Instruction Manual PUC 28
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7.4 Setting the parameters of the PUC 28 as a Profibus slave
The following parameters of the PUC 28 Profibus slave are sent automatically to the PUC after
the Profibus connection has been established by the master. No menu settings are necessary
for this. After the Profibus connection has ended, the device returns automatically to the state
of a pure measurement device. However, the Profibus parameters are stored in the device.
Parameter
Description
Sound (ein/aus)
Activate or deactivate the acoustic signalling device
Relay assignment
see section 5.5.1 entitled “Switching conditions and
relay test [ RELAY / COND. TEST ]”
Time for relay x (sec.)
Response time for the relay in seconds
Measurement range
100Pa or 250Pa; see section 5.2.3 entitled
“Measurement range of the internal pressure
sensor [ SETTINGS / MEAS. RANGE ]”
Relay acknowledgement
Switch relay acknowledgement on or off
Voltage or current
Select between voltage (0-10 V) or current (0-20
mA, 4-20 mA) for the analogue channels
External pressure
External pressure at the IN ports
Display
Specify the pressure units and whether to blank the
individual lines or not
Language
Select the language (D or GB)
Decimal places
Activate or deactivate
Sound length (in 50 msec)
Set the pulse duration and separation of the
acoustic signalling device (n x 50 msec)
(Ex. “40” → 2 seconds)
Scaling (upper) …
Set the upper scale value
(each with a factor of 10)
Example for IN2 (humidity) ([1/10]%rH):
“1000” → 100.0 %rH
Scaling (lower) …
Set the lower scale value
(each with a factor of 10)
Example for IN2 (humidity) ([1/10]%rH):
“10” → 1.0 %rH
Warning (upper) …
Set the upper limit
(each with a factor of 10)
Example for internal pressure ([1/10]Pa):
“1000” → 100.0 Pa
Warning (lower) …
Set the lower limit
(each with a factor of 10)
Example for internal pressure ([1/10]Pa):
“-1000” → -100.0 Pa
Hyst. …
Set hysteresis
(each with a factor of 10)
Example for IN1 (temperature) ([1/10]°C):
“100” → 10.0 °C
Filter duration (x) (msec)
Filter time in msec, see section 5.4 entitled “Filter
setting”
Table 22: Parameters of the slave PUC 28