Mitsubishi Electric MELSEC L v5 User's Manual
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MELSEC-L Analog Input/Output Module User's Manual
-L60AD2DA2
SAFETY PRECAUTIONS (Read these precautions before using this product.)
Before using this product, please read this manual and the relevant manuals carefully and pay full attention
to safety to handle the product correctly.
The precautions given in this manual are concerned with this product only. For the safety precautions of the
programmable controller system, refer to the user's manual for the CPU module used.
In this manual, the safety precautions are classified into two levels: " WARNING" and " CAUTION".
Under some circumstances, failure to observe the precautions given under " CAUTION" may lead to
serious consequences.
Observe the precautions of both levels because they are important for personal and system safety.
Make sure that the end users read this manual and then keep the manual in a safe place for future
reference.
[Design Precautions]
[Design Precautions]
WARNING Analog outputs may remain on due to a failure of the module. Configure an external interlock circuit
for output signals that could cause a serious accident.
Do not write any data to the "system area" and "write-protect area" (R) of the buffer memory in the
intelligent function module.
Also, do not use any "use prohibited" signals as an output signal from the programmable controller
CPU to the intelligent function module.
Doing so may cause malfunction of the programmable controller system.
CAUTION Do not install the control lines or communication cables together with the main circuit lines or power
cables. Keep a distance of 100mm or more between them. Failure to do so may result in malfunction
due to noise.
At power-on, a voltage may occur or a current may flow between output terminals for a moment. In
this case, start the control after analog outputs become stable.
Power on or off the external power supply while the programmable controller is on. Failure to do so
may result in incorrect output or malfunction.
WARNING
CAUTION
Indicates that incorrect handling may cause hazardous conditions, resulting in death or severe injury.
Indicates that incorrect handling may cause hazardous conditions, resulting in minor or moderate injury or property damage.
1
[Installation Precautions]
[Installation Precautions]
[Wiring Precautions]
[Wiring Precautions]
WARNING Shut off the external power supply (all phases) used in the system before mounting or removing a
module. Failure to do so may result in electric shock or cause the module to fail or malfunction.
CAUTION Use the programmable controller in an environment that meets the general specifications in the Safety
Guidelines provided with the CPU module or head module. Failure to do so may result in electric
shock, fire, malfunction, or damage to or deterioration of the product.
To interconnect modules, engage the respective connectors and securely lock the module joint levers
until they click. Incorrect interconnection may cause malfunction, failure, or drop of the module.
Tighten the screws within the specified torque range. Undertightening can cause drop of the screw,
short circuit, or malfunction. Overtightening can damage the screw and/or module, resulting in drop,
short circuit, or malfunction.
Do not directly touch any conductive parts and electronic components of the module. Doing so can
cause malfunction or failure of the module.
WARNING After installation and wiring, attach the included terminal cover to the module before turning it on for
operation. Failure to do so may result in electric shock.
CAUTION Individually ground the FG terminal of the programmable controller with a ground resistance of 100
ohms or less. Failure to do so may result in electric shock or malfunction.
Tighten the terminal block screws within the specified torque range. Undertightening can cause short
circuit, fire, or malfunction. Overtightening can damage the screw and/or module, resulting in drop,
short circuit, or malfunction.
Prevent foreign matter such as dust or wire chips from entering the module. Such foreign matter can
cause a fire, failure, or malfunction.
A protective film is attached to the top of the module to prevent foreign matter, such as wire chips,
from entering the module during wiring. Do not remove the film during wiring. Remove it for heat
dissipation before system operation.
Mitsubishi Electric programmable controllers must be installed in control panels. Connect the main
power supply to the power supply module in the control panel through a relay terminal block. Wiring
and replacement of a power supply module must be performed by qualified maintenance personnel
with knowledge of protection against electric shock. For wiring methods, refer to the MELSEC-L CPU
Module User's Manual (Hardware Design, Maintenance and Inspection).
2
[Startup and Maintenance Precautions]
[Startup and Maintenance Precautions]
[Disposal Precautions]
WARNING Do not touch any terminal while power is on. Doing so will cause electric shock or malfunction.
Shut off the external power supply (all phases) used in the system before cleaning the module or
retightening the terminal block screws. Failure to do so may result in electric shock.
CAUTION Do not disassemble or modify the module. Doing so may cause failure, malfunction, injury, or a fire.
