Siemens SIMATIC S7-200 System Manual page 484

S7-200 Programmable Controller System Manual
S7-200 USB/PPI Multi-Master Cable
To use the USB cable, you must have STEP 7--Micro/WIN 3.2 Service Pack 4 (or later) installed. It
is recommended that you use the USB cable only with an S7-200 CPU22x or later. The USB
cable does not support Freeport communications or downloading the TP Designer to the TP070.
Table A-71 S7-200 USB/PPI Multi-Master Cable - - Pin-outs for the RS-485 to USB Series "A" Connector
RS-485 Connector Pin-out
Pin Number
1 No connect
2 24 V Return (RS-485 logic ground)
3 Signal B (RxD/TxD+)
4 RTS (TTL level)
5 No connect
6 No connect
7 24 V Supply
8 Signal A (RxD/TxD--)
9 Protocol select (low = 10 bit)
Figure A-45 shows the S7-200 USB/PPI Multi-Master Cable dimensions and LEDs.
Figure A-45 S7-200 USB/PPI Multi-Master Cable Dimensions and LEDs
470
Signal Description
0.8 m
USB COMM
LED Color
Tx Green
Rx Green
PPI Green
USB Connector Pin-out
Pin Number
1 USB -- DataP
2 USB -- DataM
3 USB 5V
4 USB logic ground
130 mm
51 mm
RS-485 COMM
Description
USB transmit indicator
USB receive indicator
RS-485 transmit indicator
Signal Description
4.7 m