General Measure GMT-H1 Operating Instruction page 29

In the serial port parameter area, the following contents are read/write
bit status (read function code is 0x03, write function code is 0x06)
8000 48001
8001 48002
8002 48003
8003 48004
8004 48005
8005 48006
8006-8099. 48007-48100.
In the network port parameter area, the following contents are read/write
bit status (read function code is 0x03, write function code is 0x06)
8100 48101
8101 48102
8102 48103
8103 48104
8104 48105
8105 48106
RS485 from
immediately
RS485 baud
rate
RS485
protocol
RS485 data
format
RS485 duplex
mode
RS485
continuous
transmission
interval
The reserved
Network port
communication
mode
Network port high
and low bytes
Network port
Sending interval
IP address
segment 1 of the
network port
IP address
segment 2 of the
network port
IP address
26
Initial value: 1. Parameter
range: 1 to 254
Initial value 0:38 400
0:38 400/1:48 00/2:9 when
good, 5200, 600/600/200/4:57
and optional
Initial value: 0:modbus RTU
Zero: the modbus RTU; 1:
Automatic reporting
Initial value:
0:8-E-1.Parameter range:
0:8-E-1; 8 - O - 1;"- N -
1;Then - E - 1; 4:7-O-1
(meaning: data bit - parity -
stop bit)
Initial value: H-L.Zero: H
- L;1:L-H
Scope: 0 ~ 9999
Zero: the modbus
TCP/IP;1: Automatic
reporting
0: h-L 1: L-h, initial value:
0
Scope: 0 ~ 9999
IP address.Initial value:
192.168.101.246
parameter
0.0.0.0
255.255.255.255
This
ranges from
to