Hi all,
im currently working on a PLC5 to CLX conversion and have ran into a number of communications speed problems.
Due to operational availabilty, im only able to do work on the system when the site is shutdown (12hrs/week), and as a result i have to do the upgrade in 2 stages.
1st stage involves converting the PLC5 program to a CLX program, and using the existing IO as Remote IO. RIO was choosen as there were already RIO nodes on the network, and the client is a tightass and didnt want to spend more money on a controlnet PLC5 adaptors.
2nd stage involves converting the PLC5 IO over to Flex IO communicating to the CLX over Ethernet.
The process is quite time critical and as such any communication delays in the 1st stage will be detrimental to the performace of the system.
I have tested the converted program on site and everything works well except 1 part of the process, which works too slow.
Luckly for me, everything to do with that process is located on one RIO rack, and that rack is currently of a Flex IO hardware.
If worst comes to worst i will convert that Flex Rio adaptor to an Ethernet RIO adaptor and hope that this will cause the speed to be adequate, however before i go down that path, i want to know if theres a way i can initiate the CLX processor to read that RIO nodes input and output image when i trigger it via a ladder program. That way i can manually update the image table of the IO cards before i start executing the code in the PLC, and then update the output table of the IO cards when i have finished executing the code.
Similar to the IIN and IOT instructions in Logix5/500
I know that Logix5000 has the IOT instruction but havent found anything similar to an IIN instruction.
Does anyone out there know of anything that could help me??
im currently working on a PLC5 to CLX conversion and have ran into a number of communications speed problems.
Due to operational availabilty, im only able to do work on the system when the site is shutdown (12hrs/week), and as a result i have to do the upgrade in 2 stages.
1st stage involves converting the PLC5 program to a CLX program, and using the existing IO as Remote IO. RIO was choosen as there were already RIO nodes on the network, and the client is a tightass and didnt want to spend more money on a controlnet PLC5 adaptors.
2nd stage involves converting the PLC5 IO over to Flex IO communicating to the CLX over Ethernet.
The process is quite time critical and as such any communication delays in the 1st stage will be detrimental to the performace of the system.
I have tested the converted program on site and everything works well except 1 part of the process, which works too slow.
Luckly for me, everything to do with that process is located on one RIO rack, and that rack is currently of a Flex IO hardware.
If worst comes to worst i will convert that Flex Rio adaptor to an Ethernet RIO adaptor and hope that this will cause the speed to be adequate, however before i go down that path, i want to know if theres a way i can initiate the CLX processor to read that RIO nodes input and output image when i trigger it via a ladder program. That way i can manually update the image table of the IO cards before i start executing the code in the PLC, and then update the output table of the IO cards when i have finished executing the code.
Similar to the IIN and IOT instructions in Logix5/500
I know that Logix5000 has the IOT instruction but havent found anything similar to an IIN instruction.
Does anyone out there know of anything that could help me??