SiePortal

The integrated platform for your product selection, buying and support workflow - bringing together Industry Mall and Online Support.

Products & Services
- Menu temporary not available
- Menue temporary not available
- {{item.title}}
Support Support
{{(apiData.Support | filter:{'rank':1}:true)[0].title}} Support
- Menu temporary not available
- Menue temporary not available
- {{item.title}}
MySiePortal MySiePortal
{{(apiData.MySiePortal | filter:{'rank':1}:true)[0].title}} MySiePortal
- Menu temporary not available
- Menue temporary not available
- {{item.title}}
Cart ({{apiData.CartCount}})

Navigation

ENABLE WIRE DETECTION IN IM 151-8 PN/DP CPU

1/27/2012 8:44 AM	Rate (0)
patel Posts: 134 Rating: (2)	Hi.. I am using IM 151-8 PN/DP CPU and one 2/4 AI RTD STD module is configured in central rack with CPU. I want to use WIRE BREAK DETECTION feature of analog module to indicate wire break of perticular channel. In the case of wire break,channel count will be 32767..and using last 16th bit, i can evaluate the wirebreak event...this i knows but i dont want to do that way... Now, what i want is,this information of wire break of perticular channel should be available to operator on runtime scada Cananybody please help me how to do this..
patel Posts: 134 Rating: (2)
Suggestion To thank Quote Answer

1/28/2012 3:34 PM	Rate (0)
jklm Posts: 1742 Rating: (309)	Hello, I have two suggestions. 1) First, try to activate wire break dignostic in the parameters of thechannel(should be possible excepted for PTC mode). Using SFB54 you can catch errors in the interrupt OBs. Call the SFB54 within the interrupt OB82 started by the CPU operating system in order to examine the I/O interrupt. For central modules, the buffer AINFO should contain data record 1 In this manual: http://support.automation.siemens.com/WW/view/en/44240604 In chapter 33, the content of that record is described. In the channel specific diagnostic (see chapter 33.3) there is a bit "wire break" for analog input channels. I did not ry it, but could be that it works for you. See chapter 8.3 for the desciption of SFB59. 2)Another way isto read the data record 1, using SFC59, every10 seconds for example. In this manual: http://support.automation.siemens.com/WW/view/en/44240604 In chapter 7.8 you see how to call the function.
jklm Posts: 1742 Rating: (309)
Suggestion To thank Quote Answer

2/3/2012 8:13 AM	Rate (0)
patel Posts: 134 Rating: (2)	Hi.. Thnx for the reply but i could not get it...I am relatively new to this.. can you please send me any sample program or any snapshots of this procedure..
patel Posts: 134 Rating: (2)
Suggestion To thank Quote Answer

Share this page:

Share this page on...