Siemens SIMATIC NET Betriebsanweisung PDF herunterladen (Seite 47)

Predefined Item/Point Names 43

STORESETTINGS Item

The STORESETTINGS item is used to make the temporary update interval changes

via I/O permanent. If the client pokes a value of 1 into the STORESETTINGS item the

currently set update interval is written to the servers configuration file. If the update

interval has been changed via I/O and STORESETTINGS is not poked to 1 the server

will use the original update interval for that topic the next time it is started. Reading the

item will always give 0.

I/O Type: DISCRETE

ACCESS: READ/WRITE

RANGE: 0, 1

Note Use this item to conveniently store your optimized configuration via I/O.

ITEMCOUNT Item

The ITEMCOUNT item is used to access the number of active items in the

corresponding topic. It is the same value displayed in the monitor window of the S7

server under "Items". This item is read only.

I/O Type: INTEGER

ACCESS: READ

RANGE: 0..2147483647

Note Use the ITEMCOUNT item to monitor the number of currently active items.

ERRORCOUNT Item

The ERRORCOUNT item is used to access the number of active items that have errors

in the corresponding topic. It is the same value displayed in the monitor window of the

S7 server under "errors ( ) only". If the communication status of a topic is bad, all items

have errors (item count equals error count). This item is read only.

I/O Type: INTEGER

ACCESS: READ

RANGE: 0..2147483647

Note Use the ERRORCOUNT item to monitor if there are any badly configured items

or invalid item values. This is the case if the topic status is 1 and ERRORCOUNT is

not zero.

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Siemens SIMATIC NET Betriebsanweisung Seite 47