Shut off the external power supply (all phases) used in the system before mounting or removing a
module. Failure to do so may cause the module to fail or malfunction.
Tighten the terminal block screws within the specified torque range. Undertightening can cause drop
of the screw, short circuit, or malfunction. Overtightening can damage the screw and/or module,
resulting in drop, short circuit, or malfunction.
After the first use of the product (module, display unit, and terminal block), the number of
connections/disconnections is limited to 50 times (in accordance with IEC 61131-2). Exceeding the
limit may cause malfunction.
Before handling the module, touch a conducting object such as a grounded metal to discharge the
static electricity from the human body. Failure to do so may cause the module to fail or malfunction.
CAUTION When disposing of this product, treat it as industrial waste.
3
CONDITIONS OF USE FOR THE PRODUCT (1) Mitsubishi programmable controller ("the PRODUCT") shall be used in conditions;
i) where any problem, fault or failure occurring in the PRODUCT, if any, shall not lead to any major
or serious accident; and
ii) where the backup and fail-safe function are systematically or automatically provided outside of
the PRODUCT for the case of any problem, fault or failure occurring in the PRODUCT.
(2) The PRODUCT has been designed and manufactured for the purpose of being used in general
industries.
MITSUBISHI SHALL HAVE NO RESPONSIBILITY OR LIABILITY (INCLUDING, BUT NOT
LIMITED TO ANY AND ALL RESPONSIBILITY OR LIABILITY BASED ON CONTRACT,
WARRANTY, TORT, PRODUCT LIABILITY) FOR ANY INJURY OR DEATH TO PERSONS OR
LOSS OR DAMAGE TO PROPERTY CAUSED BY the PRODUCT THAT ARE OPERATED OR
USED IN APPLICATION NOT INTENDED OR EXCLUDED BY INSTRUCTIONS, PRECAUTIONS,
OR WARNING CONTAINED IN MITSUBISHI'S USER, INSTRUCTION AND/OR SAFETY
MANUALS, TECHNICAL BULLETINS AND GUIDELINES FOR the PRODUCT.
("Prohibited Application")
Prohibited Applications include, but not limited to, the use of the PRODUCT in;
Nuclear Power Plants and any other power plants operated by Power companies, and/or any
other cases in which the public could be affected if any problem or fault occurs in the PRODUCT.
Railway companies or Public service purposes, and/or any other cases in which establishment of
a special quality assurance system is required by the Purchaser or End User.
Aircraft or Aerospace, Medical applications, Train equipment, transport equipment such as
Elevator and Escalator, Incineration and Fuel devices, Vehicles, Manned transportation,
Equipment for Recreation and Amusement, and Safety devices, handling of Nuclear or
Hazardous Materials or Chemicals, Mining and Drilling, and/or other applications where there is a
significant risk of injury to the public or property.
Notwithstanding the above, restrictions Mitsubishi may in its sole discretion, authorize use of the
PRODUCT in one or more of the Prohibited Applications, provided that the usage of the PRODUCT
is limited only for the specific applications agreed to by Mitsubishi and provided further that no
special quality assurance or fail-safe, redundant or other safety features which exceed the general
specifications of the PRODUCTs are required. For details, please contact the Mitsubishi
representative in your region.
4
INTRODUCTION
Thank you for purchasing the Mitsubishi Electric MELSEC-L series programmable controllers.
This manual describes the functions and programming of an analog input/output module.
Before using this product, please read this manual and the relevant manuals carefully and develop familiarity with the
functions and performance of the MELSEC-L series programmable controller to handle the product correctly.
When applying the program examples introduced in this manual to an actual system, ensure the applicability and
confirm that it will not cause system control problems.
Relevant module: L60AD2DA2
Remark
Unless otherwise specified, this manual describes the program examples in which the I/O numbers of X/Y00 to X/Y0F are assigned for an analog input/output module. For I/O number assignment, refer to the following. MELSEC-L CPU Module User's Manual (Function Explanation, Program Fundamentals)
Operating procedures are explained using GX Works2. When using GX Developer, refer to the following. When Using GX Developer ( Page 449, Appendix 9)
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COMPLIANCE WITH EMC AND LOW VOLTAGE DIRECTIVES
(1) Method of ensuring compliance To ensure that Mitsubishi Electric programmable controllers maintain EMC and Low Voltage Directives when
incorporated into other machinery or equipment, certain measures may be necessary. Please refer to one of the
following manuals.
