Operating hours counter
8.2 Preset and apply start values for operating hours counters
Analog input module AI Energy Meter 480VAC/CT HF (6ES7134-6PA00-0CU0)
74 Manual, 07/2018, A5E42674880-AA
● In your STEP 7 project you have created a PLC data type that has an identical structure
to data record DS 143 and have entered the start values.
● Set the Bit 3 to 1 so that the start values for the operating hours counters are preset.
● In control byte 1 of DS 143 you have set Bit 7 to "1" (apply start values via DQ bit). (see
previous figure)
● You have transferred the data record DS 143 with new start values to the CPU. The
assignment of the data record can be found in Structure for energy counters (DS 143)
(Page 232)
Note
Pre-set start values for counters
If you have not yet transferred any start values to the CPU using the data record DS 143,
then start the counters with the value 0.
Procedure for applying the start values of all operating hours counters
Applying the start values for all operating hours counters with the module versions with
2 bytes and 20 bytes of output data is identical.
1. Set the reset bit for operating hours counters (Bit 5) in Byte 1 in the output data.
Figure 8-2 Control byte 1 Reset for all operating hours counters
If there is an edge change of the reset bit from 0 to 1, the module applies the start values
for all operating hours counters.
Procedure for applying the start values of individual operating hours counters
Note
Applying the start values for phase-specific operating hours counters
Applying the start values for phase
-specific operating hours counter
s does not differ from the
procedure described above. In the output data, select the reset bits for the phase
-specific
operating hours counters in bytes 6, 8 and 10.
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