Interface Allocation Mobile Panel 177 Dp; Rs 485 (If 2); Rj45 - Siemens SIMATIC HMI 177 Operating Instructions Manual

6.3

Interface allocation Mobile Panel 177 DP

6.3
6.3.1

RS 485 (IF 2)

Sub-d socket, 9-pin, with screw lock
Figure 6-4
6.3.2

RJ45

RJ45 connector for the connecting cable
Figure 6-5
Mobile Panel 177 (WinCC flexible)
Operating Instructions (Compact), Edition 07/2005
RS 485 interface pin assignment
PIN
1
2
3
4
5
6
7
8
9
Pin assignment of the RJ45 connector
PIN
1
2
3
4
5
6
7
8
6.3 Interface allocation Mobile Panel 177 DP
Assignment
n. c.
GND 24 V
Data channel B (+)
n. c.
GND 5 V, floating potential
+5 V DC, floating potential
+24 V DC, out (max. 100 mA)
Data channel A (–)
n. c.
Assignment
RxD-B
RxD-A
CTS-B / ID-
RTS-B / IC-
RTS-A / IC+
CTS-A / ID+
TxD-B
TxD-A
Specifications
6-9