Isa100 Wireless ™ Standard Objects; Measured Value Status(Pv_Status) - Dräger Polytron 6100 EC WL Gebrauchsanweisung

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Troubleshooting
11.1 ISA100 Wireless
Display Access
PV READ
PV READ
PV READ
PV READ
PV READ
DIAG_STATUS READ
DIAG_STATUS READ
DIAG_STATUS READ
DIAG_STATUS READ
11.2

Measured value status(PV_STATUS)

Meaning of "Quality" (Bit 6 and 7):
0: Bad (Bad) – No measured value transmission.
1: Uncertain (Uncertain) – Measured value quality lower than normal.
2: Good (Good) – Measured value quality good, but alarm condition could be present.
Quality Substatus
Bits 6 and 7 Bits 2 to 4
0 0
0 1
44
™
standard objects
Byte no.
1
2
3
4
5
1
2
3
4
PV Cause
NaN Start sequence active.
Start sequence failed, no EC sensing head
detected.
NaN Sensor lock feature is enabled. A sensor with a
different part number was inserted.
Instructions for use
Content Modbus input register
PV_Status Register N
PV_Value (1/4)
Register N+1
PV_Value (2/4)
PV_Value (3/4)
Register N+2
PV_Value (4/4)
Diag_Status (1/4)
Register M
Diag_Status (2/4)
Diag_Status (3/4)
Register M+1
Diag_Status (4/4)
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Dräger Polytron 6100 EC WL, Dräger Polytron
Data type
UINT (16 bit)
32-bit float (4 bytes),
Float32 acc. to IEEE 754
UINT (16 bit)
UINT (16 bit)
Remedy
Wait for start sequence.
A Restart the gas detector.
B Have the gas detector checked by DrägerSer-
vice.
Use a sensor with the same part number or dis-
able the sensor lock feature.
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Repeater ISA