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en:hiq_hw:wm-1

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Wireless Modbus-to-Modbus bridge

Wireless Modbus-to-Modbus bridge

Model number: WM-1
Frequency: ISM 868MHz (EU)
Dimensions: 93x45x27 mm

Applications

  • Replacement for RS485 wiring solution with wireless. Optimal for long range Modbus RTU serial communications with half duplex configuration.

Installation

  • :!: Carefully open WM-1 module and configure serial communication with jumpers. (Default configuration is 9600bps, 8N1 with normal timeout)
  • :!: Place WM-1 module at least 10cm from other objects. Installation is not recommended inside metal cabinets.
  • Connect RS485 terminals to WM-1 RS485 terminals
    • A - A
    • B - B
    • C - GND
  • Connect to 230V power supply
  • Configure radio pairing

Features

  • replacement for RS485 wiring
  • Modbus RTU serial protocol
  • wired/wireless combinations
  • very long range, no hopping
  • protected private connection
  • multiple slaves per device
  • multiple addressable groups

Technical specification

Power supply: 230V, 50/60Hz, 1W
Ingress protection: IP20
Operating temperature: -20..50°C
Storage temperature: -40..85°C
Relative humidity: 0..85% n/c

Terminals and wiring

To power sensor A RS485 bus
B
C
To power supply L 230V AC
N

Radio configuration

Create new secure group

* turn on all devices as the same time
* within 10 seconds, while RF LED is blinking, press and hold button on one of the devices
* after a second, the new address is randomly generated and sent to all devices. RF LED will blink 3 times to confirm the new address.

en/hiq_hw/wm-1.1634737254.txt.gz · Last modified: 2021/10/20 13:40 by neoxy