General Measure GMT-H1, Operating Instruction

Page: 8 / 45

5
the four-wire sensor;But for the application of long transmission distance
or high precision requirements should choose the six-wire sensor;
3.
When multiple sensors are connected in parallel, ensure that the
sensitivity (mV/V) of each sensor is the same.
2.3 Connection of communication Ports
The product supports one channel 485 and one channel RJ45 network
port communication, and supports Modbus-RTU/automatic
reporting/Modbus-TCP /IP protocols.Communication parameters (see
Section 8 for correspondence addresses)
A
seria
l
port
/
485
COM ID
Slave serial number used by serial port 1.Initial
value: 1. Parameter range: 1 to 247.
This only works if the communication protocol
has a slave number.
Baud rate
9600, 38400, 19200, 57600, and 115200 are
optional. Initial value: 38400
The data
format
Parameter range: 8-E-1, 8-O-1, 8-N-1, 7-E-1,
7-O-1 (data bit, parity bit, stop bit).Initial value:
8-E-1.
The Modbus RTU protocol can be 8-E-1,
8-O-1, or 8-N-1.
Communicati-
on protocol
Modbus RTU, automatic reporting. Initial
value: Modbus RTU