Sinexcel Modbus Application; Modbus Tcp/Ip - Sinexcel SVG 100 Ultra User Manual

SINEXCEL MODBUS APPLICATION

MODBUS is an application layer protocol and is widely used in industrial control. It is the de facto industry
standard. Sinexcel provides both MODBUS RTU and TCP/IP communication. RTU is realized by RS485
interface
and TCP/IP by Ethernet port. Using Modbus, customers can realize the following functions:
Acquire the status and alarm information;

Acquire data like analog value, waveform, histogram, and manufacturer information;

Set the parameters of the device. For more details, please refer to the Sinexcel Modbus protocol.

Physical Connection
Following is instructions on establishing connection between PC and modules via MODBUS

MODBUS TCP/IP

For LCD modules, Ethernet connection is optional. An extra dry contact board is needed. For 7-inch HMI, the
Ethernet port is on the side of it. Ethernet connection has two types:
Monitor connects with PC directly via reticle
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1. Make sure the reticle is firmly connected with the monitor. After the reticle is successfully connected, the
green LED.
2. Set the IP address and Subnet Mask manually on the monitor. Make sure they are on the same network
segment with the PC.
3. Ping the address.
4. After successfully Ping the address, use the software modbuspoll for debugging. To establish the
connection, the IP address should be the one of monitor and the
Figure A- 49 Monitor connects with PC directly via reticle
Figure A- 50 Connecting
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