How do I transfer a data record to PLC automatically? Recipe stored in HMI only. I can't get event on a PLC request tag to actually fire a HMI tag OnChange, then I would used the already tested Data Record function. 

Seems as a basic concept that must work. Remote plc requests our plc to run recipe X, and all records exist on sd card in hmi.

Tp 700 + s7-1200

AAPAB

How do I transfer a data record to PLC automatically? Recipe stored in HMI only. I can't get event on a PLC request tag to actually fire a HMI tag OnChange, then I would used the already tested Data Record function. 

Seems as a basic concept that must work. Remote plc requests our plc to run recipe X, and all records exist on sd card in hmi.

Tp 700 + s7-1200

 Hi,

try to use "synchronize tag" in the recipe properties :

Propertie => synchronize tag

If "tag on line" is untick the displayed value are automatically load on the PLC, you don't need to press the download button of the recipe window However any change of recipe is send to the PLC and the value will change every time you change a recipe... on the recipe view the displayed value are automatically send to the PLC in some case that can be restrictive...

Hope this help you

Regard

Sorry, I do not understand your answer. I need to from the PLC request a recipe to be transferred from the HMI to the PLC. I saw another post about "mailbox" or "controller job", maybe that's the way?

Thanks, I will read up on the synchronization (totally unrelated as I see it), but the issue was to trigger the data record change from the PLC.

I managed to get the trigger tag working, but since the HMI only has an OnChange it seems as download / reset will make it try to transfer also in some cases. Help about synchronization pointed to Job Mailbox, maybe it is a way for the PLC to request the transfer? All records are only on SD card in the HMI.

I still need to find the correct way to do it. A trigger tag in PLC does not work all the time, but only when the recipe screen on the HMI is open. How the f can this be?

I use the triggertag to call the function SetDataRecordToPLC. I use the same function on a button on the HMI so that I can disable it when needed.

AAPAB

Sorry, I do not understand your answer. I need to from the PLC request a recipe to be transferred from the HMI to the PLC. I saw another post about "mailbox" or "controller job", maybe that's the way?

 Ok, I understood from the HMI to the PLC...

Hi AAPAB, 

I am chasing the same gost , can I ask have you gotten anywhere with this problem?

What I read sofar about the tag having to be on the active screen is already useful though, thanks for that. 

peter