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Protocol description

The module contains: 

- 2 analog inputs measuring voltage in range from -15 to +15 volts (with +-0.15V accuracy);

- 2 "open collector" discrete outputs (max current 100mA).

Modbus functions: read inputs voltage, read output state (on/off), change output state, change port baudrate, set module address.

• Size: standard DIN rail 51 mm wide enclosure (51x116(including connectors)x68 mm).
• Power supply/power consumption: voltage - 12V, current - 50mA (module consumption).
• Memory: non-volatile memory chip for settings.
• Connection: screw connectors.
• Modbus address: (can be changed by Modbus command) 0...255 (default address: 0x01).
• Baudrate: (can be changed by Modbus command) 2400, 4800, 9600, 19200, 28800, 38400, 56000, 57600, 115200, 128000, 256000 (default is 9600).
• Port settings: 8n1