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TIA - Cannot Monitor a FC Block, all others OK

Created by: iadapt at: 2/11/2017 6:02 PM (8 Replies)

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2/11/2017 6:02 PM	Rate (0)
iadapt Posts: 10 Rating: (0)	Hello, I have one specific FC block that I cannot monitor online. I have over a dozen other blocks that let me monitor them. I added this block to put some additional simple controls to our project. I have compiled the project with NO errors. I think this is something pretty simple as there are only a couple inputs a counter and positive pulse instruction and an ouput. Any ideas.
iadapt Posts: 10 Rating: (0)
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2/11/2017 6:26 PM	Rate (0)
Sachinpatke Silver Member Joined: 12/9/2010 Last visit: 10/8/2022 Posts: 623 Rating: (77)	Hi iadapt, Can u attach screenshot ? FC can't be monitored if it is not called or called in error OBs. The RUN status at the bottom will not flash.
	If you like the comment, rate it (right top) or thank it (left bottom). One who says he can & one who says he can't, are both correct-Confusius. Automation- C2C, Management Sachin Patke, India.
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2/11/2017 9:45 PM	Rate (0)
iadapt Posts: 10 Rating: (0)	Yes, I will post a pic in a few minutes.
iadapt Posts: 10 Rating: (0)
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2/11/2017 10:02 PM	Rate (0)
iadapt Posts: 10 Rating: (0)	I have attached a picture of the code. Attachment Siemens S7.JPG (559 Downloads)
iadapt Posts: 10 Rating: (0)
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2/11/2017 10:38 PM	Rate (0)
iadapt Posts: 10 Rating: (0)	Im taking out the count up on the main control power on rung. I only need a one time pulse when the machine starts. But only one pulse. But I still don't know why the FC is greyed out and I am unable to monitor the block, while the other FC blocks can be monitored while online.
iadapt Posts: 10 Rating: (0)
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2/12/2017 9:41 AM	Rate (0)
William_B Posts: 5225 Rating: (1195)	iadapt Im taking out the count up on the main control power on rung. I only need a one time pulse when the machine starts. But only one pulse. But I still don't know why the FC is greyed out and I am unable to monitor the block, while the other FC blocks can be monitored while online. Hi. I assume the IO that is mentioned inside the FC does actually exist. I also assume that the offline program and online program is the same. One question remains - how is the FC called? (Another screen capture would be nice.) Regards.
William_B Posts: 5225 Rating: (1195)
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2/12/2017 4:10 PM	Rate (0)
iadapt Posts: 10 Rating: (0)	I have to online and offline code the same, but I think you have hit the nail on the head. I dont have anyway for it to call up the FC. I have to learn how to do that. I just created the FC and than assumed it would follow the code which would lead to the FC. Guess I am wrong.
iadapt Posts: 10 Rating: (0)	Last edited by: iadapt at: 2/12/2017 4:11:47 PM
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2/12/2017 4:27 PM	Rate (0)
William_B Posts: 5225 Rating: (1195)	iadapt I have to online and offline code the same, but I think you have hit the nail on the head. I dont have anyway for it to call up the FC. I have to learn how to do that. I just created the FC and than assumed it would follow the code which would lead to the FC. Guess I am wrong. Thank you for your reply. Because there are several ways to initiate the call of the FC, that call is not done automatically for you. In the project tree you will see that FC of yours. The most simple is to open OB1 (MAIN) and drag-drop the code block in a new network. Note that there are alternatives that is a bit more complicated... like for example creating a 2nd OB1. See if these thoughts work for you.
William_B Posts: 5225 Rating: (1195)
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2/12/2017 6:25 PM	Rate (0)
iadapt Posts: 10 Rating: (0)	Thank you I will try that.
iadapt Posts: 10 Rating: (0)
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