Our Bulletin 1790D CompactBlock™ LDX I/O modules are a cost-effective distributed I/O solution for light industrial environments where high-protection specifications and advanced performance features are not required. Base blocks include I/O points and a built-in DeviceNet™ network adapter. Digital I/O expansion blocks provide the flexibility to add I/O points to your CompactBlock LDX I/O system.
Overview
- Includes compact package for easy installation in confined areas, including wireways and operator terminals
- Offers base blocks that provide 4…32 I/O points
- Includes built-in DeviceNet™ network connectivity
- Allows addition of expansion blocks to a base block for up to 80 points per node
- Includes universal sink/source inputs which reduce the number of components to stock and provide flexibility of input types
- Includes node address switches and autobaud rate detection which simplifies network commissioning
- Offers fixed screw terminals for convenient disconnection
1790 CompactBlock™ LDX Digital I/O Base Blocks
- 24V DC, 120V AC, and relay outputs
- Up to 32 I/O points per block
- Each base block supports up to three expansion blocks
1790 CompactBlock LDX Analog I/O Base Blocks
- Up to four I/O points per block
- 16-bit integer data format
- Each base block supports up to two expansion blocks
1790 CompactBlock LDX Thermocouple and RTD I/O Base Blocks
- 16-bit integer (2's complement) data format
- Thermocouple and RTD base blocks do not support expansion blocks
1790 CompactBlock LDX Digital I/O Expansion Blocks
- Add to base blocks to expand the I/O assembly up to 80 I/O points
- 24V DC, 120V AC, and relay outputs
- 8 or 16 I/O points per block
- Compatible with all base blocks, except for thermocouple and RTD base blocks
- Includes 7-cm ribbon cable connector
Software
Documentation
| Resource | Publication Number | Language |
|---|---|---|
| CompactBlock I/O, CompactBlock LDX I/O Selection Guide | 1790-SG001 | |
| CompactBlock LDX I/O for DeviceNet Technical Data | 1790D-TD001 | |
| CompactBlock LDX Analog I/O User Manual | 1790-UM001 |
Certifications
- cULus Class I Div 2 Hazardous
- CE Marked
- C-Tick
- ODVA
- Enclosure meets IP20
Certifications apply when product is marked. See our Product Certification site for Declarations of Conformity, certificates and other certification details.