12 hours timer

[nasir_ash 0]

hi to all members i would like to program cqm1-cpu43, so that i would like to ON the output 100.00 for 12 hours and then output switches to 100.01 for 12 hours also and vice versa. when 100.00 is ON 100.01 is OFF, when it switches then 100.00 is OFF and 100.01 is ON. THANKS NASIR ASHFAQ

[nguyenthanhcanh 3]

Here is my sample program.

[BobB 58]

Not good to use a N/C output in this case. If the PLC turns off. output 100.00 will turn on. Better to use N/O bit 200.00 to turn on 100.00 and N/C bit 200.00 to turn on 100.01. Then if the PLC turns off both outputs turn off.

[nguyenthanhcanh 3]

BobB! You're right. This is better way when a execution condition is inserted to start/stop system or enable/disable output.