How to set the HSC1 S7200 to count pulse per second ??
the code below explain how to calculate Revolution per second:
'--------------------------------------------------
MAIN PROGRAM:
Network 1
LD SM0.1
CALL SBR0
Network2
LD FRIST_SCAN:SM0.1
MOVB 20, VB536
Network3
LD SM0.0
AN T33
TON T32, 500
Network4
LD SM0.0
A T32
TON T33, 50
'-----------------------------------------------
'------------------------------------------------
SUBROUTINE initialize_hsc1
Network1
LD SM0.0
MOVB 16#FC, SMB47
HDEF 1, 0
MOVD +0, SMD48
ATCH RPM:INT0, 21
ENI
HSC 1
'------------------------------------------------
'-------------------------------------------------
Interrupt RPM
Network1
LD SM0.0
MOVD HC1, VD200
MOVD +0, SMD48
MOVB 16#C0, SMB47
HSC 1
'------------------------------------
your Interrupt execute every 1 second trigger by Timer 32 on MAIN PROGRAM
and your Revolution per second store in VD200
Enjoy the to programming your PLC
