User`s manual

SH-300 Text Panel

Page 62 of 103

4.2 Siemens S7-200 Series

SH-300 can communicate with the programming port or external communication port of Siemens

S7-200 series through PPI protocol.

SH-300 software configuration:

Item

Content

SH-300 COM port RS485 COM port

PLC COM port Programming port/ external communication port

Default parameter

9600bps、8bits、1stop、Even

Station No. 2-126 ,2 is Windows default

Distance (Max.) 100m (twisted-pair)

Communication mode RS485

Cable type Special cable

Inner relay address M0.0-M31.7

Connection guidance of Special cable

1 TD+

SH-300 side

9 RD+ 3 A

PLC side

9 pin D shape

6 TD- 8 B

9 pin D shape

Female plug

8 RD-

male plug

( when SH-300 communicates with S7-200 series PLC you are recommended to use the program

the programming cable )