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SICK LSI Technical Description - 06/98
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PLS
LSI
PC
Connecting LSI to a PC
Pin assignment of the interface connector in RS422 mode
NC
NC
PC
RXD–
RXD+
TXD+
TXD–
NC
NC
NC
NC
1
2
3
4
5
6
7
8
9
Pin no.
1
2
3
4
5
6
7
8
9
Pin no.
LSI-termination shield
connected to strain relief (enclosure)
LSI
RXD–
RXD+
TXD+
TXD–
Enclosure
NC
NC
jumpered
NC
8.3 Connecting the LSI to a PC
To configure your LSI system or change settings, you must
temporarily connect the PC to the LSI. For this, the LSI is fitted
with a switchable interface which permits you to connect the PC
and LSI quickly and easily.
•
Connect the LSI RS 232 interface (COM port) to a free
serial port on the PC. Use a RS 232/RS 422 interface cable
(see appendix, Accessories).
You can now configure your LSI system.
Notes:
The LSI RS 232 interface is set up for connection to a PC. If
required, you can reprogram it as a RS 422 interface by
jumpering pins 7 and 8. The RS422 LED on the LSI then lights
up to indicate the fact.
The pin assignment of a RS 422 interface is not standardized.
Compare the pin assignment of the connecting cable with the
one on the PC (see diagram) and adapt it accordingly.