halstrup-walcher PUC 28, Instruction Manual

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Instruction Manual PUC 28
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Nr. Name
Format Unit Description
47
RelTime1
integer sec Response time for relay 1 (for exceedings)
48
RelTime2
integer sec Response time for relay 2 (for lower deviations)
49
RelAck
integer Relay acknowledgement
0 = off; 1 = on
50
DeviceAdr
integer Device address (only read access; is configured
with BCD switches at the device)
6.1.2 Commands for reading the measured values and the status values
With the help of these commands the actual measured values as well as other status values
can be read out. For the transfer of the messages, the same rules apply as for the commands
for configuration.
Nr. Name
Format Einheit Bedeutung
1
?IP
float Pa/hPa/mbar internal pressure
1)
2
?IN1
float °C/Pa/hPa/mbar Signal at IN-1
1)
3
?IN2
float %rH/Pa/hPa/mbar Signal at IN-2
1)
4
?ST
byte Status
Bit 0 = 0

Zero-point calibration is currently
not in progress
Bit 0 = 1

Zero-point calibration is currently
in progress
2)
5
?WARN
byte Warning Status
Bit 0: signal dropped below lower warning
value of IN-2 or signal is below bottom
measurement limit
Bit 1: signal dropped below lower warning
value of IN-1 or signal is below bottom
measurement limit
Bit 2: internal pressure dropped below lower
warning value
3)
Bit 3: internal pressure is below bottom
measurement limit
Bit 4: signal exceeded upper warning
value of IN-2 or signal is above upper
measurement limit
Bit 5: signal exceeded upper warning
value of IN-1 or signal is above upper
measurement limit
Bit 6: internal pressure exceeded upper
warning value
4)
Bit 7: internal pressure is above upper
measurement limit
1)
The transfer is carried out with the actually configured unit with the full internal accuracy. If
the measured value is outside the measurement range, the answer contains an error code
(see section 6.2).
2)
During a zero-point calibration the received measured values are not valid.
3)
Consider bit 3 additionally.
4)
Consider bit 7 additionally.