Seeking help with custom variables in Zhejiang University’s control system
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Dear experts, how do I distinguish between 2-byte and 4-byte custom variables in the Zhejiang University SUPCON system? Single-byte and 8-byte variables are relatively easy to understand, but how can I determine whether a given custom variable is 2-byte or 4-byte?
This is similar for all DCSs and PLCs, right? If you really don’t know how, go to Taobao and buy a tutorial to take a look.
1-byte variable: BOOL type, used for defining buttons, soft switches, etc. 2-byte variables: half-precision floating point type (the same as the AIAO signal type used in field data acquisition), signed integer type, and descriptive quantities. 4-byte variables: unsigned integer type. 8-byte variables: cumulative quantities
It depends on how many value ranges this variable actually needs
Why is the AIAO signal type collected on-site of half-precision floating-point type?
The range of 2-byte half-precision floating-point values is basically only from -7 to 7, right? So why can some custom compensation flows also be represented as 2-byte half-precision floating-point values?