MELSEC-L CPU Module User's Manual (Hardware Design, Maintenance and Inspection)
MELSEC-L CC-Link IE Field Network Head Module User's Manual
Safety Guidelines (This manual is included with the CPU module or head module.)
The CE mark on the side of the programmable controller indicates compliance with EMC and Low Voltage
Directives.
(2) Additional measures No additional measures are necessary for the compliance of this product with the EMC and Low Voltage
Directives.
6
RELEVANT MANUALS
(1) CPU module user's manual
(2) Head module users manual
(3) Operating manual
Manual name
Description
MELSEC-L CPU Module User's Manual (Hardware Design, Maintenance and
Inspection)
Specifications of the CPU modules, power supply modules, display unit,
branch module, extension module, SD memory cards, and batteries,
information on how to establish a system, maintenance and inspection, and
troubleshooting
MELSEC-L CPU Module User's Manual (Function Explanation, Program
Fundamentals)
Functions and devices of the CPU module, and programming
Manual name
Description
MELSEC-L CC-Link IE Field Network Head Module User's Manual
Specifications, procedures before operation, system configuration, installation,
wiring, settings, and troubleshooting of the head module
Manual name
Description
GX Works2 Version 1 Operating Manual (Common)
System configuration, parameter settings, and online operations of GX
Works2, which are common to Simple projects and Structured projects
GX Developer Version 8 Operating Manual
Operating methods of GX Developer, such as programming, printing,
monitoring, and debugging
GX LogViewer Version1 Operating Manual
7
CONTENTS
8
CONTENTS
SAFETY PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 CONDITIONS OF USE FOR THE PRODUCT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 COMPLIANCE WITH EMC AND LOW VOLTAGE DIRECTIVES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 RELEVANT MANUALS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 MANUAL PAGE ORGANIZATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 TERMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 PACKING LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
CHAPTER 1 ANALOG I/O MODULE 17
1.1 Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
1.2 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
CHAPTER 2 PART NAMES 20
CHAPTER 3 SPECIFICATIONS 22
3.1 General Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
3.2 Performance Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
3.2.1 Number of parameter settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
3.3 Function List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
3.4 I/O Signal List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
3.5 List of Buffer Memory Addresses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
CHAPTER 4 PROCEDURES BEFORE OPERATION 44
CHAPTER 5 SYSTEM CONFIGURATION 46
5.1 Overall System Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
5.2 Applicable System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
5.3 Restrictions When the Analog I/O Module Is Connected to a Head Module . . . . . . . . . . . . . . 47
CHAPTER 6 INSTALLATION AND WIRING 48
6.1 Installation Environment and Installation Position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
6.2 Terminal Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
6.3 Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
6.4 External Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
CHAPTER 7 VARIOUS SETTINGS 54
7.1 Addition of Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
7.2 Switch Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
7.3 Parameter Setting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
7.4 Auto Refresh. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
7.5 Offset/gain Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
7.5.1 Setting from "Offset/Gain Setting" of GX Works2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .61
7.5.2 Setting from a program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .68
CHAPTER 8 FUNCTIONS 76
8.1 Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
8.2 Enable/Disable Setting and Conversion Speed of A/D and D/A Conversion . . . . . . . . . . . . . . 81
8.3 Processing Order of Each A/D Conversion Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
8.4 A/D Conversion Enable/Disable Function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
8.5 A/D Conversion Method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
8.6 Input Range Extension Function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
8.7 Maximum Value/Minimum Value Hold Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
8.8 Input Signal Error Detection Function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
8.9 Scaling Function (A/D Conversion). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
8.10 Logging Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
8.10.1 Stopping the logging operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .113
8.10.2 Logging hold request . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .117
8.10.3 Level trigger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .118
8.10.4 Initial setting for the logging function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .121
8.11 Processing Order of Each D/A Conversion Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122
8.12 D/A Conversion Enable/Disable Function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
8.13 D/A Output Enable/Disable Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126
8.14 Analog Output HOLD/CLEAR Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127
8.15 Analog Output Test When CPU Module Is in STOP Status . . . . . . . . . . . . . . . . . . . . . . . . . . 132
8.16 Scaling Function (D/A Conversion). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134
8.17 Warning Output Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141
8.18 Wave Output Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144
8.18.1 Initial settings of the wave output function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .152
8.18.2 Execution of the wave output function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .168
8.18.3 Points to use the wave output function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .175
8.18.4 Wave output step action function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .183
