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8017171/115Z/V3-0/2019-01/ SICK OPERATING  INSTRUCTIONS | VISIC100SF
Subject to change without notice
INSTALLATION
3.7.4.4 Coding of visibility measured value status
Every VISIC100SF measured value has a measured value status. This measured value 
status provides additional information on the status of the measured value. The following 
Tables show the measured value status coding and significance.
Table 13: Coding of measured value status of visibility
Table 14: Coding of measured value status of temperature sensor
Table 15: Coding of measured value status of gas cells
Priority Status K-value, dust
Status byte 
PROFIBUS/ 
Modbus
Status byte designation
Maintenance 
request
Device 
fault
4… 20 mA
1 No error active 0x80 Good - OK Inactive Inactive Value
2
Measured value 
dynamic below limit 
value
0xA4 Good - maintenance required Active Inactive Value
3
Contamination 1
st
 
level
0xA4 Good - maintenance required Active Inactive Value
4
Measuring range 
overflow
0x68  Uncertain - high limit Inactive Inactive 23 mA
5
Contamination 2
nd
 
level
0x68
Uncertain - maintenance 
demandedU
Active Active 1 mA
6 Error μC 0x79 Bad - maintenance alarm Inactive Active 1 mA
7 Threshold LED 0x24 Bad - maintenance alarm Inactive Active 1 mA
8 Error FPGA 0x24 Bad - maintenance alarm Inactive Active 1 mA
Priority
Status temperature 
sensor
Status byte 
PROFIBUS/ 
Modbus
Status byte designation
Maintenance 
request
Device 
fault
4… 20 mA
1 No error active 0x80 Good - OK Inactive Inactive Value
2
Measuring range 
underflow
0x79 Uncertain - low limit Active Inactive 1 mA
3 Sensor error 0x24 Bad - maintenance alarm Active Inactive 1 mA
4 Error μC 0x24  Bad - maintenance alarm Active Inactive 1 mA
- Sensor not activated 0x23 Bad - passivated Inactive Inactive 1 mA
Priority Status gas cell
Status byte 
PROFIBUS/ 
Modbus
Status byte designation
Maintenance 
request
Device 
fault
4… 20 mA
1 No error active 0x80 Good - OK Inactive Inactive Value
2 Sensor test running 0xBC Good - internal function check Inactive Inactive Value
3
Operating hours 1st 
level
0xA4
Good - maintenance 
required
Active Inactive Value
4
Operating hours 2nd 
level
0x68 
Uncertain - maintenance 
demanded
Active Active 1 mA
5
Measuring range 
overflow
0x7A Uncertain - high limit Inactive Active 23 mA
5
Measuring range 
underflow
0x79 Uncertain - low limit Inactive Active 1 mA
6
Start / heating up 
time
0x3C Bad - function check Inactive Active 1 mA
7 Hardware error / cell 0x24 Bad - maintenance alarm Inactive Active 1 mA
8Error μC 0x24 Bad - maintenance alarm Inactive Active 1 mA
- No cell present 0x23 Bad - passivated Inactive Inactive 1 mA