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Valve outputs | Operating hours counter
The meter counts the operating hours forwards starting from "0 h". If the monit-
oring of the limiting value is activated, the actuator transmits a "1" telegram via
the object "Operating hours count. elapsed" for the valve output concerned
once the predefined limiting value is reached. Otherwise, the counter opera-
tion is first transmitted when the maximum value is reached.
￭
Set the parameter "Counting direction" to "Backward". Set the parameter
"Specify start value" to "via parameter" or "via object" if it is necessary to spe-
cify a start value. Otherwise, reset the parameter to "no". In the "via para-
meter" setting, configure the required start value (1 ... 2147483647 s or
1 ... 65535 h).
The meter counts the operating hours down to "0 h" after a restart. With a start
value preset, the start value is counted down, otherwise the counting operation
starts at the maximum value. The actuator transmits a "1" telegram via the ob-
ject "Operating hours count. elapsed" for the valve output concerned once the
value "0" is reached.
The value of the communication object "Operating hours counter - Counter
elapsed - Status" is permanently stored internally. The object is initialised im-
mediately with the value that was saved before bus voltage return or ETS pro-
gramming. If an operating hours counter is in this case identified as having
elapsed, i.e. if the object value is a "1", an additional telegram will be actively
transmitted to the bus. If the counter has not yet elapsed (object value "0"), no
telegram is transmitted on bus voltage return or after an ETS programming op-
eration.
With a signal value or start value preset via object: The values received via the
object are first validly accepted and permanently saved internally after a re-
start of the operating hours counter. The object is initialised immediately with
the value that was last saved before bus voltage return or ETS programming.
The values received will be lost in the case of a bus voltage failure or by an
ETS download if no counter restart was executed before. For this reason,
when specifying a new start or limiting value it is advisable to always execute
a counter restart afterwards as well.
A standard value is predefined provided that no signal value or start value has
been received yet via the object. The values received and stored via the object
are reset to the standard value if the operating hours counter is disabled in the
parameters of the ETS and a ETS download is being performed.
With a signal value or start value predefined via object: If the signal value or
start value is predefined with "0", the actuator will ignore a counter restart to
avoid an undesired reset (e.g. in construction site mode -> hours already
counted by manual operation).
If the counter direction of an operating hours counter is reversed by reconfigur-
ation in the ETS, a restart of the meter should always be performed after pro-
gramming the actuator so that the meter is reinitialised.
Heating actuator 6-gang with controller | Order no. 2139 00 | 21393100
Page 115 of 257
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