PL280 Compact PLC
  • Features
    • Compact Design.
    • High-Performance CPU.
    • Programmable with LogicLab.
    • RS485 serial communication (Modbus RTU).
    • Ethernet communication (Modbus TCP).
    • CANopen communication.
    • Expandable with Remote I/O Capability.
    • Industry 4.0 Ready.
    • Temperature and Process Control.
    • PID-Autotuning.

PL280 Compact PLC

Compact PLC

The PL280 is a compact PLC that integrates both analogue and digital I/Os. It features a CPU based on the ARM CORTEX H7 480MHz microprocessor and is programmable with LogicLab (IEC 61131-3). The PL280 is designed as a control unit and connectivity node, offering RS485 serial (Modbus RTU), Ethernet (Modbus TCP), and CANopen communication capabilities.
The PL280 can be expanded using PLE500 I/O modules, which connect to the CPU via an internal real-time bus on a DIN rail, or with MCM260X modules for remote I/Os. It supports Industry 4.0 connectivity through the Modbus TCP protocol.
Additionally, the PL280 series can function as an I/O unit with Modbus TCP/RTU connectivity and serve as a secondary logic controller for temperature and process control. This is facilitated by the availability of analogue I/Os for temperature and 4...20mA/0...10V signals, as well as PID-Autotuning function blocks in the LogicLab programming tool.

  • Compact Design: Integrates both analogue and digital I/Os in a compact form factor.
  • High-Performance CPU: Equipped with an ARM CORTEX H7 480MHz microprocessor.
  • Programmable with LogicLab: Supports IEC 61131-3 standard programming with LogicLab.
  • Versatile Connectivity:
    • RS485 serial communication (Modbus RTU)
    • Ethernet communication (Modbus TCP)
    • CANopen communication
  • Expandable: Can be expanded with PLE500 I/O modules via an internal real-time bus on a DIN rail.
  • Remote I/O Capability: Supports MCM260X modules for remote I/O connections.
  • Industry 4.0 Ready: Supports Modbus TCP protocol for Industry 4.0 connectivity.
  • Secondary Logic Controller: Can be used as an I/O unit with Modbus TCP/RTU connectivity for secondary logics.
  • Temperature and Process Control: Features analogue I/Os for temperature and 4...20mA/0...10V signals.
  • PID-Autotuning: Includes PID-Autotuning function blocks in the LogicLab programming tool for precise control applications.

PL280 Specifications

Processor ARM Cortex H7 @ 480MHz
Memory Flash 2 Mb / RAM 1 Mb
Comm Ports 1x RS485 (1200..115200 Baud), 1x 10 / 100 Mbit/s Base-T (Modbus TCP master/slave), USB 2.0 for PLC logic files update.
Protocols Modbus RTU, CANopen, Modbus TCP/IP
Power Supply 12..24 V DC +/- 15%
Temperature inputs 4 x T/C type K, S, R, J, T, E, N, B. RTD type PT100, PT500, PT1000, Ni100, PTC1K, NTC10K (ß 3435K)
Memory USB
Analog inputs Potentiometer, mA, mV, Voltage
Analog outputs 2 x mA or Voltage
Digital inputs 8 PNP + 8 optional
Digital outputs 8 PNP + 8 optional
Encoder input 4x (Res. 32 bit, 80 KHz) Push Pull
Power consumption 5 W
Temperature Range 32°F +113°F 0°C +45°C
Humidity Range 35-95%
Housing DIN Rail
Dimensions 6.41" x 3.5" x 2.5", 162 x 90 x 64 mm
Weight 7 oz 250 g
EMC For industrial environments.
Immunity: EN 61000-6-2.
Emission: EN 61000-6-4.
Configuration LogicLab (IDE), standard IEC61131-3 (ST, IL, FBD, SFC, LADDER), cycle timing 4 mS

PL280-1AD Wiring Connections

Power Supply
Positive 24Vdc Terminal 1
Negative Terminal 2
Ground Terminal 3
Analog output 1
Voltage or mA + Terminal 4
Voltage or mA - Terminal 5
Analog output 2
Voltage or mA + Terminal 6
Voltage or mA - Terminal 7
PTO1 Terminal 8
PTO2 Terminal 9
Analog intput 1
Voltage, mA, T/C - Terminal 10
Voltage, mA, T/C + Terminal 11
RTD Common Terminal 10 and 11
RTD Terminal 12
Analog intput 2
Voltage, mA, T/C - Terminal 13
Voltage, mA, T/C + Terminal 14
RTD Common Terminal 13 and 14
RTD Terminal 15
Analog intput 3
Voltage, mA, T/C - Terminal 16
Voltage, mA, T/C + Terminal 17
RTD Common Terminal 16 and 17
RTD Terminal 18
Analog intput 4
Voltage, mA, T/C - Terminal 19
Voltage, mA, T/C + Terminal 20
RTD Common Terminal 19 and 20
RTD Terminal 21
Digital Outputs Terminal 22,23,24,25,26,27,28,29
Digital Outputs 24 Vdc Terminal 30
Digital Inputs 24Vdc Terminal 36,37,38,39,40,41,42,43.
Digital Outputs 24 Vdc Terminal 30
Digital Inputs 24Vdc/Outputs 24 Vdc Terminal 45,46,47,48,49,50,51,52.
Modbus RS485
A- Terminal 32
B+ Terminal 31
C Terminal 33
L Terminal 34
H Terminal 35


Compact PLC wiring diagram

PLE500-6AD Wiring Connections

Power Supply DIN RAIL
Analog In 0
Ground Terminal 13
Positive Terminal 14
Analog Out 1
Ground Terminal 13
Positive Terminal 15
Digital In/Out
L1 Terminal 4
In/Out QI.0 Terminal 5
In/Out QI.1 Terminal 6
In/Out QI.2 Terminal 7
In/Out QI.3 Terminal 8
In/Out QI.4 Terminal 9
In/Out QI.5 Terminal 10
In/Out QI.6 Terminal 11
In/Out QI.7 Terminal 12
L0 Terminal 16
In/Out QI.0 Terminal 17
In/Out QI.1 Terminal 18
In/Out QI.2 Terminal 19
In/Out QI.3 Terminal 20
In/Out QI.4 Terminal 21
In/Out QI.5 Terminal 22
In/Out QI.6 Terminal 23
In/Out QI.7 Terminal 24


Modular digital input output module wiring diagram

PLE500-8AD Wiring Connections

Power Supply DIN RAIL
Analog in 0
Thermocouple, Volts, mA
Positive Terminal 11
Negative Terminal 10
Positive Terminal 10
Negative and Common Terminal 11 and 12
Terminal 10 and 12
Current transformer
Terminal 7 and 8
Terminal 4 and 6
Wiper Terminal 5
Digital Output
Positive Terminal 2
Negative Terminal 1
Positive Terminal 3
Negative Terminal 1


Modular PLC with analog input output wiring diagram

Pixsys Electronics USA

Pixsys Electronics products are sold and supported by Datexel LLC in the USA.


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