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Read PT100 with RTD Module

Created by: AutoGen_4913489 at: 5/20/2020 5:15 PM (4 Replies)

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5/20/2020 5:15 PM	Rate (0)
AutoGen_4913489 Posts: 3 Rating: (0)	Hi everyone, I need help reading a PT 100 with a RTD module. I did the parameterization but when I ran the program the value read from the input (Tag_11) was always 0. I changed the parameters and yet the value remained 0. I'm using the 4 wire sensor (below is the description). Any idea what the error could be? PLC: ET 200 Pro RTD Module: 6ES7 144- 4JF00 0AB0 Attachment RTD_PT100.zip (413 Downloads)
AutoGen_4913489 Posts: 3 Rating: (0)	Last edited by: AutoGen_4913489 at: 05/20/2020 17:16:24
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5/21/2020 8:08 AM	Rate (0)
Mr.V Silver Member Joined: 6/19/2019 Last visit: 10/29/2024 Posts: 705 Rating: (76)	It's can be complicated first i will check again or do good connection to module from sensor, second mind was see configurations again maybe there are mistake and maybe not start from %IW368 Attachment 4-wire.png (384 Downloads)

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5/21/2020 10:40 AM	Rate (0)
AutoGen_4913489 Posts: 3 Rating: (0)	Thank you for your answer. I made sure the connection in the terminal was correct, like in the manual. I used the input as Int because as I saw in other topics here, the signal the module sends is for example, 234 to 23.4 ºC... I changed the input to real, to see if it worked and also did not work. I measured the resistance of the PT100 and it was 110 ohms. I don't know what happens
AutoGen_4913489 Posts: 3 Rating: (0)
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5/25/2020 10:46 AM	Rate (0)
AutoGen_4913489 Posts: 3 Rating: (0)	Hi all, I found the problem. In the input I have to use :P ... like %ID306:P
AutoGen_4913489 Posts: 3 Rating: (0)
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5/27/2020 9:58 AM	Rate (0)
fariborz M Experienced Member Joined: 12/10/2018 Last visit: 6/27/2024 Posts: 109 Rating: (11)	AutoGen_4913489 Hi everyone, I need help reading a PT 100 with a RTD module. I did the parameterization but when I ran the program the value read from the input (Tag_11) was always 0. I changed the parameters and yet the value remained 0. I'm using the 4 wire sensor (below is the description). Any idea what the error could be? PLC: ET 200 Pro RTD Module: 6ES7 144- 4JF00 0AB0 Hello dear Please read the attached file. It may be useful Attachment ET 200pro distributed I_O system.pdf (454 Downloads)

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