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DP Send (FC7) Block going into fault mode
Created by: Anil Belkery at: 5/18/2010 5:37 PM (1 Replies)
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| 5/18/2010 5:37 PM | |
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Posts: 52 Rating:
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Hi All, I am using CPU 315-2 DP and CP 342-5 DP (6GK7 342-5DA02-0XE0/ V5.0). CP 342-5 is communicating with Simocodes through the standard Siemens Blocks (FC 7 DP_Send & FC 8 DP_Recv). When iStop & Startthe CP 342-5 DP module DP receive works fine but DP send block goes into fault mode with error code (16#80b1) when i do thesame thing again it works fine. In short when i Stop - Start (restart) Profibus card everyalternate timeDP send block goes into fault mode withno Fault indications on CP Card
AttachmentProfibus CP.zip (189 Downloads) |
| 5/19/2010 12:28 PM | |
Joined: 12/9/2009 Last visit: 10/30/2025 Posts: 156 Rating:
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Hello, It`s strange "The number of data bytes to be sent exceeds the upper limit for this service (applies to DP master and DP slave mode)". But the E/A-adress area in hardware configuration and on the function blocks match each other. I have found the following article: "What should you watch out for when configuring a CP342-5 as DP master?" http://support.automation.siemens.com/WW/view/en/18208090 Perhaps it helps you. Good luck. Little Holmes |
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