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$295.00 (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 (Ѡ5%) 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); CE, ATEX(Category 3, Zone 2), RoHS; DFARS; CB Scheme UL/cUL(Class 1 Div. 2); CE, ATEX(Category 3, Zone 2), RoHS; DFARS; CB Scheme
Warranty Lifetime Lifetime

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 these modules.

Declaration of Conformity (GRV-EPIC)

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.

CAD Drawing: groov I/O Module

This ZIP file includes drawings that apply to all groov I/O modules. There are two drawings:

  • One drawing that shows the module cover in the lower position.
  • One drawing that shows the module cover in the higher position.

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: 1.0k

No videos or demos are available for this product.