Digital Input Modules | Allen-Bradley 1790D-16BV0
The 1790D-16BV0 is a 24 VDC 16-point universal DC digital input base block from Allen-Bradley's CompactBlock LDX series. Equipped with D-shell connectors for field signal wiring and built-in DeviceNet network communication, it processes sinking or sourcing DC input signals to interface field sensors directly with DeviceNet control systems.
D-Shell Termination and Universal Sinking/Sourcing Inputs
The 16 digital input points are arranged in two 8-channel groups (inputs 0–7 and inputs 8–15) accessed through D-shell connectors. Each channel group utilizes dedicated common terminals (Com 0/Com 1 for inputs 0–7 and Com 2/Com 3 for inputs 8–15), allowing each bank to be independently wired for either PNP sourcing or NPN sinking field sensors.
Integrated DeviceNet Connectivity and Addressing
With embedded DeviceNet network capability, the module operates as an independent network node. Node addresses (0 to 63) are selected via front-panel rotary switches or configured over the network. The base block automatically detects standard DeviceNet baud rates (125 kbps, 250 kbps, and 500 kbps) upon connection.
Compact D-Shell Form Factor and Expansion
Featuring a compact IP20 open-style enclosure, the 1790D-16BV0 mounts onto standard 35 mm DIN rails or flat surfaces. An integrated expansion bus interface permits direct side-by-side connection to CompactBlock LDX expansion modules, allowing local I/O expansion under a single DeviceNet node address.
Specifications
| Parameter | Specification |
|---|---|
| Model | 1790D-16BV0 |
| Brand | Allen-Bradley |
| Product Family | CompactBlock LDX |
| Module Type | DeviceNet Digital Input Base Block (D-Shell) |
| Number of Inputs | 16 universal DC inputs |
| Input Logic | Sinking or Sourcing (selectable by 8-channel group) |
| Nominal Voltage | 24 VDC |
| Operating Voltage Range | 9.6 to 28.8 VDC |
| Input Impedance | 4.8 kilohms |
| Network Interface | DeviceNet (built-in) |
| Communication Rates | 125 kbps, 250 kbps, 500 kbps (Autobaud) |
| Node Address Configuration | Rotary switches (0–63) or software configuration |
| Field Termination | D-Shell Connectors |
| Enclosure Rating | IP20 |
| Mounting | DIN Rail or Panel Mount |
| Dimensions | 102 x 51 x 36 mm (4.0 x 2.0 x 1.4 in) |
| Weight | 0.38 lbs (0.17 kg) |
Frequently Asked Questions
Q: How does the 1790D-16BV0 differ from terminal-block CompactBlock LDX models? A: The 1790D-16BV0 utilizes D-shell connectors for rapid, pre-wired field cabling rather than screw-terminal blocks.
Q: How are sinking and sourcing inputs configured on the 1790D-16BV0?A: Wiring Com 1 (or Com 3) to 24 VDC (+) and Com 0 (or Com 2) to GND configures inputs 0–7 (or 8–15) as sinking, while reversing those connections configures them as sourcing.
Digital Input Modules | Allen-Bradley 1790D-16BV0
Digital Input Modules | Allen-Bradley 1790D-16BV0
The 1790D-16BV0 is a 24 VDC 16-point universal DC digital input base block from Allen-Bradley's CompactBlock LDX series. Equipped with D-shell connectors for field signal wiring and built-in DeviceNet network communication, it processes sinking or sourcing DC input signals to interface field sensors directly with DeviceNet control systems.
D-Shell Termination and Universal Sinking/Sourcing Inputs
The 16 digital input points are arranged in two 8-channel groups (inputs 0–7 and inputs 8–15) accessed through D-shell connectors. Each channel group utilizes dedicated common terminals (Com 0/Com 1 for inputs 0–7 and Com 2/Com 3 for inputs 8–15), allowing each bank to be independently wired for either PNP sourcing or NPN sinking field sensors.
Integrated DeviceNet Connectivity and Addressing
With embedded DeviceNet network capability, the module operates as an independent network node. Node addresses (0 to 63) are selected via front-panel rotary switches or configured over the network. The base block automatically detects standard DeviceNet baud rates (125 kbps, 250 kbps, and 500 kbps) upon connection.
Compact D-Shell Form Factor and Expansion
Featuring a compact IP20 open-style enclosure, the 1790D-16BV0 mounts onto standard 35 mm DIN rails or flat surfaces. An integrated expansion bus interface permits direct side-by-side connection to CompactBlock LDX expansion modules, allowing local I/O expansion under a single DeviceNet node address.
Specifications
| Parameter | Specification |
|---|---|
| Model | 1790D-16BV0 |
| Brand | Allen-Bradley |
| Product Family | CompactBlock LDX |
| Module Type | DeviceNet Digital Input Base Block (D-Shell) |
| Number of Inputs | 16 universal DC inputs |
| Input Logic | Sinking or Sourcing (selectable by 8-channel group) |
| Nominal Voltage | 24 VDC |
| Operating Voltage Range | 9.6 to 28.8 VDC |
| Input Impedance | 4.8 kilohms |
| Network Interface | DeviceNet (built-in) |
| Communication Rates | 125 kbps, 250 kbps, 500 kbps (Autobaud) |
| Node Address Configuration | Rotary switches (0–63) or software configuration |
| Field Termination | D-Shell Connectors |
| Enclosure Rating | IP20 |
| Mounting | DIN Rail or Panel Mount |
| Dimensions | 102 x 51 x 36 mm (4.0 x 2.0 x 1.4 in) |
| Weight | 0.38 lbs (0.17 kg) |
Frequently Asked Questions
Q: How does the 1790D-16BV0 differ from terminal-block CompactBlock LDX models? A: The 1790D-16BV0 utilizes D-shell connectors for rapid, pre-wired field cabling rather than screw-terminal blocks.
Q: How are sinking and sourcing inputs configured on the 1790D-16BV0?A: Wiring Com 1 (or Com 3) to 24 VDC (+) and Com 0 (or Com 2) to GND configures inputs 0–7 (or 8–15) as sinking, while reversing those connections configures them as sourcing.
