Mitsubishi MELSEC-L Series User manual

1
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
●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.
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.

2
[Installation Precautions]
[Installation Precautions]
[Wiring Precautions]
[Wiring Precautions]
WARNING
●Shut off the external power supply for the system in all phases 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
MELSEC-L CPU Module User's Manual (Hardware Design, Maintenance and Inspection). 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. Incorrect interconnection may cause malfunction, failure, or drop of the module.
●Tighten the screw 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
●Ground the FG terminal to the protective ground conductor dedicated to the programmable
controller. Failure to do so may result in electric shock or malfunction.
●Tighten the terminal block screw 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.

3
[Wiring Precautions]
[Startup and Maintenance Precautions]
[Startup and Maintenance Precautions]
[Disposal Precautions]
CAUTION
●Mitsubishi 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).
WARNING
●Do not touch any terminal while power is on. Doing so will cause electric shock or malfunction.
●Shut off the external power supply for the system in all phases before cleaning the module or
retightening the terminal block screw. 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 for the system in all phases before mounting or removing a
module. Failure to do so may cause the module to fail or malfunction.
●Tighten the terminal block screw within the specified torque range. Undertightening can cause drop
of the component or wire, short circuit, or malfunction. Overtightening can damage the screw and/or
module, resulting in drop, short circuit, or 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.

4
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.

5
INTRODUCTION
Thank you for purchasing the Mitsubishi MELSEC-L series programmable controllers.
This manual describes the functions and programming of an analog-digital converter module (hereafter abbreviated as
A/D converter 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 the actual system, ensure the applicability and
confirm that it will not cause system control problems.
Relevant module: L60AD4
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 A/D converter 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 or GX Configurator-AD, refer to the
following.
• When using GX Developer or GX Configurator-AD ( Page 132, Appendix 8)

6
COMPLIANCE WITH THE EMC AND LOW VOLTAGE
DIRECTIVES
(1) For programmable controller system
To configure a system meeting the requirements of the EMC and Low Voltage Directives when incorporating the
Mitsubishi programmable controller (EMC and Low Voltage Directives compliant) into other machinery or
equipment, refer to the MELSEC-L CPU Module User's Manual (Hardware Design, Maintenance and Inspection).
The CE mark, indicating compliance with the EMC and Low Voltage Directives, is printed on the rating plate of the
programmable controller.
(2) For the product
No additional measures are necessary for the compliance of this product with the EMC and Low Voltage
Directives.

7
RELEVANT MANUALS
(1) CPU module user's manual
(2) Operating manual
Manual name
<manual number (model code)> Description
MELSEC-L CPU Module User's Manual (Hardware Design,
Maintenance and Inspection)
<SH-080890ENG, 13JZ36>
Specifications of the CPU modules, power supply modules, display
unit, 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)
<SH-080889ENG, 13JZ35>
Functions and devices of the CPU module, and programming
Manual name
<manual number (model code)> Description
GX Works2 Version1 Operating Manual (Common)
<SH-080779ENG, 13JU63>
System configuration, parameter settings, and online operations
(common to Simple project and Structured project) of GX Works2
GX Developer Version 8 Operating Manual
<SH-080373E, 13JU41>
Operating methods of GX Developer, such as programming,
printing, monitoring, and debugging

CONTENTS
8
CONTENTS
SAFETY PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
CONDITIONS OF USE FOR THE PRODUCT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
COMPLIANCE WITH THE EMC AND LOW VOLTAGE DIRECTIVES . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
RELEVANT MANUALS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
MANUAL PAGE ORGANIZATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
TERMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
PACKING LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
CHAPTER 1 A/D CONVERTER MODULE 15
1.1 Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
1.2 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
CHAPTER 2 PART NAMES 17
CHAPTER 3 SPECIFICATIONS 19
3.1 General Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
3.2 Performance Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
3.2.1 Number of parameter settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
3.3 Function List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
3.4 I/O Signal List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
3.5 List of Buffer Memory Addresses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
CHAPTER 4 PROCEDURES BEFORE STARTING THE OPERATION 30
CHAPTER 5 SYSTEM CONFIGURATION 32
5.1 Overall System Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
5.2 Applicable System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
CHAPTER 6 INSTALLATION AND WIRING 34
6.1 Installation Environment and Installation Position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
6.2 Terminal Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
6.3 Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
6.4 External Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
CHAPTER 7 VARIOUS SETTINGS 39
7.1 Addition of Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
7.2 Switch Setting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
7.3 Parameter Setting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
7.4 Auto Refresh. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
7.5 Offset/Gain Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

9
CHAPTER 8 FUNCTIONS 47
8.1 Digital Data Details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
8.2 A/D Conversion Enable/Disable Function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
8.3 A/D Conversion Method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
8.4 Conversion Speed Switch Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
8.5 Maximum and Minimum Values Hold Function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
8.6 Input Signal Error Detection Function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
8.7 Warning Output Function (Process Alarm) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
8.8 Scaling Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
8.9 Error Log Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
8.10 Module Error Collection Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .64
8.11 Error Clear Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
8.12 Saving and Restoring Offset/Gain Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
CHAPTER 9 DISPLAY UNIT 71
9.1 Display Unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
9.2 Menu Transition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
9.3 List of Setting Value Change Screens . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
9.4 Checking and Clearing Errors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
CHAPTER 10 PROGRAMMING 80
10.1 Procedure for Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
10.2 When Using the Module in a Standard System Configuration . . . . . . . . . . . . . . . . . . . . . . . . . 81
CHAPTER 11 TROUBLESHOOTING 87
11.1 Checking on the Module Detailed Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
11.2 Checking by Latest Error Code (Un\G19). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
11.3 Checking on the Module Error Collection Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
11.4 Error Code List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
11.5 Alarm Code List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
11.6 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
11.7 Checking the Status of the A/D Converter Module by the System Monitor . . . . . . . . . . . . . . . 94
APPENDICES 95
Appendix 1 Details of I/O Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Appendix 1.1 Input signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .95
Appendix 1.2 Output signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .100
Appendix 2 Details of Buffer Memory Addresses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
Appendix 3 I/O Conversion Characteristic of A/D Conversion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
Appendix 4 A/D Conversion Accuracy. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117

