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$380.00 (USA and Canada only)

Availability: In stock
AC/DC discrete input, 24 channels, 2.0-16 VAC/VDC

Production Specification

The GRV-IACDCTTL-24 digital input module can sense the on or off status for up to 24 AC or DC devices between 2.0 and 16 volts. Its 24 channels are not isolated from each other; all channels share a common reference terminal.

The GRV-IACDCTTL-24 module offers a full set of features:
  • On/off state
  • On/off latching
  • On/off totalization
  • Frequency measurement 
  • Period measurement 
  • Pulse measurement

The GRV-IACDCTTL-24 module mounts on a groov EPIC® chassis alongside a GRV-EPIC-PR1 processor and other digital, analog, and serial groov I/O modules to provide the mix of signals you need at any location. 

NOTE: For projects with simple requirements, see the GRV-IACDCTTLS-24 module, which is lower cost and offers on and off sensing only.

Number of channels 24 24
Channel-to-channel isolation    
On/off state x x
On/off latching x  
On/off totalization x  
Frequency measurement x  
Period measurement x  
Pulse measurement x  
Input Voltage 2–16 VAC / VDC 2–16 VAC / VDC
Turn-on Voltage 2.0 VAC (Peak) / VDC 2.0 VAC (peak) / VDC
Turn-off Voltage 0.8 VAC (Peak) / VDC 0.8 VAC (Peak) / VDC
Input Impedance (±5%) 2 kOhms 2 kOhms
Max. Freq. (50% square wave 5 Vp-p) 2000 Hz N/A
IEC Input Type N/A N/A
Isolation (field-to-logic) 300 V working, 1500 V transient (1 minute) 300 V working, 1500 V transient (1 minute)
Isolation (channel-to-channel) None None
Number of Channels 24 24
Chassis Power Consumption 1.0 W 1.0 W
Wire Size 28–14 AWG 28–14 AWG
Torque, connector screw 2.5 in-lb (0.28 N-m) 2.5 in-lb (0.28 N-m)
Torque, hold-down screw 3.5 in-lb (0.4 N-m) 3.5 in-lb (0.4 N-m)
Temperature (operating) -20 °C to +70 °C -20 °C to +70 °C
Temperature (storage) -40 °C to +85 °C -40 °C to +85 °C
Relative Humidity (non-condensing) 5–95% 5–95%
Agency Approvals UL/cUL (Class 1 Div. 2)a; CE, ATEX (Category 3, Zone 2), RoHS; DFARS; CB Scheme; UKCA
Warranty Lifetime Lifetime
a For use in hazardous locations, equipment must be mounted in an enclosure that meets the requirements of the National Electrical Code, ANSI/NFPA 70, and ANSI/ISA-61010-1 (82.02.01).

groov 2–16 VAC VDC Input Modules Data Sheet

groov® 2–16 VAC/VDC input modules are part of Opto 22's groov EPIC® System. This document includes descriptions, specifications, and wiring and dimensional diagrams for the following part numbers:

groov I/O Modules Firmware Release Notes

This document lists the latest updates to the firmware for groov I/O modules. It includes information on new features, enhancements, and bug fixes.

List of groov I/O module firmware download pages

Note: This document was formerly called a readme. The name was changed to more accurately describe its content.

UKCA Declaration of Conformity (groov EPIC and groov RIO)

This document is the Manufacturer's Declaration of Conformity for the products listed herein, in accordance with the rules, regulations and standards of the United Kingdom. The models cited have been tested to the essential requirements listed in the Standards section, and fully comply with the legislation as listed in UK Legislation section.

ATEX Letter of Conformity for groov EPIC

This ATEX Letter of Conformity is provided to support CE Declaration of Conformity (groov EPIC and groov RIO), form 2261.

Declaration of Conformity (groov EPIC and groov RIO)

This document is the Manufacturer's Declaration of Conformity for the products listed herein, in accordance with European, international, and/or national standards and regulations.

GRV-IACDCTTL-24 Module Firmware

This download contains current firmware for the GRV-IADCTTL-24 module. For a list of bug fixes and enhancements included in this firmware, see the groov I/O Modules Firmware readme document.

You can download the previous version of the firmware by clicking on this link: 1.3b1.3a1.0k

CAD Drawing: groov I/O Module

This ZIP file includes drawings in a variety of file formats (pdf, dwg, stp) that apply to all groov I/O modules.

Note: These drawings do not apply to groov RIO modules.

CAD Drawings: groov EPIC and groov RIO I/O wiring

This ZIP file contains I/O wiring diagrams for groov EPIC I/O modules and groov RIO models, in DWG format.

No videos or demos are available for this product.