Table of Contents

MPA-8A8T

MPA Series is an assembled industrial PLC combining a CPU module with digital input and output modules.
Analog input/output, temperature sensor input, and high-speed pulse output modules can be added as options.
The selected I/O and optional modules are assembled and shipped as one product. Users cannot add or remove modules.

MPA-8A8T provides 8 digital inputs and 8 SINK transistor outputs.

Program with ladder logic using MP STUDIO.






MPA-8A8T connector guide

Product Specifications

Category Quantity Terminal / Item Specifications
Programming method - - MP STUDIO
MP STUDIO2
(Ladder logic program)
Power - Supply voltage DC 12~24V
For DC 24V, a power supply rated 0.5A or more is recommended
Digital inputs 8 points
(Isolated) 		Module 0: P0~P7 Operating input voltage DC 0~30V
HIGH detection: DC 5V or higher
Optocoupler isolation
Transistor outputs 8 points
(Isolated SINK) 		Module 0: P32~P39 P24: DC 5~24V
Load voltage DC 0~100V
Max. 1A/1 points, 8A/1COM
High-speed counter inputs 2 points
(Isolated) 		P0, P1 Max. 8kHz
Shared with digital inputs
Encoder Inputs 2 points
(Isolated) 		P0(A)·P2(B)
P1(A)·P3(B) 		Max. 8kHz
Shared with high-speed counter inputs
Optional modules up to 20 points Analog inputs
PT100Ω temperature sensor input 		Optional specifications
up to 12 points Analog outputs
High-speed pulse outputs 		Optional specifications
Communication Channels 1 channel each RS-232
RS-485
UART
I²C 		Built into the CPU module
Memory - Flash
Data 		256KB
8KB

Digital inputs

See the one-channel digital-input check before wiring for the first time. →

Module Group Input contacts Input configuration Terminal blocks and wiring examples
Module 0 COM0
COM1 		P0~P3
P4~P7 		8 isolated digital inputs
4 points/1COM
P0/P1 share high-speed counter inputs 		MPA-8A8T digital input wiring example

The diagram shows a wiring example for module 0. For other modules, use the corresponding contact numbers in the table. This example uses a DC 24V supply; each group can use PNP or NPN depending on its COM wiring.

The digital inputs are isolated by optocouplers. NPN or PNP switches and sensors can be used depending on the COM terminal wiring of each input module.

Transistor outputs

See the one-channel SINK transistor-output check before wiring for the first time. →

Module Output contacts Output power Output configuration Terminal blocks and wiring examples
Module 0 P32~P39 P24
N24 		8 isolated SINK transistor outputs MPA-8A8T transistor output wiring example

The diagram shows a wiring example for module 0. For other modules, use the corresponding contact numbers in the table.

Connect DC 5~24V to P24 on each module and connect the supply GND to N24. When the output is ON, the output contact is connected to the GND supplied at N24.

High-speed counter / Encoder inputs

Function Contact Maximum input frequency Shared functions Input signal connection
High-speed counters 0·1 P0, P1 8kHz Digital inputs MPA-8A8T high-speed counter 0/1 signal connections
Encoder 0 P0(A), P2(B) 8kHz High-speed counter 0 MPA-8A8T encoder 0 signal connections
Encoder 1 P1(A), P3(B) 8kHz High-speed counter 1 MPA-8A8T encoder 1 signal connections

The diagram shows the input contacts for the high-speed counter pulse signal and encoder phases A and B. Power and common wiring for the isolated inputs are not included in this diagram.

Optional modules

Module Maximum points Function
Analog inputs 20 points DC 0~5V, DC 0~10V, 0~20mA or NTC temperature sensor input
PT100Ω temperature sensor input 20 points 2-wire or 3-wire PT100Ω temperature sensor input
Analog outputs 12 points DC 0~5V, DC 0~10V or 0~20mA output
High-speed pulse outputs 12 points Pulse output up to 1MHz

Communication and program upload

Function channel Terminals / Ports Usage Device wiring
Program upload and monitoring - DOWNLOAD Select as download port in MP STUDIO MPA-8A8T communication and program upload wiring example
RS-232 Channel 1 TX, RX, GND Use MP STUDIO communication port settings
RS-485 Channel 2 485+, 485- Use MP STUDIO communication port settings
UART channel 3 TXD, RXD, GND Use MP STUDIO communication port settings
I²C 1 channel SDA, SCL Master communication

The I²C diagram shows a connection example for a 5V device. Check the other device's signal voltage before connecting UART.

Status LED

Control the CPU module STATUS LED with the @SLED contact in MP STUDIO.

Development environment setup

  1. Connect the computer to the CPU module DOWNLOAD port with a USB cable.
  2. Check the download port's COM number in Device Manager.
  3. In MP STUDIO, open the MPA tab and select MPA-8A8R(T).
  4. Set the verified COM number as the download port, then download the ladder program.

Dimensions

Item Dimensions
Product width 55mm
Body height 108mm
Overall height Clip open: 120.42mm
Clip closed: 115.16mm
Product depth Body: 79mm
Maximum with terminals: 83mm
Mounting hole spacing 27mm
Mounting hole diameter Ø4mm
DIN rail 35mm
Front view Side view
Rear view

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