2/19/2014 2:09 PM | |
Joined: 8/31/2005 Last visit: 8/20/2024 Posts: 2198 Rating: (328)
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"operation on NaNs" means the CPU stopped because it should do a arithmetic calculation with a invalid floatingpoint value. (NaN=Not a Number) This happend when the block with the name "BN1_Receive.IMR_BEND_REF" (DAC: analoge output) was calculated. Inthe FM458 (and SIMADYN D, SIMATIC TDC and T400) the only way a NaN can get into the system is the communication. In your case, check if the value for the analoge output comes from the S7-CPU or any other communication partner. |
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4/22/2015 12:16 PM | |
Joined: 3/2/2007 Last visit: 10/16/2024 Posts: 938 Rating: (5) |
how did you solve the problem? thank you |
... thank you ... |
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