GE PACSystems RX7i Cpu Programmer's Reference Manual

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GE PACSystems RX7i Cpu Programmer's Reference Manual Manual pdf 172 page image

Chapter 4. Ladder Diagram (LD) ProgrammingGFK-2950C February 2018 1574.8.8 Data Initialize ASCIIThe Data Initialize ASCII (DATA_INIT_ASCII) function copies a block of constant ASCIItext to a reference range.When DATA_INIT_ASCII is first programmed, the constants are initialized to zeroes. Tospecify the constant data to copy, double-click the DATA_INIT_ASCII instruction in theLD editor.When DATA_INIT_ASCII receives power flow, it copies the constant data to output Q.DATA_INIT_ASCII’s constant data length (LEN) specifies how many bytes of constant text are copiedto consecutive reference addresses starting at output Q. LEN must be an even number.DATA_INIT_ASCII passes power to the right whenever it receives power.Note: The output parameter is not included in coil checking.OperandsParameter Description Allowed Operands OptionalLength The number (default 1) of bytes of constant text copied toconsecutive reference addresses starting at output Q. LEN mustbe an even number.Constants NoQ The beginning address of the area where the data is copied. All except %S. NoExampleOn the first scan (as restricted by the #FST_SCN systemvariable) the decimal equivalent of 100 bytes of ASCII textis copied to %R00050 through %R00149. %Q00002receives power.