8.19 Variable Arithmetic Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 192
8.19.1 Initial setting of the variable arithmetic function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .197
8.19.2 Execution of the variable arithmetic function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .205
8.19.3 Points to use the variable arithmetic function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .211
8.20 Variable Conversion Characteristics Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 212
8.20.1 Initial setting of the variable conversion characteristics function . . . . . . . . . . . . . . . . . . . . . .218
8.20.2 Execution of the variable conversion characteristics function . . . . . . . . . . . . . . . . . . . . . . . .229
8.21 Variable Conversion Characteristics Function + Variable Arithmetic Function . . . . . . . . . . . . 239
8.21.1 Initial setting of the variable conversion characteristics function + variable arithmetic function
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .241
8.21.2 Operation of the variable conversion characteristics function + variable arithmetic function
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .243
8.22 PID Control Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 246
8.22.1 Initial setting of the PID control function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .258
8.22.2 Executing the auto tuning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .263
8.22.3 Monitoring the PID control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .267
9
10
8.22.4 Points to use the PID control function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .267
8.23 Error Log Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 269
8.24 Module Error Collection Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 272
8.25 Error Clear Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 273
8.26 Save/Restoration of Offset/Gain Value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 274
CHAPTER 9 DISPLAY UNIT 280
9.1 Display Unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 280
9.2 Menu Transition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 280
9.3 List of Setting Value Change Windows. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 282
9.4 Checking and Clearing Errors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 288
CHAPTER 10 PROGRAMMING 290
10.1 Procedure for Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 290
10.2 When Using the Module in a Standard System Configuration . . . . . . . . . . . . . . . . . . . . . . . . 292
10.3 When an Analog I/O Module Is Connected to a Head Module . . . . . . . . . . . . . . . . . . . . . . . . 301
CHAPTER 11 TROUBLESHOOTING 311
11.1 Checking on the "Module's Detailed Information" Window. . . . . . . . . . . . . . . . . . . . . . . . . . . 312
11.2 Checking in Latest error code (Un\G19) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 313
11.3 Checking Through the Module Error Collection Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . 314
11.4 Error Code List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 315
11.5 Alarm Code List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 324
11.6 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 328
11.6.1 Troubleshooting using LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .328
11.6.2 Troubleshooting for the A/D conversion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .330
11.6.3 Troubleshooting for the D/A conversion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .335
11.7 Checking the Status of Analog I/O Module by the System Monitor . . . . . . . . . . . . . . . . . . . . 342
APPENDICES 344
Appendix 1 Details of I/O Signals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 344
Appendix 1.1 Input signal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .344
Appendix 1.2 Output signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .351
Appendix 2 Details of Buffer Memory Addresses. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 354
Appendix 3 I/O Conversion Characteristic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 425
Appendix 3.1 I/O conversion characteristic of A/D conversion . . . . . . . . . . . . . . . . . . . . . . . . . . . .425
Appendix 3.2 I/O conversion characteristic of D/A conversion . . . . . . . . . . . . . . . . . . . . . . . . . . . .428
Appendix 4 Accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 430
Appendix 4.1 A/D conversion accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .430
Appendix 4.2 D/A conversion accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .431
Appendix 5 Dedicated Instruction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 432
Appendix 5.1 Instruction list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .432
Appendix 5.2 G(P).OFFGAN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .433
Appendix 5.3 G(P).OGLOAD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .435
Appendix 5.4 G(P).OGSTOR. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .438
Appendix 6 PID . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 441
Appendix 6.1 PID operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .441
Appendix 6.2 Operation method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .445
Appendix 7 How to Check the Function Version and Serial Number . . . . . . . . . . . . . . . . . . . . . . . . 446
Appendix 8 Added and Changed Functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 448
Appendix 8.1 Added functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .448
Appendix 9 When Using GX Developer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 449
Appendix 9.1 Operation of GX Developer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .449
Appendix 10External Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 453
INDEX 455
INSTRUCTION INDEX 458
REVISIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 460 WARRANTY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 461 TRADEMARKS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 462
11
MANUAL PAGE ORGANIZATION
In this manual, pages are organized and the symbols are used as shown below.
The following illustration is for explanation purpose only, and should not be referred to as an actual documentation.
*1 The mouse operation example (for GX Works2) is provided below.
The section of the current page is shown.
The chapter of the current page is shown.
"" is used for screen names and items.
