4-channel Isolated Digital Input and 4-channel Source Type Isolated Digital Output Module


4-channel Isolated Digital Input and 4-channel Source Type Isolated Digital Output Module

  Price:  $149.00  


tmP4A4 PINThe tM-P4A4 provides 4 channels for digital input and 4 channels for digital output, each of which features photocouple isolation. The tM-P4A4 supports source type output with short circuit protection, while input is sink type. All input channels can be used an 16-bit counters. There are options for configuring power-on and safe digital output values. 4 kV ESD protection and 3750 VDC intra-module isolation are also provided.

  • Digital Outputs Source Type
  • Digital Inputs Sink Type
  • Photocouple Isolation
  • All Channels Can Be Used As 16-bit Counters
  • Dual Watchdog
  • Confi gusable Power-on Value Settings
  • Confi gusable Safe Value Settings
  • Cost-effective
  • Wide Operating Temperature Range: -25°C ~ +75°C


  • All kinds of On/Off Control
  • Industry Automation
  • Industrial Machinery
  • Building Automation
  • Food & Beverage Systems
  • Semiconductor Fabrication
  • Control Systems


Interface RS-485
Format (N, 8, 1), (N, 8, 2), (O, 8, 1), (E, 8, 1)
Baud Rate 1200 ~ 115200 bps
Protocol DCON, Modbus/RTU, Modbus/ASCII
Dual Watchdog Yes, Module (2.3 second),
Communication (Programmable)
LED Indicators
Power 1 LED as Power Indicator
Intra-module Isolation,Field-to-Logic 3750 VDC
EMS Protection
ESD (IEC 61000-4-2) ±4 kV Contact for each terminal,
±8 kV Air for random point
EFT (IEC 61000-4-4) ±4 kV for Power
Power Requirements
Reverse Polarity Protectionn Yes
Powered from terminal block Yes, 10 ~ 30 VDC
Consumption 0.5 W max.
Dimensions (W x L x H) 52 mm x 98 mm x 27 mm
Installation DIN-Rail Mounting
Operating Temperature -25 ~ +75°C
Storage Temperature -30 ~ +75°C
Humidity 10 ~ 95% RH, non-condensing

I/O Specifications

Digital Input/Counter
Input Channels 4
Type Wet Contact (Sink)
On Voltage Level +3.5 VDC ~ 50 VDC
Off Voltage Level +1 V max.
Input Impedance 10 KΩ, 0.66 W
Counters Channels 4
Max. Counts 65535 (16-bit)
Max. Input Frequency 100 Hz
Min. Pulse Width 5 ms
Overvoltage Protection 70 VDC
Digital Output
Output Channels 4
Type Isolated Open Collector (Source)
Max. Load Current 650 mA/channel
Load Voltage +10 VDC ~ +40 VDC
Overvoltage Protection 47 VDC
Overload Protection Yes
Short-circuit Protection Yes
Power On Value Yes, Programmable
Safe Value Yes, Programmable

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