Mitsubishi MELSEC A1S62P User Manual

i PROGRAMMING I
I Soecial reaisters D I
The special registers (D) are data registers which have a predefined function. They
must not be written
too in the sequence program, except for those indicated. A
table of all the special registers and details of their functions is shown below.
Number
D9000
D9002
D9005
*'D9008
D9009
D9010
D9011
D9014
Name
Fuse blown
I/O unit verify error
AC down counter
Self diagnostic error
Annunciator
detection
Error step
Error step
I/O control mode
Stored Data
Fuse blown module
number
110 unit verify error
module number
AC down time count
Self diagnostic error
number
F number at which the
external failure has
occurred.
Step number at which the
operation has occurred.
Step number at which the
operation has occurred.
110 control mode number
Explanation
When
a fuse blown module is detected,
the
lowest number of the detected unit is
stored in hexadecimal.
Cleared when all contents of D91W are
reset
to 0.
If any 110 unit data is different from the
data entered when power was turned
ON, the first 110 number of the lowest
number module among those detected
is stored in hexadecimal.
Cleared when all contents of D91W are
reset
to 0.
1 is added each time the input voltage
becomes
80% or less of the rated
voltage while the
CPU is performing
operations. The number is stored in
binary.
When an error is detected as a result of
self diagnosis, the error number is
stored in binarv.
When one or more annunciators are
turned
ON, the number of the earliest
detected annunciator is stored in binary.
D9009 can be cleared using the RST or
LEDR instruction.
When an operation error occurs during
the execution of an application
instruction, the step number at which
the error has occurred
is stored in
binary.
Thereafter, each time an operation error
occurs the contents
of D9010 is
renewed
When an operation error occurs during
the execution of an application
instruction, the step number at which
the error has occurred is stored in
binary.
The contents cannot be renewed unless
M9011 is reset and then turned
ON
again.
The set mode is represented as below;
0 = Direct mode
3 = Refresh mode
70

Mitsubishi MELSEC A1S62P Specifications

General

Category	Controller
Series	MELSEC A
Model	A1S62P
Input Voltage	AC 100-240V
Input Frequency	50/60 Hz
Input Type	Digital
Output Type	Relay
Communication Interface	RS-232
Mounting	DIN rail
Operating Temperature	0 to 55 °C
Type	Programmable Logic Controller (PLC)
Output Current	0.5A
Power Supply	100-240V AC
Storage Temperature	-25°C to 75°C
Humidity	5% to 95% (non-condensing)

Summary

Chapter 1: Overview of the A1S PLC

What is the A1S?

Introduction to the Mitsubishi A1S PLC as a low-cost, high-performance controller.

How Does It Work?

Explanation of the sequential control program execution and CPU module operation.

Chapter 2: A1S Module Descriptions

Central processing unit (CPU Module)

Details the CPU module, its functions, and specifications.

CPU Base Units

Describes CPU base units for mounting CPU, power supply, and I/O modules.

Special function modules

Explains intelligent I/O modules for specific applications like control, linking, and networking.

Power supply modules

Explains power supply modules providing 5 VDC for CPU and I/O modules.

Input modules

Describes input modules for interfacing with external input devices.

Model No. A1SX10

Details the A1SX10 input module with 16 x 110 VAC inputs and terminal block wiring.

Model No. A1SX20

Details the A1SX20 input module with 16 x 240 VAC inputs and terminal block wiring.

Model No. A1SX30

Details the A1SX30 input module with 16 x 24 VAC/VDC inputs and terminal block wiring.

Model No. A1SX40

Model No. A1SX40-S1

Model No. A1SX40-S2

Model No. A1SX41

Model No. A1SX41-S2

Model No. A1SX42

Model No. A1SX42-S2

Model No. A1SX71

Model No. A1SX80

Model No. A1SX80-S1

Model No. A1SX80-S2

Model No. A1SX81

Model No. A1SX81-S2

Output modules

Describes output modules for interfacing with external output devices.

Model No. A1SY10

Model No. A1SY18A

Model No. A1SY22

Model No. A1SY28A

Model No. A1SY40

Model No. A1SY41

Model No. A1SY42

Model No. A1SY50

Model No. A1SY60

Model No. A1SY60E

Model No. A1SY68A

Model No. A1SY71

Model No. A1SY80

Model No. A1SY81

Special function modules

Explains intelligent I/O modules for specific applications like control, linking, and networking.

Model No. A1S64AD

Model No. A1S62DA

Model No. A1SJ71C24-R2

Model No. A1SJ71C24-R4

Model No. A1SJ71C24-PRF

Model No. A1SD61

Model No. A1SJ71T21B

Model No. A1SD70

Model No. A1SP60

Model No. A1S42X

Chapter 3: System Selection and Configuration

System selection

Guide to selecting the appropriate AIS PLC system components based on application needs.

Step 1: Input module selection

A flowchart to help select the correct input module based on specifications.

Step 2: Output module selection

A flowchart to help select the correct output module based on specifications.

Step 3: Special function module selection

A flowchart to guide the selection of special function modules based on application requirements.

Step 4: Power supply module selection

A flowchart for selecting the appropriate power supply module based on voltage and output needs.

Step 5: Base unit selection

A flowchart for selecting the base unit based on the number of required I/O slots.

System configuration

Instructions on configuring the system and assigning I/O numbers to selected modules.

Chapter 4: Installation

Base unit mounting instructions

Provides guidelines for mounting CPU and extension base units, including clearance.

Mounting the base units on DIN rail

Installation and removal of AIS modules

Explains how to install and remove AIS modules from the base unit.

Removing a module from the base unit

Step-by-step guide for removing a module from the base unit.

Chapter 5: Wiring

Wiring instructions for the power supply module

Provides wiring guidelines for power supply modules, including transformer usage.

Wiring of I/O equipment

Wiring instructions for equipment connected to input and output modules.

Grounding

Guidelines for proper grounding of the PLC system.

Chapter 6: Programming

Description of internal devices

Explains internal devices used in sequence programs like relays, timers, and counters.

Inputs X

Outputs Y

Programming language

Instructions

Classifies and introduces instructions into three groups: sequence, basic, application.

List of sequence instructions

Contact instructions

Operation result push, read, pop (MPS, MRD, MPP)

Output instructions

Explains output instructions like OUT for bit devices, timers, and counters.

Bit device set, reset (SET, RST)

Explains SET and RST instructions for controlling bit devices.

Edge-triggered differential output (PLS, PLF)

Explains PLS and PLF instructions for pulse output generation.

Master control instructions

Explains master control instructions MC and MCR for circuit switching.

Basic instruction descriptions

Introduces basic instructions for handling numeric data.

Comparison operation instructions

Explains instructions for numerical magnitude comparisons.

Arithmetic operation instructions

Explains instructions for performing addition, subtraction, multiplication, division.

BCD/BIN conversion instructions

Data transfer instructions

Explains instructions for data transfer and interchange.

Application instruction descriptions

Classifies and introduces application instructions for special processing.

Logical operation instructions

Shift instructions