Kuhnke Electronics Instruction Manual

Remanent Data
PROGRAM operating time
� Operating hour counter:
This program compiles a count of the operating time
using elements from SystemData.
xrdata.SysVars.secs := xrdata.SysVars.secs +1 ;
IF xrdata.SysVars.secs >= 60 THEN
END_IF
xrdata.SysVars.secs := 0;
xrdata.SysVars.mins := xrdata.SysVars.mins +1 ;
IF xrdata.SysVars.mins >= 60 THEN
END_IF
xrdata.SysVars.mins := 0;
xrdata.SysVars.hors := xrdata.SysVars.hors + 1 ;
IF xrdata.SysVars.hors >= 24 THEN
END_IF
PROGRAM PLC_PRG
VAR
END_VAR
VAR RETAIN
END_VAR
xrdata.SysVars.hors := 0;
xrdata.SysVars.days := xrdata.SysVars.days + 1 ;
PLC_PRG
Checks if the extraremanent data are OK. Run "Clear" to
remove the data if they are not OK.
noof_SystemStarts counts the number of system starts.
Rema1 is a Retain variable. Use it to check the difference
to the extraremanent data.
flag: BOOL := TRUE ;
running: UDINT;
Start_OK: BOOL;
Clear: BOOL;
Rema1: UDINT;
122 E 700 GB