Counter Settings - Measurement Computing IOtech 6224 User Manual

Counter Input
The 6224 has four 32-bit counter inputs that accept frequency inputs up to 20 MHz. The counter inputs are
individually configurable for counter or encoder measurements.
You activate each input, enable logging, and configure counter options with Encore.

Counter Settings

Counter Source
Counter Gate
Count Settings
Counter Source
Direction
Counter Source
Detection
6224 User's Manual
The source to use for the counter. Choices are:
 Internal Clock
 Timer 1
 Timer 2
 Digital Line 0 – Digital Line 7
One source can be used in multiple counters.
The gate to use for the counter. Choices are:
 Unused (do not gate the counter)
 Internal Clock
 Timer 1
 Timer 2
 Digital Line 0 – Digital Line 7
One gate can be used in multiple counters.
The functions or values for the counter source. Choices are:
 Clear on Read – The counter counts up and is cleared after each read. By default,
the counter counts up and only clears the counter at the start of a new scan
command. The value of the counter before it is cleared is latched and returned.
 Totalize – The counter counts up and is cleared at the start of a new scan.
 Start Count value – The value used to start counting. The default is zero.
 Stop Count value – The value used to stop counting. The default is 65535.
 Rollover – The count rolls over upon reaching the start or stop value.
The direction in which to count. Choices are:
 Increment – Count up (default).
 Decrement – Count down.
The count to detect in relation to the signal edge. Choices are:
 Rising Edge – Detects the count when the signal goes from low to high.
 Falling Edge – Detects the count when the signal goes from high to low.
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Counter Input 4-1