General Measure GM7702, Руководство пользователя

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GM7702 User Manual
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2.4 Serial Port Output
GM7702 weighing indicator possesses RS232 and RS485 serial port, which support
Modbus-RTU protocol, r-SP1,r-Cont and Chi mei PT650D protocol.
Communication parameters:
Item Option Description
1. serial port RS232
2. serial port RS485
ID No.
initial value: 01; range: 01-99.
baud rate
initial value: 38400; option: 9600, 38400,
57600, 115200.
data format
initial value: 8-E-1; option: 8-E-1, 8-O-1,
8-N-1, 7-E-1, 7-O-1.
communication
Initial value: Modbus-RTU; option:
Modbus-RTU, r-Cont,
Modbus-RTU(2),Modbus-ASCII , PT650D.
Modbus Hi-Lo
initial value: AB CD; option: AB CD(Hi-Lo), CD
AB(Lo-Hi)
sending interval
initial value: No interval; option: no interval,
10msec, 20msec, 50msec.
data sending interval in r-Cont mode
The serial port interface definition diagram is shown on the left
RS485 Connection mode: