S7-300 subritune

[Moustafa Elsherief]

Hello every body

I implement fc which count delay time to start motor and another delay to off the motor

this subroutine function not include any timer or counter just adder which increment MW by 1 every second.

I should called this function 32 time for 32 motor into OB1.

But it works for first network and the other 31 not even response

 

[Mike_RH]

Post your logic for the FC.

 

[Moustafa Elsherief]

A #START
S #SIGNAL
A #STOP
R #SIGNAL
NOP 0

A "1 Sec"
A #SIGNAL
= #L000
FP #MON
JNB _00b
L #On_delay_time
L 1
+I
T #On_delay_time
_00b: NOP 0


L #On_delay_time
L #SeConds_to_on
>=I
S #CMD


A "1 Sec"
AN #SIGNAL
= #L001
FP #MOFF
JNB _00A
L #Off_delay_time
L 1
+I
T #Off_delay_time
_00A: NOP 0


L #Off_delay_time
L #seconds_to_off
>=I
R #CMD

 

[Reksio]

I think you should be calling FC timers with the S5TIME data values and not with Memory Words. Also, I would make these changes, save them onto eprom and do a cold restart, then try them.
Also press Ctrl Q on your screen and then paste the logic here.

 

[Mike_RH]

Use an FB instead of a FC.
Then use multi instance calls to the IEC ondelay and offdelay timers (SFB4 and SFB5)

 

[L D[AR2P#0.0]]

You cannot use temp variables in an FC to store data between calls, your FP #MON instruction being a case in point. Use an FB and declare the variable in the STAT section.