s7-300 pulse count
- Thread starter tulip
- Start date
In DBxx make a tag called "counter" type Integer
Then, as Longhorn said, on the rising edge of your product sensor increment or add 1 to the tag "counter".
Paul B
Member
With Siemens I've always found the standard counters lacking. You can build your own counter similar to what has been described.
If you want your counter logic to look like a box to simplify things when you call it:
You can write the add instruction, compare instruction, reset instruction, etc in an FC using inputs & outputs declared within the FC. Then when you call this FC it will look like a counter box you'd get in Allen-Bradley.
If you need more help then holler back.
If you want your counter logic to look like a box to simplify things when you call it:
You can write the add instruction, compare instruction, reset instruction, etc in an FC using inputs & outputs declared within the FC. Then when you call this FC it will look like a counter box you'd get in Allen-Bradley.
If you need more help then holler back.
Peter Nachtwey
Member
I too would make my own
I would use a DINT and add 1 every time there is a one shot rising.
I would use a DINT and add 1 every time there is a one shot rising.
L D[AR2P#0.0]
Lifetime Supporting Member
There is no practical limit as you can allocate the one-shot storage to bits in a DB - you will run out of space for the program long before you run out of space for the one shot stores.
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