lslarry86
Member
Hi -
I currently have a custom controller board that does some things that are clearly within the domain of ladder logic. But it also does some things that may not be:
1. Watch for a trigger
2. Send a stored serial command to an external device
3. Read that device's reply
4. Check the CRC
5. Parse the reply for good/bad result
6. Take control actions based on the result
7. Modify the stored serial command for the next cycle and update the CRC.
#1 and #6 are good PLC functionality, but is it reasonable to expect enough computation from a PLC to do the other things?
I'm asking because I have my eye on the a certain low-end PLC which my favorite electronics company sells for less than it costs me to build my custom board.
Is it possible to port my application to a PLC?
Thanks,
Larry
I currently have a custom controller board that does some things that are clearly within the domain of ladder logic. But it also does some things that may not be:
1. Watch for a trigger
2. Send a stored serial command to an external device
3. Read that device's reply
4. Check the CRC
5. Parse the reply for good/bad result
6. Take control actions based on the result
7. Modify the stored serial command for the next cycle and update the CRC.
#1 and #6 are good PLC functionality, but is it reasonable to expect enough computation from a PLC to do the other things?
I'm asking because I have my eye on the a certain low-end PLC which my favorite electronics company sells for less than it costs me to build my custom board.
Is it possible to port my application to a PLC?
Thanks,
Larry