Modbus RTU
All gateways support Modbus RTU over RS-485 in master mode.
RS-485
- Supported baud rates: 2400, 4800, 9600 (default), 19200, 38400, 57600, 115200
- Supported modes: 8N1 (default), 8O1, 8E1, 8N2
Data acquistion
Note
The below describes advanced capabilities of the gateways. In practice, configuring data acquistion is done by selecting a device model and interval from a dropdown on rayleighconnect™ online platform.
The gateway can be programmed to autonomously read a set of registers.
Reading interval can be configured:
- independently for each slave device
- independently for each group of registers (supported only on
RI-EC128-PRO
)
If required gateway can send initialization commands (eg. write to a register) before reading.
Up to 128 slave devices can be conntected to a single gateway.
RegOp commands
All gateways support sending complex Modbus commands.
Programmable actions
Data read from Modbus registers can be used in programmable actions.
See XVM for more information.