Can you see analog Values in one PLC from another using HMI Tags?

gbradley

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MY PLC has only discreet inputs cards currently.
Thermocouple Input card for CompactLogix is $1500 bucks and I am not sure if it is even available.
I had a click laying around with Thermocouple input
We have successfully connected the Click to the same RED Lion HMI
The Click thermocouple output (C0-04THM) is connected to a Temperature Tag on the HMI, so I can now display the actual temperature on the HMI.
I want to make it so that if the temperature is above a certain value, (150°F ) then the Compactlogix knows that the temperature has reached 150°F and it will kick it out of Automatic Mode and flash a warning.
I understand that I can modify the click code to turn on an output if the temperature reaches a certain value. We can run the Output from the Click to an Input on the CompactLogix.
Is there a way to do the same thing using a rung in the CompactLogix using the Temperature Tag in the HMI?

CommunicationsP11650.JPG
 
I wasn't sure if the CR1000 had the Protocol Converter functions available, but according to the datasheet it does. So as joseph_e2 said, you can have the RedLion put the Click temperature information in to a Register on the CompactLogix by using Gateway Blocks.
 
George,

Your problem is going to be.... the 19HS will never connect to the switch :eek:

Click's do make great remote I/O's
 
Click to CompactLogix is pretty simple. You can even create an EDS in the Click and throw the Click in the tree in 5000. Connecting a Click to a Micro850 over Modbus (with the 850 reading) was a little tricky on the other hand.
 

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