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Red I/O using FB450 &FB451

11/10/2010 8:46 PM	Rate (0)
ELSAVAN Posts: 24 Rating: (0)	Dear experts I am looking for some example and instruction on how using FB450 &FB451 and sample projest? thanks
ELSAVAN Posts: 24 Rating: (0)
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11/11/2010 12:35 AM	Rate (0)
H-H Platinum Member Joined: 7/2/2008 Last visit: 12/21/2025 Posts: 929 Rating: (309)	Hello ELSAVAN , The instructions on how to use RED I/O blocks can be reached when you hit F1 on each block under the RED IO library in SIMATIC Manager. For a sample project, please check this thread. Best regards. H-H

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8/23/2017 9:26 PM	Rate (0)
AutoGen_243365 Posts: 3 Rating: (0)	Well, the F1 help doesn't really tell you what you need to know. It says things like: FB 450 reads the input signals of the redundant I/O that is assigned to the process image partition of the priority class of the calling OB. The information about which partial process image is assigned to which OB is also included. But a simple example showing these necessary and not intuitive steps would be greatly appreciated by anyone just starting this trek. The example in the SAMPLES doesn't show any Analog redundancy. I would really like to see Siemens or someone else post a sample project with the minimum amount of configuration and code to get AI and AO working. A simple read the AI and write the value to the AO would be fantastic.
AutoGen_243365 Posts: 3 Rating: (0)
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