Siemens SINAMICS DCM Operating Instructions Manual page 165

Serial interface to AOP30/USS interface
Table 6- 31 Terminal X178
Terminal Function
X178
1 Supply (output)
2 Ground, AOP M
3 RX+/TX+
4 RX-/TX-
5 Ground, digital M
6 Ground, digital M
Module C98043-A7100-L1/L2, Standard/Advanced CUD
Table 6- 32 Terminal X179
Terminal Function
X179
1 Supply (output)
2 Ground, digital M
3 TXD1
4 RXD1
5 TXD2
6 RXD2
Module C98043-A7100-L1/L2, Standard/Advanced CUD
Note:
Only one of the two interfaces - RS485 (X178-3, 4) or RS232 (X179-3, 4) - may be used.
Figure 6-49 Arrangement X178 and X179
SINAMICS DCM DC Converter
Operating Instructions, 1.2012, C98130-A7066-A1-05-7619
6.9 Assignment of terminals and connectors
Technical data
24 VDC short-circuit proof, maximum load 200 mA
Internal supply related to internal ground terminal
Send and receive cable, RS485, two-wire
Positive differential input/output
Send and receive cable, RS485, two-wire
Negative differential input/output
Technical data
4.4 to 5.4 VDC short-circuit proof, maximum load 300 mA
Internal supply related to internal ground terminal
Send cable, RS232 standard (V.24)
Receive cable, RS232 standard (V.24)
Send cable, RS232 standard (V.24)
Receive cable, RS232 standard (V.24)
1 2 3 4 5 6
1 2 3 4 5 6
Connecting
163