SAP PCo Tag monitoring

[shaji_chandran]

Hello Experts,

     In our scenario  SAP PCo needs to monitor around 50 tags per plant and for 7 plants it needs to monitor 350 tags. Pco must send notification to MII with latest value when each of these tag value changes. Will this leads to any performance issue in terms of number of tags ?

SAP MII 15.0 SP4 with SAP PCo 15.0 version

Thanks

Shaji

[former_member196557 · Accepted solution]

HI Shaji,

This is well below any limit that PCo will hit with proper sizing based on the sizing guide that is referenced in Christians response above. Not that we have customers monitoring thousands of tags from dozens of different controllers with a single properly sized PCo Server.

If your updates to MII are very frequent, you may need to revisit the tuning parameters for ICM and Netweaver to make sure that there are sufficient resources there to support the message frequency.

Regards, Steve

[alexander_teslyuk]

Hi Shaji,

And in addition to the abovementioned, you can define message bundling rules to not fire a notification message to MII that often. Check out Message Delivery tab for the Notification.

Moreover, since PCo 15.1 Notification Message Queue has been enhanced. Now you have more flexibility in where to store the message queue and how to deal with expired messages.

Br, Alex.

[former_member185280]

Shaji,

It looks like there is a good Sizing Guide available for PCo:

http://websmp201.sap-ag.de/~sapidb/011000358700000127632011E/PCo_2_3.pdf

Regards,
Christian