VIPA System 300S SPEED7 CPU 313SC/DPM - Page 107

Manual VIPA System 300S SPEED7 Chapter 5 Deployment I/O periphery
HB140E - CPU SC - RE_313-6CF03 - Rev. 07/45 5-21
Main counting direction forward
• The counter counts starting with the load value.
• When the counter reaches the end value –1 in positive direction, it
jumps to the load value at the next positive count pulse and the gate is
automatically closed.
• To restart the count process, you must create an edge 0-1 of the gate.
The counter starts with the load value.
Valid value range
Limit value -2 147 483 646 (-2
31
+1) to +2 147 483 646 (2
31
-1)
Lower count limit -2 147 483 648 (-2
31
)
end value
lower
counter limit
load value
0
overflow
underflow
time
counter value
gate stop
automatically
gate stop
automatically
gate start
gate start
Main counting direction backwards
• The counter counts backwards starting with the load value.
• When the counter reaches the end value +1 in negative direction, it
jumps to the load value at the next negative count pulse and the gate is
automatically closed.
• To restart the count process, you must create an edge 0-1 of the gate.
The counter starts with the load value.
Valid value range
Limit value -2 147 483 646 (-2
31
+1) to +2 147 483 646 (2
31
-1)
Upper count limit +2 147 483 646 (2
31
-1)
upper
counter limit
load value
0
gate start
time
counter value
gate stop
automatically
gate start
end value
gate stop
automatically