GRP-530M / GRP-540M User Manual
Version 1.2.0
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terminate by ISP, this parameter can
detect broken connection early. “Heartbeat Period”
must be smaller than “Data Update Period”.
(6) Baud Rate (RS-485 for Modbus/RTU): the baud rate of the RS-485 (COM3).
(7) Data bit: the data bit of RS-485.
(8) Parity: the parity bit of RS-485.
(9) Stop bit: the stop bit of RS-485.
(10) Modbus Timeout (ms): the Timeout value of Modbus.
(11) Enable Function: enable the RTU Client function.
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Modbus Device: the interface for adding Modbus I/O device.