SetCtrSV n, value |
Purpose | Change the Set Value (S.V,) of the Counter #n to value .
This statement to allow the user to modify the S.V. of the PLC internal counters
without changing the source program. A TBASIC function can be written easily to make use
of a few digital or analog inputs to modify the SV of these internals timers/counters. The
new S.V is also stored in the program EEPROM and hence is non-volatile. (See sample
program "set_TCSV.PC4") n
- between 1 and 128. For F-series PLC the new S.V is stored in the onboard FRAM and hence is non-volatile. (See sample program "set_TCSV.PC4"). For Nano-10 and FMD PLC, the new S.V. are only stored on RAM-shadowed CPU flash memory and is normally volatile unless a RESET or SETSYTEM 252,0 command has been executed which forces a backup of the RAM shadow to the CPU flash memory. Programmer should therefore use this command sparingly. Note that TBASIC custom funciton can start a counter simply by setting its CTRPV[] variable to any integer value between -1 (reset counter) and 9999 so it is not necessary to change the counter S.V.. |
Examples | SetCtrSV 10,1234 SetCtrSV 3, GetCtrSV(3)+10 |
Comments: | Counter #10 will assume a S.V. of 1234.. S.V of Counter #3 will be increased by 10. Related : The present values (P.V.) of counters can be read or written directly as integer variables "CtrPV[n]". But the Set Values can only be changed by this function. |
See Also | GetCtrSV( ), GetTimerSV( ) , SetTimerSV |