Siemens SIMATIC S5 Series Manual page 6

RS-422/485 (4 wire)
DIP Switch
1
2
3
4
5
6
7
8
9
10
RS-422/485 (2 wire)
DIP Switch
1
2
3
4
5
6
7
8
9
10
GP-Pro EX Device/PLC Connection Manual
Setting
OFF Reserved (always OFF)
ON
SIO type: RS-422/485
ON
OFF Output mode of SD (TXD) data: Always output
OFF Terminal resistance (220Ω) insertion to SD (TXD): None
OFF Terminal resistance (220Ω) insertion to RD (RXD): None
OFF Short-circuit of SDA (TXA) and RDA (RXA): Not available
OFF Short-circuit of SDB (TXB) and RDB (RXB): Not available
OFF
RS (RTS) Auto control mode: Disabled
OFF
Setting
OFF Reserved (always OFF)
ON
SIO type: RS-422/485
ON
OFF Output mode of SD (TXD) data: Always output
OFF Terminal resistance (220Ω) insertion to SD (TXD): None
OFF Terminal resistance (220Ω) insertion to RD (RXD): None
ON Short-circuit of SDA (TXA) and RDA (RXA): Available
ON Short-circuit of SDB (TXB) and RDB (RXB): Available
ON
RS (RTS) Auto control mode: Enabled
ON
6
SIMATIC S5 3964(R) Driver
Description
Description