Siemens SIMATIC Mobile Client900RFN, Руководство по эксплуатации

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Device maintenance and repair
9.4 Maintenance application
Mobile Client900RXA
Operating Instructions, 07/2015, A5E36360099-AA
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The device is also fitted with an internal operating data recording system which is active in all
standard operating states (see below). The following data is permanently stored for
evaluating use for servicing purposes:
● Device operating time
● Number of commissioning operations
● Number of switch-on operations
Requirement
You have opened the "Maintenance" dialog using the corresponding icon.
Operating data recording
The first column in the table contains a set temperature range. The columns contain the
individual counters for operating states and transitions. In principle, SMM stands for "device
has voltage supply" and CPU for "device is on and running".
Time indicates the total duration of the operating state in the temperature range in seconds.
The time for which the device had a voltage supply (SMM-Time) or was switched on
(CPU-Time). Example: CPU-Time (REGULAR) = 716643. The device ran for a total of
716643 seconds = 8.3 days in the optimum temperature range (REGULAR).
Note
As each device that is switched on also has a voltage supply, the "device switched on and
running" (CPU) operating state times are always recorded simultaneously on the CPU- and
SMM- counters.
PwrCycles shows how often the device switched to this operating state. How often was
voltage applied to the device in the temperature range (device connected, SMM-PwrCycles)
and device switched on (CPU-PwrCycles).