Set parameters of S5TIME type in PLC by upper level or touch screen - Database & Sql Blog Articles

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1. Write the integer INT or real REAL from the host computer to the plc. First, the value must contain the time value in milliseconds. After writing to the data storage area of ​​the PLC, use ITD (IntegertoDoubleInteger) or RND (RealtoDoubleIntegerwithRoundingOff) The value is converted to double-shaping, then the value is written to a variable of type TIME, FC40 is called in the program, and TIME is converted to S5TIME.

2. Write WORD from the host computer to the PLC. First, the value must include the time value in units of a certain time base. After writing to the data storage area of ​​the PLC, use the WOR_W instruction under WordLogic to compare the value with its time base. Then use the MOVE instruction to write the obtained value into the variable of type S5TIME.

3. If you use WinCC as the upper software, or the upper software supports 32-bit signed floating point numbers, you can write 32-bit signed floating point numbers from the upper level to the variables defined as TIME in the PLC, and then call FC40 in the program to convert TIME into S5TIME is all right.