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D1700M Modbus Digital I/O Module

Overview   Specifications   Product Photos

The D1701M and D1702M digital input/output modules contain seven digital inputs and eight digital outputs.

The digital inputs will accept a set of contacts to ground and contain an internal pull-up resistor to +5Vdc.

The digital output bits are open-collector transistors that will sink up to 30mA and can be pulled up to +30Vdc max.

The modules can communicate using either the DGH ASCII protocol or the Modbus RTU protocol. Only one protocol can be active at a time.

Because the Modbus protocol does not support Echoing, the D1701M modules are limited to one module per serial port. Applications requiring more than one module should use RS485.

The D1700M Modbus series modules can also be mounted on a DIN-Rail using the MK-1 mounting kit.
Digital Inputs
7 Digital Inputs.
Input Levels: +/-30Vdc.
Input High level, 3.5V min.
Input Low Level, 1.0V max.
Internal Pull up resistors.
Digital Outputs
8 Digital Outputs.
Open-collector to 30Vdc.
Max Load: 30mA per bit.
VSat: 0.2Vdc @ 30mA.
DGH ASCII or Modbus RTU Protocol.
Baud Rate: 300-115,200.
247 modules per port (Modbus RTU Protocol).
Parity: Odd, Even, None.
Click to enlarge Click to enlarge
Typical RS-232 Module Typical RS-485 Module
D1701M, D1702M Documentation

  Data Sheet     Accessories
  Users Manual     Utility Software
  Register Map     App Software
  Modbus Functions     DIN-Rail Mounting
  Command Set     LabVIEW
D1700M Digital I/O Modules
  D1701M 7 Inputs, 8 Outputs, RS-232 Buy Now
  D1702M  7 Inputs, 8 Outputs, RS-485 Buy Now
D1700M Series Accessories
  CA-3 RS-232 Serial Cable, 9 Pin-F to tin leads
  MK-1 DIN-Rail Mounting Kit
  PS-3 +24.0Vdc @ 0.42 amps
100-240VAC, Wall Mount Power Supply
  Kepware KepServer OPC Software
  A1000-115 AC Powered, 115VAC, RS-485 Converter
All prices are quoted in U.S. dollars.
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