Q64TCRT Module

[Duffanator 1]

Hey all, I was wondering if anyone has done anything with these temperature control modules and could give me a hand with something. I have it working and it works very well (I'm impressed how well they work) But I do have one problem that I can't figure out. There are buffer addresses (3Eh, 5Eh, 7Eh and 9Eh) that if you set to 1 will read the PID values stored in the EPROM of the card. This is so you can get values stored after doing an autotune so they don't revert back to original settings after the PLC is powered down. I am using 3 channels on the card so on the initial scan I set the values for those three channels to 1 to read out the values in the EPROM, but the problem I'm having is that as soon as it tries to read the values it faults out the card and stops the PLC. I have no problems writting to the EPROM after I do an autotune function so I'm not sure what's going on with that. Has anyone had a similar problem? Any help would be greatly appreciated, thanks!