INFICON I/O1000 I/O module - Manual (Page 9)

Description 9
Connection plug arrangement
The digital inputs can be freely configured.
► For other layouts, see installation manual for mass spectrometer module
LDS3000.
Key-operated switch
An external key switch with up to three switching outputs can be connected via three
PLC inputs. The key switch can be used to select the access level of the user of the
control unit.
Key 1 - Operator
Key 2 - Supervisor
Key 3 - Integrator
Example for a suitable key switch: Hop + Schuler, No. 444-05
2- RS232
Connection for RS-232
Electrical insulation (max. 60 V DC, 25 V AC against GND)
Connection plug arrangement
A normal RS-232 cable must be used for the connection (1:1 connection, RxD and
TxD not crossed, no zero-modem cable).
► Deactivate RS-232 hardware handshake in RS-232 control program.
Pin Name Factory setting mass spectrometer module
1 PLC-IN 1 Dyn CAL / Normal Cal
2 PLC-IN 2 SNIFF/VAC
3 PLC-IN 3 STOP
4 PLC-IN 4 ZERO
5 PLC-IN 5 EXT.CAL
6 PLC-IN 6 INT.CAL
7 PLC-IN 7 CLEAR
8 PLC-IN 8 -
9 PLC-IN 9 -
10 PLC-IN 10 -
11 PLC-IN-COM COM
Pin Name
2 TxD
3 RxD
5 GND