IFM SU9020, Руководство по эксплуатации

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SU2020 SU2021 SU2621 SU8020 SU8021 SU8621 SU9020 SU9021 Ultrasonic flow meter
28
Signal quality Explanation
Operating status
LED
Switching output
Normal The unit operates without restrictions (normal operation). Lights green On
Low The signal quality is disturbed, but the unit is still work-
ing within its specifications. Lights blue OFF
No signal No medium is present or no signal can be created. Flashes red OFF
Parameter setting via unit keys: switching signal for signal quality
u
Go to the [EF] > [OUTx] menu.
u Select [oux] > [dOU] and set [Sig.Q].
Parameter setting via IO-Link: switching signal for signal quality
u
Call up [Parameters] > [Output Configuration].
u
Select [oux] and set [dOU].
u
Select [dFUx] and set [Signal quality detection]
10.3.3 Consumed quantity monitoring (totaliser function)
The unit has 3 internal quantity meters (totalisers Vol.1, Vol.2 and Vol.L). The totalisers continuously
sum up the consumed quantity and provide this process value both on the display and via the IO-Link
interface.
Totaliser Process value Read access via IO-Link
Vol.1 Consumed quantity 1
(This value is used for consumed quantity monitoring by
switching or pulse signals) Cyclic
Vol.2 Consumed quantity 2 Acyclic
Vol.L Consumed quantity over the whole lifetime (lifetime totalis-
er) Acyclic
The totalisers Vol.1 and Vol.2 take account of the flow direction when totalising the consumed
quantity:
Counting method of the totalisers ( Ò / 40) .
OUT1 and OUT2 cannot be used simultaneously for the consumed quantity monitoring.
In addition to the current consumed quantity, the value before the last reset is saved. This value and
the time since the last reset can also be displayed.
The totaliser saves the totalled volumetric flow quantity at regular intervals. After a power failure
this value is available as the current meter reading. If a time-controlled reset is set, the elapsed
time of the set reset interval is also saved. This means that the possible data loss can amount
to one minute.
See also: Read totaliser values (
Ò /
46) .
The accuracy of the consumed quantity measurement depends on the accuracy of the volumetric flow
measurement.
A switching signal or pulse signals can be provided for consumed quantity monitoring.
• See Switching signal totaliser ( Ò / 28)
• See Pulse signal totaliser (
Ò /
29)
10.3.3.1 Switching signal totaliser
A switching signal can be provided for consumed quantity monitoring.