Figure C-3. Digital I/O - Rear Panel Terminals; Table C-2. Digital I/O Connections - Thermo Scientific Omni FTIR Multi Gas CEMS Instruction Manual

Thermo Fisher Scientific
Table C–2. Digital I/O Connections
Digital No. Block Terminal
1 1
2 2
3 3
4 4
5 5
6 6
7 7 & 8
8 9 & 10
9 11 & 12
10 13 & 14
11 15 & 16
12 17 & 18
13 19 & 20
14 21 & 22
15 23 & 24
16 25 & 26
17 27
18 28
Figure C–3. Digital I/O - Rear Panel Terminals
Interfacing a DCS/PLC with the Omni FTIR Multi Gas CEMS
Description
Digital Input Ground
Gas Mode Input: Check Span
Gas Mode Input: Check Spike
Gas Mode Input: Check Zero
Gas Mode Input: Bkg & Flowback
Gas Mode Input: Blowback
Gas Mode Output: Check Span
Gas Mode Output: Check Spike
Gas Mode Output: Check Zero
Gas Mode Output: Background & Flowback
Gas Mode Output: Blowback
Gas Mode Output: Sample
FTIR Data Valid
Temperature Alarm
Maintenance Status Key Switch
N/C
N/C
N/C
Omni FTIR Multi Gas CEMS Instruction Manual
Establishing Communications
C-5