DGH Corporation, D2601, D2600 Programmable Frequency Input Module, Frequency/RS-232
Features:
- Input protection to 250Vac.
- One digital input (/Events counter on 160x and 161x modules).
- ASCII format command/response protocol
- 500V rms analog input isolation
- 15 bit measurement resolution
- Continuous self-calibration; no adjustments of any kind
- Programmable digital filter
- Digital limit setting and alarm capability
- Digital inputs and outputs connect to solid state relays
- Events counter to 10 million
- Requires +10V to +30Vdc unregulated supply
- Screw terminal plug connectors supplied
- Provides intelligent features not found in the D1000
- ASCII output scaled to desired engineering units
- User programmable nonlinear transfer function
- Straight-line segment approximation: up to 24 segments
The D2600 programmable Frequency input modules measure frequency and pulse signals. The frequency modules measure between 1Hz and 20Khz and the pulse input modules measure signals between 100uS and 30Seconds.
The Frequency and pulse input modules provide an isolated 15-bit measurement, analog to digital conversion and a linearized data output scaled in engineering units. The D2600 series programmable frequency input modules include user-selectable scaling of the ADC output data values to desired engineering units that match the application. See the Programming Supplement for more details and examples.
The D2600 series modules provide one discrete digital input that can also be used as a low speed events counter input. The D2600 programmable frequency input modules can be mounted on a DIN-rail using the MK-1 mounting kit.
For more information, please see 
Data Sheet
