0/4-20 Ma Monitoring - Siemens SIMOCODE pro System Manual

5.6

0/4-20 mA monitoring

Description
With the aid of an analog module, SIMOCODE pro is capable of measuring
and monitoring further process variables as desired.
For example, the fill level can be monitored to protect a pump against dry
operation, or a differential pressure transducer can be used to monitor the
degree of pollution in a filter. If the fill level undershoots a specified level,
the pump can be switched off and, if a specific differential pressure value is
exceeded, the filter must be cleaned.
Analog input 1 of the
analog module
(AM Input 1)
Fig. 5-7: "Monitoring 0/4-20 mA" function block
SIMOCODE pro
GWA 4NEB 631 6050- 22 DS 03
Monitor 0/4-20 mA
Trip level 0/4-20 mA >
Trip level activity
Response at trip level
Trip delay
Marking trip level
Warning level 0/4-20 mA >
Warning level activity
Response at warning level
Warning delay
Marking warning level
Trip level 0/4-20 mA <
Trip level activity
Response at trip level
Trip delay
Marking trip level
Warning level 0/4-20 mA <
Warning level activity
Response at warning level
Warning delay
Marking warning level
Hysteresis
Monitoring functions
QE1
QE2
QE3
Tripping
QE4
QE5
See
Event
Table 5-13
- Trip level
0/4-20 mA >
See
Event
Table 5-14
- Warning level
0/4-20 mA >
See
Event
Table 5-13
- Trip level
0/4-20 mA <
See
Event
Table 5-14
- Warning level
0/4-20 mA <
5-15