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Appendix A: Technical Specifications
A.1 Functional Specifications
Count modes
supported
Count/Direction, Add-Add, Add-Subtract, Subtract-Subtract,
Quadrature and Reverse Quadrature, Rate, and Batch
Batch modes
supported
Dual mode: Primary and Secondary counts share common
input, but with independent scaling and resets.
Batch mode: Secondarey Count incremented when Primarey
Count Auto Reset occurs.
Count Inputs
2: Channel A (Primary) and Channel B (Secondary / Dir
control)
Miscellaneous
inputs
2: Reset (Count Reset) and User (Count Inhibit).
Count range
(internal)
-2,147,483,648 to +2,147,483,648
Maximum count rate
20 Khz (Standard and Quadrature X1 modes)
5 Khz (Quadrature X4 mode)
Min pulse width
5 uS (Standard mode)
Display Digits
6-digit, 7-segment with leading zero blanking
Display Decimal
Point
User-programmable
Display LEDs
Red 0.56" (14.2mm), high efficiency
Display Range
- 99,999 to + 999,999 (Independent of decimal position)
Output channels
2, with front panel indicator for each
Output modes
Disabled, Timed, Latching, and Boundary
Delay times
0.01 to 599.99 sec -2.5 ms/+15ms
Output Response
time
Latched and timed modes: < 5ms
Boundary mode: < 15 ms
Batch: <15 ms
Multi-tasking
Operation
Count and output control maintained while in programming
mode.
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