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2 Ch Digital Input

2 Ch Digital Input

This Up/down counter 24 VDC, 100 kHz, 32 bit counter depth counts binary pulses, and transmits the counter state, in an electrically isolated form, to the higher-level automation device.

The AKT2G-DN-002 EtherCAT Terminal can alternatively be operated as:

  • a single-channel counter (32 bit) that can be toggled between counting up and down via the U/D input (delivery state)
  • a single-channel counter (32 bit) that is controlled via the gate connection
  • two separate logic counters (32 bit) that can count in one direction only with the Clock 1 and Clock 2 inputs

The signal state of the inputs and outputs is indicated by light emitting diodes. The two outputs (Output 1 and Output 2) are switched in relation to the counter value and can thus be used as fast control signals for field devices. The AKT2G-DN-002 supports distributed clocks, i.e. the input data can be monitored synchronously with other data that are also linked to distributed clock terminals. The accuracy across the system is < 100 ns.

Product available worldwide


Technical Data AKT2G-DN-002-000
Number of counters     1 or 2
Rated voltage 24 VDC (-15%/+20%)
Signal voltage “0” -3 V ... 5 V (EN 61131-2, type 1)
Signal voltage “1” 15 V ... 30 V (EN 61131-2, type 1)
Counting frequency 100 kHz
Counter depth 32 bit
Input current typ. 5 mA (EN 61131-2, type 1)
Output current (per channel) max. 0.5 A (short-circuit-proof)
Distributed Clocks (DC) yes
Current consumption power contacts typ. 14 mA + load
Current consumption via E-bus typ. 130 mA
Electrical isolation 500 V (E-bus/field voltage)
Supports NoCoeStorage function yes
Weight approx. 50 g
Permissible ambient temperature range during operation -25°C ... +60°C (extended temperature range)
Permissible ambient temperature range during storage -40°C ... +85°C
Permissible relative humidity 95%, no condensation
Dimensions (W x H x D) approx. 15 mm x 100 mm x 70 mm
Mounting on 35 mm mounting rail conforms to EN 60715
Vibration/shock resistance conforms to EN 60068-2-6 / EN 60068-2-27, see also Mounting and Wiring of I/O Terminals
EMC immunity/emission conforms to EN 61000-6-2 / EN 61000-6-4
Protection class IP20
Installation position variable
Approval CE ATEX, cULus

Media & Downloads

Title File Language Date Share URL
AKT2G I/O Manual EN English
Share URL /sites/default/files/public_downloads/AKT2G_IO.pdf
Title File Language Date Share URL
AKT2G-SDI-004-000 TUV Certification English
Share URL /sites/default/files/public_downloads/AKT2G-SDI-004%20TUV%20Certitication%20Rev.00.pdf
AKT2G-SDO-004-000 TUV Certification English
Share URL /sites/default/files/public_downloads/AKT2G-SDO-004%20TUV%20Certitication%20Rev.00.pdf
Kollmorgen EU Declaration of Conformity AKT2G (DE) German
Share URL /sites/default/files/public_downloads/ce_AKT2G%20IO_d.pdf
Kollmorgen EU Declaration of Conformity AKT2G (DE) English
Share URL /sites/default/files/public_downloads/ce_AKT2G%20IO_e.pdf


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