Skip to Content

Register Login

Industry Online Support

Technical Forum

Navigation

Internal PLC Relay not working

Created by: AlejandroPanto10101 at: 4/8/2021 4:23 AM (6 Replies)

Rating (0)

Thanks 1

7 Entries

4/8/2021 4:23 AM	Rate (0)
AlejandroPanto10101 Member Joined: 1/16/2021 Last visit: 1/3/2023 Posts: 4 Rating: (0)	I am loading a program to test the LED on the s7-1200 PLC, CPU 1212c AC/DC/RLY: input i0.0 activate Q0.0 nothing is connected just checking led(in/out) on plc and its on input i0.1 activate Q0.1 nothing is connected just checking led(in/out) on plc and its on ... all the way to.. input i0.6 activate Q0.6 nothing is connected just checking led(in/out) on plc and Does not come on input i0.7 activate Q0.7 nothing is connected just checking led(in/out) on plc and Does not come on *the picture shows the basic program. The LED on the Input side turns on but the Output side does not for i0.6 or i0.7 How can I fix it? Thank you!! Attachment plc i0.6.PNG (91 Downloads)
	Last edited by: AlejandroPanto10101 at: 04/08/2021 04:32:23
Suggestion To thank Quote Answer

4/8/2021 5:26 AM	Rate (0)
grrrrrroooo Platinum Member Joined: 3/16/2015 Last visit: 10/10/2021 Posts: 1250 Rating: (164)	Your input is not ON in the logic so it is most likely a wiring problem.

Suggestion To thank Quote Answer

4/9/2021 4:33 AM	Rate (0)
AlejandroPanto10101 Member Joined: 1/16/2021 Last visit: 1/3/2023 Posts: 4 Rating: (0)	I do not have wires connected to the PLC. I am having a problem with the Relay inside the PLC as you can see in the pictures. The Output LED indicator does not come on when control by input i0.6 and i0.7. It does not make the clicking noise. Attachment 20210408_222917.jpg (111 Downloads)
	Last edited by: AlejandroPanto10101 at: 04/09/2021 04:36:07 Last edited by: AlejandroPanto10101 at: 04/09/2021 04:39:17
Suggestion To thank Quote Answer

4/9/2021 5:11 AM	Rate (0)
AlejandroPanto10101 Member Joined: 1/16/2021 Last visit: 1/3/2023 Posts: 4 Rating: (0)	I had a communication issue inside the PLC. The CPU was not passing the information between Input and Output. My solution was reset the S7-1200 to factory settings.

Suggestion To thank Quote Answer

4/9/2021 10:08 AM	Rate (0)
mirip Gold Member Joined: 6/14/2013 Last visit: 1/28/2023 Posts: 218 Rating: (9)	hi, Input "Tag_5" (% I0.6) is not activated in your network 3, it is normal that Led Q0.6 remains off! mirip.

Suggestion To thank Quote Answer

4/9/2021 10:25 AM	Rate (0)
Marcjan Platinum Member Joined: 4/22/2010 Last visit: 12/15/2022 Posts: 5697 Rating: (701)	Hello, Have a good look at your PLC , there is no output 0.6 and 0.7 6ES7212-1BE40-0XB0 Regards, Marcjan
	Last edited by: Marcjan at: 04/09/2021 10:56:10 Problem solved? Please let us know! Please no technical questions by PM, use the forum sections for your questions.
Suggestion To thank Quote Answer
This contribution was helpful to 1 thankful Users Mohamed Elshaer

4/9/2021 3:43 PM	Rate (0)
AlejandroPanto10101 Member Joined: 1/16/2021 Last visit: 1/3/2023 Posts: 4 Rating: (0)	When I start having the problem I had a expansion i/o module. That was the reason why I start testing with Q0.6 and Q0.7. But then I find out that the input i0.6 and i0.7 were not controlling any digital output build in the PLC (Q0.0 to Q0.3) I do not know what cause it, but It was SOLVED when I reset it to factory settings. Thank you
	Last edited by: AlejandroPanto10101 at: 04/09/2021 15:55:04 Last edited by: AlejandroPanto10101 at: 04/09/2021 15:55:36
Suggestion To thank Quote Answer

|

Share this page:

Share this page on...

Follow us on