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SM331 Strange Problem

Created by: Jyotirmoy at: 7/16/2009 10:35 AM (3 Replies)

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7/16/2009 10:35 AM	Rate (0)
Jyotirmoy Posts: 2 Rating: (0)	Dear All, I have faced a strange problem with one AI module (6ES7 331-7KF02-0AB0). We are using CPU 417-4H (6ES7 417-4HL04-0XB0 / V4.0) with ET200M of type no. 6ES7 153-2BA02-0AB0 (Total 24 nos. of nodes). To find out the external fault in the CPU (EXTF was glowing), we were looking into the online hardware configuration and could not find anything wrong with any ET200M station. So we searched all ET200M stations in the field for any problem and found that SF LED in one AI card is glowing. But the SF LEDs of the two IMs of that particular station were not glowing. The AI card was being used as thermocoule card. However no thermocouples wereconnected to the card. The "Diagnostic Interrupt" was selected for that card, but the "Group Diagnostics" and Wire Break Check" were not selected. "Measuring Type" - "TC-IL" and "Measuring Range" - "TypeK" were configured. After this, we again looked in the online hardware configuration and opened the online information of that thermocouple card. In the diagnostic interrupt tab we found the following error information: External error Faulty module No external auxiliary voltage We checked the L+ input of the card and found that the voltage is missing. Request your help for the following: 1. SF LED should glow when Card SF LED is glowoing. But in reality, it was not glowing. 2. In the diagnostic information for that AI card, detail was given. But from the online view of the hardware configuration of the system it was not found. Generally for any card fault we get indication in the online hardware configuration ("x" mark etc.). Attachment AI Card Configuration.JPG (338 Downloads)
Jyotirmoy Posts: 2 Rating: (0)
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8/31/2012 11:52 AM	Rate (0)
Er. Sanjay Mistry Posts: 79 Rating: (7)	hi, i have also some how like this problem i want to make logic on if any wire break is detected, i want to use it for alarms. main problem is confusion about if it is compulsary to use an RTD module for referance if any AI TC module is used?
Er. Sanjay Mistry Posts: 79 Rating: (7)
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6/1/2014 3:12 PM
SMHZ Bronze Member Joined: 10/19/2012 Last visit: 4/17/2022 Posts: 315 Rating: (9)	Does ur problem got solved?

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9/15/2014 9:01 AM	Rate (0)
Min_Moderator Platinum Member Joined: 9/3/2014 Last visit: 3/13/2019 Posts: 4766 Rating: (122)	New question published by CJ1976is split to a separate thread with the subject trying to read in from the Analog outputs of a Micromaster 420. Best regards Min_Moderator

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