Monitoring The Status Of Communications With A Plc; Using The Status Item In Excel; Monitoring The Status Of Communications With Intouch; Using Ddestatus And Iostatus In Excel - Siemens 3964R User Manual

Monitoring the Status of Communications with a PLC

For each topic name (PLC), there is a built-in discrete item that can be used to monitor
the status of communications with the PLC. The discrete item, Status, is set to 0 when
communication with the PLC fails and is set to 1 when communication is successful.

Using the Status Item in Excel

The status of the PLC communications can be read into Excel by entering the following
DDE reference formula in a cell on a spreadsheet:
where:

Monitoring the Status of Communications with InTouch

InTouch supports built-in topic names called DDEStatus and IOStatus that are used to
monitor the status of communications between the server and InTouch. For more
information on the built-in topic names DDEStatus and IOStatus, see your online
"InTouch User's Guide".

Using DDEStatus and IOStatus in Excel

The status of communication between the server and InTouch can be read into Excel by
entering the following DDE reference formula in a cell on a spreadsheet:
or
where:
=S3964R|S115U!Status
S3964R Is the server application name.
S115U Is the exact topic name defined in the server for the PLC.
Status Built-in discrete item used to monitor the status of
communications with the PLC.
=view|DDEStatus!S115U
=view|IOStatus!S115U
View Is the name of the InTouch View application.
[DDE][IO]Status Built-in topic name used to monitor the status of
communications between the server and InTouch.
S115U The exact topic name defined in the server for the PLC.
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