User Manual
Modbus TCP/EtherNet IP Gateway
GT200-MT-EI
WWW.SSTCOMM.COM
7
2.2 Ethernet Interface
Ethernet interface uses RJ-45 connector, 10/100M self-adaptive.
Pin
Signal Description
S1
TXD+, Tranceive Data+, Output
S2
TXD-, Tranceive Data-, Output
S3
RXD+, Receive Data+, Input
S4
Bi-directional Data+
S5
Bi-directional Data-
S6
RXD-, Receive Data-, Input
S7
Bi-directional Data+
S8
Bi-directional Data-
2.3 DIP Switch
The DIP switch is located at the bottom of the gateway, bit 1 is mode bit and bit 2 is function bit.
Off
On 1 2
Mode (bit 1)
Function (bit 2)
Description
Off
Off
Run mode, allow reading and writing configuration data
Off
On
Run mode, forbid reading and writing configuration data
On
Off
Configuration mode, IP address is 192.168.0.10 (fixed),
this mode can read and write configuration data but cannot
finish communication between EtherNet/IP and Modbus
TCP
On
On
Reserved