Siemens SIMATIC ET 200S Manual page 241

Table 9-6
9
8 8
7
6 6
1L+
Block diagram
Figure 9-2
ET 200S Distributed I/O System
EWA-4NEB780602402-09
Terminal assignment of the IM151-1 STANDARD interface module
View
1 –
2 –
3 RxD/TxD-P
5 5
4 RTS
4
3 3
5 M5V2
2 2
1
6 P5V2
7 –
8 RxD/TxD-N
9
2L+ 1M 2M 1L+
2L+
1M
2M
ET 200S
back-
plane
bus
interface
module
Block diagram for the IM151-1 STANDARD interface module
Signal name
–
–
Data line B
Request To Send
Data reference potential (station)
Supply plus (station)
–
Data line A
24 VDC
24 VDC (for loop through)
Chassis ground
Ground (for loop through)
Isolation
BF ON
SF
Electronic
components
Internal power
supply
Interface Modules
Designation
PROFIBUS-DP
connection
A1
A2
B1
B2
PROFIBUS
address
2 (P1)
6 (P1)
3 (P2)
7 (P2)
9-11