ceilingwalker
Lifetime Supporting Member
Good day all. I have a quick question about configuring a 1746-NR RTD Module for SLC500 w/ 5/03 CPU. Everything on the system works fine, however, when I go to advanced configuration for this module it shows temp in "C" (input is displayed on HMI as "F" and I confirmed that it is indeed displaying temp in "F". Secondly, and more importantly, where it shows "broken input" it has "zero" selected. When I disconnect the "return" wire from the module (simulating a broken wire) if I understand this, it should be read as a "0" (with broken input set to "zero"), right? It doesn't, it reads "153.5" as the temp, not zero. This is desirable as I don't want my tanks of acid to continue to heat should I lose an RTD. So, does it not then matter that the advanced configurations are not set. By the way, there is also a "channel enable" in the upper-left corner of the advanced config box and it is not checked, but the device is working, even without enable being selected. Thank you much for the words of wisdom.