5/23/2014 9:29 AM | |
Posts: 11 Rating: (0) |
Hi, I'm using GF meters for measuring the PH. Apart from this a local level sensor. I dont know the name. I have attached the Manual for the GF meter. if i replace the new module it will work good for some days. Again it is going bad. Also i have sent these failed modules to siemens for service. They say me that a Chip inside the module has been damaged. When i ask the reason, they say may be due to more power. I asked them whether there was any problem in the input terminals. They said only CHIP. Attachment8750-1manual.pdf (580 Downloads) |
5/23/2014 9:42 AM | |
Joined: 5/28/2008 Last visit: 9/21/2024 Posts: 4515 Rating: (839)
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Hello, For Module6ES7331-7KF02-0AB0there's a rule. Connection should match the black bridge seetings as per manual and as per hardware configruration to let the module operate in its right way. More over in some cases, if you set the black square in wrong position, it will destroy the module. Please resvise the Module data. I have no explanation for what happen in your case, but in the same time I do not like others to play same game with their 7KF02 modules as they may lose these modules. Hope this helps.
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Ayman Elotaify |
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5/23/2014 9:44 AM | |
Joined: 3/21/2006 Last visit: 9/10/2024 Posts: 10228 Rating: (1181) |
Change the connection type regarding the sensor. |
5/23/2014 10:00 AM | |
Posts: 11 Rating: (0) |
Hi, I have attached a picture how i have made the wiring for the module |
5/23/2014 10:05 AM | |
Posts: 11 Rating: (0) |
hi Ayman Elotaify, Can you please tell me about this black bride connection. I'm not clear about this concept |
5/23/2014 12:24 PM | |||||||||||
Joined: 5/28/2008 Last visit: 9/21/2024 Posts: 4515 Rating: (839)
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Hello kalidasan, If your module 6ES7331-7KF02-0AB0 is in your hand now, please look at its side, you will see Four Black Squares. Each square can be set into position A, B, C or D. It's called measurring range modules. These modules should be set in its correct position according to the type of sensor you connect in according to the following table:
The above table can be found in theSIMATIC S7-300 S7-300 Module data,section "6.7.1" Moreover, you have to define the sensor correctly in HW config in order to recieve a correct value on the AI module. And moreover, when you set the HW configuration with the sensor measuring data, it tells you info about the setting of these measuring range modules as per the attached picture. Hope this helps.
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Ayman Elotaify |
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5/23/2014 1:12 PM | |
Joined: 11/21/2007 Last visit: 8/12/2024 Posts: 2325 Rating: (308) |
Did you ever try to read the Manual ? The Black Bridge ( Not Bride ) Mentioned by Ayman Elotaifyis the set of 4 black submodules on the right side of the AI Module. As per your Sketch, that se correctly set at "D" for 2 wire trasducer. Just why have you defined the Module as 0-10V in Hardware Configuration. I think that Module "SF" LED would glow if channel type defined in Hardware Configuration and the Module do not match. First and foremost, the two must match. Thereafter if you face any problems, pl post them here Cheers Navnag |
There is no such thing as the last bug in a program |
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5/23/2014 2:03 PM | |
Joined: 5/28/2008 Last visit: 9/21/2024 Posts: 4515 Rating: (839)
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Hello again, To finish this issue here, I would like you to see the attached pictures to know exactly where are the measuring modules (black squares) And please note that this module is 8 channels AI. with 4 groups. So each measuring module change the measuring range for 2 channels of that module.
Attachment331-7KF.zip (273 Downloads) |
Last edited by: Ayman Elotaify at: 5/23/2014 2:07 PMAyman Elotaify |
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5/23/2014 4:15 PM | |
Joined: 4/11/2011 Last visit: 7/16/2024 Posts: 132 Rating: (7) |
I am wondering... In your pictureDSC_1782[1].jpg"+" and "-" from the meter. What terminals are used? According to manual on page number 3 there is "Connection to a PLC/Recorder, separate supply". Are you using this connection? Terminals 1 and 2. If you are using terminals 3 and 4 ( "output -" and "output +") as an input of analog module, then your problem is known. As8750-1manual.pdfsays:
You just short circuit an analog input of module. If this is a case.
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I'm just a human. Mistakes are allowed. |
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