I/O Modules – Wireless

//I/O Modules – Wireless

I/O Modules – Wireless



W0202 has been built to allow extension of RS485 bus using wireless technology wherever use of network cable is impossible or unprofitable. Use of two W0202 allows to build 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 to use device as an I/O module or light controller communicating in Modbus RTU / ASCII . Implemented algorithm in the processor allows user to choice 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 3 sub–modes of operation: Monostabile Relay, Bistable Relay, Time Relay.

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.

2xSpecial Inputs (2SI)

All special inputs have 12bit resolution which support the following types of inputs:

  • Temperature input support the following types of sensors:
    10K3A1, 10K4A1, Carel 10K, 20K6A1, 2.2K3A1, 3K3A1, 30K6A1, SIE1, TAC1, SAT1: accuracy ± 0,1°C at 25°C
  • Voltage input 0-10 V DC: input resistance 100 kΩ accuracy ±0,5%
  • Current input 0-20 mA (external resistor 499Ω required)
  • Resistive input 0-1000 kΩ: measurement resolution for 20 kΩ load 20 Ω
  • Dry contact input
  • Fast pulse counter up to 100 Hz save in EEPROM memory
2xDigital Outputs (2DO)
  • Relay output (NO) max. 3 A, 230 V AC/30 V DC
  • Cortex-M3
Power supply
  • 24 V AC/DC
  • Interface RS485 half-duplex
  • Up to 128 devices on the bus
  • Protocols: Modbus
  • Baud rate: 2400 to 115200 bps
  • Dimension: 17,5x110x62 mm
  • Construction: plastic, self-extinguishing (PC/ABS)
  • DIN rail mounting (DIN EN 50022 norm)
  • Cooling: internal air circulation
  • Operating temperature: -10°C to 50°C
  • Storage temperature: -40°C to 85°C
  • Relative humidity: 5 to 95%, no condensation
  • Ingress Protection Rating: IP40 – for indoor installation