6/3/2023 2:10 PM | |
Joined: 9/27/2006 Last visit: 9/23/2024 Posts: 12282 Rating: (2685)
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Hello eng auto; You are correct, the S7-300 can only process a warm restart, whish is why your OB1 will always reply with 16#1 when you interrogat the OB1_SCAN1 byte. The S7-400 allows you to choose between warm, hot or cold restart, depending on the switch setting amd your implementation of your startup OB, OB100 (warm restart). OB101 (hot restart) or OB102 (cold restart). The best information you have on this is the Programming with Step 7 manual (see the screenshot below), which has been designed for S7ep 7 v5.6 but still applies for programming under TIA Portal: https://support.industry.siemens.com/cs/ca/en/view/109751825 Darius provided further details from the step 7 help files in this discussion: https://support.industry.siemens.com/forum/ca/en/posts/restart/27794 Hope this helps, Daniel Chartier |
Last edited by: dchartier at: 06/03/2023 14:12:22 |
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