28
8011703/XF49/2019-09| SICK
O P E R A T I N G I N S T R U C T I O N S | VICOTEC320
Subject to change without notice
5
INSTALLATION
Fig. 17: I/O modules and circuit diagram of analog modules without CO and NO
x
-inlets/outlets
Relay 4
Operation/fault for CO (option)
●
Operation: Relay is open
●
Fault: Relay is closed
Input 1
Maintenance mode (measured values frozen)
Input or output
Assignment
13
23
1
2
3
4
State
Digital
Output
Signal
Relais
DO1 DO2
DO3 DO4
State
Digital
Input
DI1 DI2
DI3 DI4
1
2
3
4
State
Analog
Output
0...20mA
Load
500
Ω
Shield
AO1 AO2
- -
1
2
State
Analog
Output
0...20mA
Load
500
Ω
Shield
AO1 AO2
- -
1
2
14
24
11
21
12
22
13
23
14
24
11
21
12
22
13
23
14
24
11
21
12
22
13
23
14
24
11
21
12
22
I Analog Out
II Analog Out
III Digital Out
IV Digital In
Visi
Visibility -
Tempe
internal
external
Temperature -
Operation/Fault
Maintenance call
Maintenance
Not used
Not used
Not used
Not assigned
Not in measuring
mode
I - 11
I - 12
I - 21
I - 23
NO +
NO -
NO2 +
NO2 -
II - 11
II - 12
II - 21
II - 23
III - 11
III - 12
III - 22
III - 21
III - 14
III - 13
III - 23
III - 24
IV - 11
IV - 12
IV - 21
IV - 22
IV - 13
IV - 14
IV - 21
IV - 22
I
II
III
IV