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iSMA-B-W0202


W0202 has been built to allow extension of RS485 bus using wireless technology wherever the use of network cable is impossible or unprofitable. Use of two W0202 allows building the wireless ‘bridge’ for the RS485 by building wireless remote island (one or more) for devices communicate via Modbus RTU / ASCII – eg. MIX series I/O modules or MINI series I/O modules. W0202 in addition to the RS-485 port and wireless port is equipped with 2xSI (Special Inputs) and 2xDO (Digital Outputs) which allow using the device as an I/O module or light controller communicating in Modbus RTU / ASCII . The implemented algorithm in the processor allows the user to choose one of 3 different modes:
- Modbus Bridge
- Modbus Bridge and I/O module (both DO work independent of the state of SI)
- Modbus Bridge and light controller (DO work in direct connection with SI) – there are 5 sub-modes of operation: Monostable Relay, Bistable Relay, Time Relay, Input Forwarding, Heating and Cooling.

W0202 is also equipped with a micro USB port which allows to configure the device without the use of an external power supply (the device is powered through the USB port). This solution gives you an easy way, using 2 laptops, carry out the tests within the existing facility.


Technical data

Inputs/Outputs

  • 2x Special Inputs (2SI)
  • 2x Digital Outputs (2DO)

Platform

  • Cortex-M3

Communication

  • Interface RS485 half-duplex
  • Up to 128 devices on the bus
  • Protocols: Modbus
  • Baud rate: 2400 to 115200 bps

Power supply

  • 24 V AC/DC

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