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PLC SF appear when I call FC2

4/20/2014 5:09 PM	Rate (0)
Nam.Automation Posts: 1 Rating: (0)	Could you help me! My code in S7: In OB1: OPN "HSC1" CALL "CNT2_CTR" DB_NO:=W#16#8 SET = DBX 23.0 In HW I was configuration: Specify channels: ⊙ Channel 0...7 as single counter The following settings are valid for channel 0. Operating modes: ⊙ Continous counting ☑ Use hardware gate Encoders: ⊙ Pulse and direction ⊙ Main count direction up Interrupt enable: not possible, because deselected in basic parameters Outputs: ⊙ no comparison But. When I run PLC. It has 3 Led Flash. Run, DC5V and SF. The SF appear when I call FC2. I dont understand.
Nam.Automation Posts: 1 Rating: (0)	Last edited by: GrasserF at: 4/22/2014 11:28 AM Last edited by: GrasserF at: 4/22/2014 11:27 AM new subject after splitting from /tf/WW/en/Posts/9352#top
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4/25/2014 8:29 AM	Rate (0)
Sachinpatke Posts: 623 Rating: (77)	Hi Nam, If you have such big problem, then give more description and add more attachments. As per your description, proceed as follows- 1. Check encoder is faulty or not on diffrent PLCs. 2. Check and confirm wiring for encoder to PLC. 3. Download the PLC program without FC2 and run. Run and DC5V led only should be on. If it is not the case, go to step 1 or 2. 4. If led are OK, then call FC2 and download. and test.
Sachinpatke Posts: 623 Rating: (77)
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4/25/2014 9:02 AM	Rate (0)
olloy Posts: 417 Rating: (37)	Hi! Take a look at diagnostic buffer and post it here.
olloy Posts: 417 Rating: (37)
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5/10/2014 5:25 AM	Rate (0)
Demendia Posts: 14 Rating: (0)	Got the same problem also.. everything seems fine, tried different HW,Wiring and encoders and still the same everytime i try to call FC2 i got a SF at the current call.
Demendia Posts: 14 Rating: (0)
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5/10/2014 8:27 AM	Rate (0)
Marcjan Diamond Member Joined: 4/22/2010 Last visit: 3/31/2025 Posts: 5697 Rating: (716)	Hello, Please show us some code to check. Have a look at the diagnostic buffer. Regards, Marcjan,
	Problem solved? Please let us know! Please no technical questions by PM, use the forum sections for your questions.
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5/10/2014 2:10 PM	Rate (0)
Demendia Posts: 14 Rating: (0)	The SF gone now .. my problem is that i cannot find which PIW to use tryied the way i saw in the FM manual but nothing you can take a look Attachment MachineT.zip (323 Downloads)
Demendia Posts: 14 Rating: (0)	Last edited by: Demendia at: 5/11/2014 9:57 AM To the first post. I had wrong channel address when i gave the correct one everything run without faults. I need now to find the correct PIW or PID, If anyone can explain it :)
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This contribution was helpful to 1 thankful Users rico3334

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