I have configured a multi-CPU system, but the system has run out of memory for the multi-CPU. Can I access the common general memory from the other CPU by using the direct read/write FB?

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  • GLOBAL > PLC > SPH > Main unit > I have configured a multi-CPU system, but the system has run out of memory for the multi-CPU. Can I access the common general memory from the other...
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I have configured a multi-CPU system, but the system has run out of memory for the multi-CPU. Can I access the common general memory from the other CPU by using the direct read/write FB?

I have configured a multi-CPU system, but the system has run out of memory for the multi-CPU. Can I access the common general memory from the other CPU by using the direct read/write FB?
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Answer

You cannot access general memory other than the memory for the multi-CPU from the other CPU. Access using the direct read/write FB is used for the access to the memory for the multi-CPU between CPU modules that are not connected with the same processor bus.

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