AS Series Programming Manual Symbol Xno ： The starting device number of X to refresh n ： Number of I/O points states to refresh _6 Filter ： Filtering time to refresh (unit: µs) Explanation 1. This instruction works only with AS series (FWV1.06.00) and ISPSoft V3.06 or later versions. 2. Xno is the starting input number to refresh. Length is the length to refresh. If the X point is the built-in input point of a CPU, when Xno is X0.3, the value of Length is 3, after executing the REFF instruction, the input filtering time of X0.3 ~ X0.5 are refreshed.
Since X input point of the extension module is grouping in 8 for a unit, when Xno is X1.9 and the value of Length is 3, after executing the REFF instruction, the input filtering time of X1.8 ~ X1.15 are refreshed. When Xno is 1.3, and the value of Length is 3, after executing the REFF instruction, the input filtering time of X1.0 ~ X1.7 are refreshed. When Xno is X1.3 and the value of Length is 9, the input filtering time of X1.0 ~ X1.15 are refreshed. 3. Xno and Length should be set in the input of PLC input system. If the setting exceeds the range, even if you have executed REFF instruction, the I/O will NOT be refreshed and error message will NOT be shown. 4.
If the X point is the built-in input point of a CPU, the filtering time unit is µs. While if the X point is the input point of 6-176 API Instruction code Operand Function 0602 REFF P Xno, Length, Filter Refreshing the I/O filtering time Device X Y M S T C HC D FR SM SR E K 16# “$” F Xno Length Filter BOOL WORD DWORD LWORD UINT INT DINT LINT REAL LREAL TMR CNT STRING Data type Xno Length Filter Pulse instruction 16-bit instruction 32-bit instruction AS AS －