D2600 Programmable Frequency Input Modules


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. Accumulator versions are also available.

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 scaled data is communicated using either RS-232 or RS-485.

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.

Download Datasheet

Download Full Scaling Overview

Download Programming Supplement

Download Manual

The D2600 programmable frequency input modules can be mounted on a DIN-rail using the MK-1 mounting kit.

Additional Information

Dimensions 3.6 × 2.45 × 1.1 in

• Input Impedance: 1megohm min.
• Switching Level: selectable 0V, +2.5V.
• Hysteresis: Adjustable 10mV to 1.0V.
• Input protection to 250Vac.
• One digital input (/Events counter on 160x and 161x modules).

Frequency and Timer Inputs

• Resolution: 0.005% of reading + 0.01Hz. • Input signal level without damage: 250Vac. • Accuracy: +/-0.01% of reading plus +/-10uS. • Tempco: +/-20ppm/deg C.

Events Counter Input

• Input Bandwidth: 60Hz, (optional 20Khz).
• Up to 10 million positive transitions.
• Input signal level without damage: +/-30Vdc max.

Accumulator Input

• Pulse count: Up to 10 million positive transitions. • Resolution: 0.005% of reading + 0.01Hz (frequency). • Resolution: 0.005% of reading plus 0.01uS (timer). • Accuracy: +/-0.01% of frequency reading +/-0.01Hz. • Accuracy: +/-0.01% of timer reading plus 10uS. • Tempco: +/-20ppm/deg C.


RS-232 Only, RS-485 Only

Click outside to hide the comparison bar