[ ] is used for items in the menu bar and the project window.
shows operating procedures.
shows reference manuals.
shows notes that requires attention.
shows mouse operations.*1
shows reference pages.
shows setting or operating examples. Ex.
shows useful information.
A window selected in the view selection area is displayed.
View selection area
[Online] [Write to PLC...] Select [Online] on the menu bar, and then select [Write to PLC...].
Project window [Parameter] [PLC Parameter] Select [Project] from the view selection area to open the Project window.
Menu bar
Ex.
Ex.
In the Project window, expand [Parameter] and select [PLC Parameter].
12
Pages describing instructions are organized as shown below.
The following illustration is for explanation purpose only, and should not be referred to as an actual documentation.
Descriptions of setting data and data type
Instruction name
Structure of the instruction in the ladder mode
Descriptions of control data (if any)
Execution condition of the instruction
Setting side User : Device value is set by the user. System: Device value is set by the CPU module.
shows the devices applicable to the instruction
13
Instructions can be executed under the following conditions.
The following devices can be used.
*1 For details on each device, refer to the following. MELSEC-L CPU Module User's Manual (Function Explanation, Program Fundamentals)
*2 FX and FY can be used for bit data only, and FD for word data only. *3 In the "Constant" and "Others" columns, a device(s) that can be set for each instruction is shown.
The following data types can be used.
Execution condition Any time During on On the rising edge During off On the falling edge
Symbol No symbol
Setting
data
Internal device
(system, user) File
register
Link direct device
J\ Intelligent function
module
U\G
Index
register
Zn Constant*3 Others*3
Bit Word Bit Word
Applicable
device*1
X, Y, M, L,
SM, F, B,
SB, FX,
FY*2
T, ST, C, D,
W, SD,
SW, FD,
@
R, ZR U\G Z K, H, E, $
P, I, J, U,
D, X, DY,
N, BL, TR,
BL\S,V
Data type Description
Bit Bit data or the start number of bit data
BIN 16-bit 16-bit binary data or the start number of word device
BIN 32-bit 32-bit binary data or the start number of double-word device
BCD 4-digit Four-digit binary-coded decimal data
BCD 8-digit Eight-digit binary-coded decimal data
Real number Floating-point data
Character string Character string data
Device name Device name data
Conditions for the error and error codes For the errors not described in this manual, refer to the following. MELSEC-L CPU Module User's Manual (Hardware Design, Maintenance and Inspection)
Simple program example(s) and descriptions of the devices used
Detailed descriptions of the instruction
14
Pages describing functions, I/O signals, and buffer memory areas are organized as shown below.
The following illustration is for explanation purpose only, and should not be referred to as an actual documentation.
The meaning of each icon is as follows.
Icon Description
The corresponding buffer memory area, I/O signal, or function is for both A/D conversion and D/A conversion.
The corresponding buffer memory area, I/O signal, or function is for A/D conversion.
The corresponding buffer memory area, I/O signal, or function is for D/A conversion.
The corresponding buffer memory area, I/O signal, or function is for the variable arithmetic function.
The corresponding buffer memory area, I/O signal, or function is for the variable conversion characteristics function.
The corresponding buffer memory area, I/O signal, or function is for the PID control function.
The icon shows an available conversion method.
Common
A/D conversion
D/A conversion
Variable arithmetic
Variable conversion
PID control
15
TERMS
Unless otherwise specified, this manual uses the following terms.
PACKING LIST
The following items are included in the package of this product. Before use, check that all the items are included.
Term Description
Analog I/O module The abbreviation for the MELSEC-L series analog input/output module
Buffer memory A memory in an intelligent function module, where data (such as setting values and monitoring values) exchanged with
a CPU module are stored
Display unit A liquid crystal display to be attached to the CPU module
Factory default setting A generic term for analog input/output ranges of 4 to 20mA, 0 to 20mA, 1 to 5V, 0 to 5V, -10 to 10V, and 0 to 10V
GX Developer The product name of the software package for the MELSEC programmable controllers
GX LogViewer Software to display data collected by the logging function
GX Works2 The product name of the software package for the MELSEC programmable controllers
Head module The abbreviation for the LJ72GF15-T2 CC-Link IE Field Network head module
Normal mode
A drive mode set in the switch setting window.
Note that the normal mode is displayed as "Normal (A/D Converter Processing, D/A Converter Processing) Mode" on
the programming tool.
Offset/gain setting mode A drive mode set in the switch setting window.
