Laser beta lasermike LS8000-3 - Manual (Page 57)

LaserSpeed 8000-3 Instruction Handbook
Interfacing with the LS8000-3
Part No. 93463 / Drawing No. 0921-01561 Page 57 of 221 Revision A (Sep 2007)
Transmit
Receive
Pin 1 (TX+)
Pin 2 (TX-)
Pin 3 (RX+)
Pin 4 (RX-)
Computer/PLC
RX+
RX-
TX+
TX-
100 Ω
Cable Jacket
Cable Shield
RS-422 Cable
Shielded,
Two Twisted 100 Pairs
Ω
Drain Wire/Shield
RS-422 Serial Pinouts
Gauge DB9
Pin Number Gauge Signal
Description Computer Pin
Number Computer Signal
Description
1 RS422 Transmit + varies RS422 Receive + (B)
2 RS422 Transmit - varies RS422 Receive – (A)
3 RS422 Receive + varies RS422 Transmit + (B)
4 RS422 Receive - varies RS422 Transmit – (A)
5 Signal Ground varies Signal Ground
The computer RS-422 pinout can vary with the RS-422 card used. The signal
descriptions listed above should be matched to the signal descriptions listed in
the documentation provided with the RS-422 adapter.
Analog Output Voltage/Ground (Pins 6-7)
Analog Output Specifications
Voltage Range 0-2V
Resolution 12-bit
Minimum ∆V (Step Size) 0.5mV
Load 1k Ω minimum
Filtering 0.1 µF Capacitor
Recommended across
Output to Signal Ground