User`s manual
SH-300 Text Panel
Page 72 of 103
4.11 AB (AB-DF1 protocol) Series
SH-300 can communicate with the Allen-Bradley series PLC via AB-DF1 Protocol, the
communication port is the programming port of PLC
SH-300 software configuration:
Item Content
SH-300 COM port 9 pin COM port
PLC COM port Programming port
Default parameter
9600bps、8bits、1stop、None
Station No. 1 (1 is fixed and can’t be changed)
Distance (Max.)
15m
Communication mode
RS232
Cable type Special cable
Inner relay address B3/9/10/11/12/13: 0-254
Register address N7/9/10/11/12/13/14/15: 0-254
Connection guidance of Special cable
2 RXD
4 RXD
SH-300 side 3 TXD 7 TXD PLC side
9 pin D shape 8pin Round shape
Female plug male plug
5 GND 2 GND
(when SH-300 communicates with Allen-Bradley (AB-DF1 Protocol) series PLC you are
recommended to use the programming cable )
The picture for 8 pin Round shape
Female plug