Programming tool A generic term for GX Works2 and GX Developer
Switch setting A generic term for the setting items in the window that is displayed by double-clicking "Switch Setting" of the specified
module on the project window of GX Works2
User range setting An analog input or output range where a user can set any values. To use this range, the offset and gain values have to
be set.
Watchdog timer error An analog I/O module monitors its own internal processing by using the watchdog timer. The module generates this
error if the internal processing fails.
L60AD2DA2
L60AD2DA2 Before Using the Product
16
CHAPTER 1 ANALOG I/O MODULE
1
1 .1
A p
p lica
tio n
CHAPTER 1 ANALOG I/O MODULE
This chapter describes the applications and features of the analog I/O module.
1.1 Application
An analog I/O module has two sets of A/D conversion channels and D/A conversion channels.
The fewer number of analog I/O points reduces the required number of analog modules, resulting in the cost reduction
and space saving on the system.
With the analog I/O module, the following applications are possible.
Measuring and controlling the flow in the connection with a control valve Measuring and controlling the heat from a heater or other devices in the connection
with a power conditioner
Analog signal (continuous signal) Digital signal (discrete signal)
Analog to digital conversion
Digital to analog conversion
Control valve Flow control
Tank
Power conditioner
Heater
17
1.2 Features
(1) Scale conversion This function converts a digital output value (A/D conversion) and a digital input value (D/A conversion) to the
ratio value (%) in any width to represent the digital value in a numeric value easy to understand.
(2) Comparing and monitoring an object The input signal error detection function and the input range extension function allow the status of the connected
device to be easily monitored.
(3) Logging function An analysis of the collected data through the logging function improves maintainability of the system in use.
(4) Wave output function This function outputs any points from 50000 points of the wave data (digital input value) in analog by executing
the D/A conversion sequentially. The conversion cycle in the wave output function can be set for each channel. A
control with the conversion faster than that of a program control is enabled by the registration of the control wave
data to the analog I/O module and the analog output from the module. And this method is useful for an analog
(torque) control of equipments such as pressing machines and injection molding units. Because the update of the
analog output value of the wave output function is not affected by the scan time of the CPU module, a faster and
smoother analog control is available.
(5) Variable arithmetic function This function executes polynomial operations in the analog I/O module. For the polynomial expressions, any
combination of parentheses, operators, constants set by users, and data stored in the buffer memory can be
used. Up to two polynomial expressions can be registered. When conversion is enabled for a D/A conversion
channel, operation results are output in analog.
Only by registering arithmetic expression data in the analog I/O module, polynomial operations can be executed.
Thus, no programs for the operation are required on the CPU module and the man-hour for creating programs
can be reduced. In addition, advanced operations independent of the scan time of the CPU module can be
executed.
(6) Variable conversion characteristics function Conventionally, the I/O conversion characteristic of the analog I/O module (A/D conversion and D/A conversion)
is indicated with a straight line connecting the offset value and the gain value. However, with this function, the
conversion characteristic can be set by users.
Only by registering a conversion characteristics table in this module, values are converted according to the
conversion characteristics. Thus, no programs for the operation are required on the CPU module and the man-
hour for creating programs can be reduced. With high-speed performance that the analog I/O module has,
analog input, analog output, and analog input/output can be performed with the variable conversion characteristic
created by users.
18
CHAPTER 1 ANALOG I/O MODULE
1
1 .2
F e
a tu
re s
(7) Variable conversion characteristics function + variable arithmetic function The variable conversion characteristics function and the variable arithmetic function can be used together.
Because the operation for digital values converted according to variable conversion characteristics can be
executed with polynomial expressions registered by users, more advanced control compared to using only the
variable conversion characteristics function is available.
(8) PID control function Using this function, an analog input signal from a sensor (such as pressure and flow rate) is input to the module
as the process value (PV) (16-bit signed binary) and the PID operation is performed in the module so that the
input value reaches the set value (SV). The manipulated value (MV) calculated in the PID operation is output to
an external operation device as an analog value of current or voltage.
Because the PID control is performed with the operation cycle of 200s/CH, the control can be applied to a field
which requires high-speed control such as the forming field.
(9) Easy setting with GX Works2 Programming is reduced because the initial setting or auto refresh setting can be configured on the screen. In
addition, setting status and operating status of modules can be checked easily. With the wave output function,
wave data can be created easily by using "Create Wave Output Data".
19