10
Appendix 5 Dedicated Instruction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
Appendix 5.1 Instruction list. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .118
Appendix 5.2 G(P).OFFGAN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
Appendix 5.3 G(P).OGLOAD. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .121
Appendix 5.4 G(P).OGSTOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .125
Appendix 6 Checking Serial Number and Function Version . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129
Appendix 7 Differences with Q Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129
Appendix 7.1 Precautions for Applying Q Series Sequence Program. . . . . . . . . . . . . . . . . . . . . . . .130
Appendix 8 When Using GX Developer or GX Configurator-AD. . . . . . . . . . . . . . . . . . . . . . . . . . . . 132
Appendix 8.1 Operation of GX Developer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .132
Appendix 8.2 Operation of GX Configurator-AD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .138
Appendix 9 External Dimensions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140
INDEX 141
INSTRUCTION INDEX 143
REVISIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145

11
MANUAL PAGE ORGANIZATION
In this manual, pages are organized and the symbols are used as shown below.
The following page illustration is for explanation purpose only, and is different from the actual pages.
*1 The mouse operation example is provided below. (For GX Works2)
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 page illustrations are for explanation purpose only, and are different from the actual pages.
Descriptions of
setting data and data type
Instruction name
Structure of the instruction
in the ladder mode
shows the devices
applicable to the instruction
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.
C
onditions for the error and
error codes
For the errors not described in
this manual, refer to the following.
MELSEC-Q/L Programming
Manual (Common Instruction)
Simple program example(s)
and descriptions of the devices used
Detailed descriptions
of 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
device
U\G
Index
register
Zn
Con-
stant*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

14
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
A/D converter module Another term for the MELSEC-L series analog-digital converter module
Display unit A liquid crystal display to be attached to the CPU module
Programming tool Generic term for GX Works2 and GX Developer
Factory default setting Generic term for analog input ranges of 0 to 10V, 0 to 5V, 1 to 5V, -10 to 10V, 0 to 20mA, and 4 to 20mA
GX Works2 Product name of the software package for the MELSEC programmable controllers
GX Developer
GX Configurator-AD A setting and monitoring tool added in GX Developer (for A/D converter modules)
Buffer memory The memory of an intelligent function module used to store data (such as setting values and monitored
values) for communication with a CPU module.
L60AD4
L60AD4 Before Using the Product

15
CHAPTER 1 A/D CONVERTER MODULE
1
1.1 Application
CHAPTER 1 A/D CONVERTER MODULE
This chapter describes the applications and features of the A/D converter module.
1.1 Application
This module converts the analog value input from external devices to the digital output value, and inputs the converted
data to the CPU module. By converting the data, which has been processed through the A/D converter module, to a
digital data, the input information can be sent to the CPU module.
The A/D converter module enables works as follows.
Connect the module to the control valve to measure the flow Connect the module to the power conditioning equipment to
measure the heating temperature of the heater or others
Analog signal (continuous signal)
Analog to digital
conversion
Digital signal (discrete signal)
Control valve Flow control
Tan k
Power conditioner
Heater

16
1.2 Features
(1) Response by high-speed conversion
The high-speed conversion of 20μs/channel is achieved.
(2) Detailed control by high resolution
In all analog input ranges, the high resolution of 1/20000 is achieved.
(3) Reliability by high accuracy
The accuracy for the maximum value of the digital output value is ±0.1% (25±5°C), ±0.2% (0 to 55°C).
(4) Scaling function
This function converts a digital output value to the ratio value (%) in any width to represent the digital value in a
numeric value easy to understand.
(5) Comparing/monitoring the measurement target
By using the input signal error detection function or alarm output function (process alarm), statuses of connected
devices can be monitored easily.

17
CHAPTER 2 PART NAMES
2
CHAPTER 2 PART NAMES
The following table shows part names of the A/D converter module.
*1 Error Code List ( Page 89, Section 11.4)
*2 Alarm Code List ( Page 91, Section 11.5)
Number Name Description
1) Module joint levers Levers for connecting modules
2) RUN LED (green)
Displays the operating status of the A/D converter module.
On: The module is operating normally.
Flashing: In the offset/gain setting mode
Off: The 5V power off or watchdog timer error has occurred.
3) ERR. LED (red)
Displays the errors and status of the A/D converter module.
On: an error has occurred except for error code: 112*1
Flashing: Error code: 112 has occurred.*1
Off: The module is operating normally.
4) ALM LED (red)
Displays the alarm status of the A/D converter module.
On: Alarm (process alarm) is occurring*2
Flashing: Input signal error detection is occurring
Off: The module is operating normally.*2
5) DIN rail hook A hook used to mount the module to a DIN rail
6) Terminal block 18-pin screw terminal block for connecting input signal lines of such as external devices
7) Terminal block cover Covers for preventing electric shock while the power is on
8) Serial number display Displays the serial number printed on the rating plate.
4)
1)
2) 1)
1)
5)
1)
3)
6)
7)
8)

18
Memo