Preset And Apply Start Values For Operating Hours Counters; Preset Start Values For Operating Hours Counters - Siemens Simatic ET 200SP Manual

8.2

Preset and apply start values for operating hours counters

Introduction
At the beginning of a new work order, it may be useful to start counting of the operating
hours counters with new start values.
Define the new start values for the operating hours counters in data record DS 143.
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.
With all the module versions there are two ways of applying the start values:
● Transfer start values from data record DS 143 and apply them immediately
● Transfer start values from data record DS 143 and only apply them after setting a special
bit (DQ bit for operating hours counter reset)
Both options are described in the following sections.
General reset
With module versions with 20 bytes of user data you can reset the operating hours counters.
With a general reset, you cannot preset any start values; the start values for operating hours
counters are always zero with a general reset.
You can find additional information on the general reset in the section Basics for reading
measured values (Page 41).
8.2.1

Preset start values for operating hours counters

Define the start values for operating hours counters using data record DS 143.
Introduction
You have created a PLC data type that has an identical structure to data record DS 143.
Analog input module AI Energy Meter 480VAC/CT HF (6ES7134-6PA00-0CU0)
Manual, 07/2018, A5E42674880-AA
8.2 Preset and apply start values for operating hours counters
Operating hours counter
71