tag name change in function block in CLD (composer harmony)
the question is :
if I change tag name in function block in composer harmony but the same LOOP ,PCU , function block number , CLD and controller
1- will the composer fetch the data normally ?
2- is it obligatory to make download ?
thanks
if I change tag name in function block in composer harmony but the same LOOP ,PCU , function block number , CLD and controller
1- will the composer fetch the data normally ?
2- is it obligatory to make download ?
thanks
Asked 6 months ago
Voted best answer
5
Hi,
1. Composer or Control Engineering as it is called now days does not fetch any tag data from controllers, it's purpose is to handle the control logic and assign tags to exception function blocks.
It's the HMI system's job to gather tag data from controllers based on the tag list received from Control Enginering. The HMI will continue to collect data even though the tag name has changed since it use L-P-M-B address to gather data.
2. No download needed as there is no change to the logic, you simply need to update the tag name in the HMI by either importing the tag again or manually editing it in the HMI.
HP
1. Composer or Control Engineering as it is called now days does not fetch any tag data from controllers, it's purpose is to handle the control logic and assign tags to exception function blocks.
It's the HMI system's job to gather tag data from controllers based on the tag list received from Control Enginering. The HMI will continue to collect data even though the tag name has changed since it use L-P-M-B address to gather data.
2. No download needed as there is no change to the logic, you simply need to update the tag name in the HMI by either importing the tag again or manually editing it in the HMI.
HP
Answered 6 months ago
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