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Valve outputs | Operating hours counter
Restarting the operating hours counter
The meter reading of the operating hours can be reset at any time by the communic-
ation object "Operating hours counter - Restart". The polarity of the reset telegram is
predefined: "1" = Restart / "0" = No reaction.
￭
Write "1" to the communication object "Operating hours counter - Restart".
In the up-counter the meter is initialised with the value "0" after a restart and in
the down-counter initialised with the start value. If no start value was con-
figured or predefined by the object, the start value is preset to 65,535 hours or
2147483647 seconds.
During every counter restart, the initialised meter reading is transmitted act-
ively to the bus. After a restart, the signal of a counter operation is also reset.
At the same time, a "0" telegram is transmitted to the bus via the object "Oper-
ating hours count. elapsed".
In addition, the limiting or start value is initialised.
If a new limiting or start value was predefined via the communication object, a
counter restart should always be performed afterwards, too. Otherwise, the
values received will be lost in the case of a bus voltage failure or by an ETS
download.
If a start or limiting value is predefined with "0", there are different behaviours
after a restart, depending on the principle of the value definition...
Preset as parameter:
The counter elapses immediately after a counter restart.
Preset via object:
A counter restart will be ignored to avoid an undesired reset (e.g. after installa-
tion of the devices with hours already being counted by manual operation). A
limiting or start value greater than "0" must be predefined in order to perform
the restart.
Transmission behaviour of the operating hours counter
The current value of the operating hours counter is always tracked in the communica-
tion object "Operating hours counter - Meter reading - Status". After bus voltage re-
turn or after an ETS download, the actuator passively updates the "Operating hours
counter - Meter reading - Status" communication object in each valve output. The ob-
ject value can be read out if the read-flag is set.
In addition, the transmission behaviour of this communication object can be set.
The use of the operating hours counter must be set on the parameter page "VOx –
General -> Enabled functions".
￭
Set the parameter "Transmission behaviour" to "on change by interval value".
Set the parameter "Counting interval" to the desired value.
The meter reading is transmitted to the bus as soon as it changes by the pre-
defined counting value interval. After bus voltage return or after an ETS pro-
gramming operation, the object value is automatically transmitted immediately
if the current meter reading corresponds to the counting interval or a multiple
thereof. A meter reading "0" is always transmitted in this case.
Heating actuator 6-gang with controller | Order no. 2139 00 | 21393100
Page 116 of 257
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