A CPU module has a rotary switch (0 to F) for setting the CPU No. on its front. What CPU No. should I set?

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  • GLOBAL > PLC > SPH > Main unit > A CPU module has a rotary switch (0 to F) for setting the CPU No. on its front. What CPU No. should I set?
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  • Displayed Date : 2023/04/25 19:00
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A CPU module has a rotary switch (0 to F) for setting the CPU No. on its front. What CPU No. should I set?

A CPU module has a rotary switch (0 to F) for setting the CPU No. on its front. What CPU No. should I set?
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Answer

Usually, set the CPU No. to 0. The CPU No. 0 works as a master of an SX bus system.
In a multi-CPU system or a CPU redundant system which uses multiple CPU modules on one SX bus system, specify a different CPU No. for each CPU module (usually, a serial number starting from 0).
The setting range of the CPU No. is 0 to 7. Do not set to 8 to F.

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