The 1791D-16B0X is a 16-Point expansion module from the CompactBlock I/O series of Allen-Bradley. This module has Sixteen (16) 24 VDC discrete inputs that support sinking configuration in Two (2) groups of Eight (8) inputs each. This module supports DeviceNet communication and integrated power supply. This module is compatible with PLC, SLC, or SoftLogix programmable controllers using DeviceNet scanners.
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Manufacturer | Rockwell Automation |
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Brand | Allen-Bradley |
Part Number/Catalog No. | 1791D-16B0X |
Manufacturer | Rockwell Automation |
Inputs per Block | 16 |
Brand | Allen-Bradley |
Input Type | Sinking |
Series | CompactBlock I/O |
Input Off-state Voltage | 5V DC max. |
Part Number | 1791D-16B0X |
Input On-state Voltage | 10V DC min. |
Product Description | Discrete Input Module |
Input Off-state Current | 1.5mA at 5V DC max. |
No. of I/O channels | Sixteen (16) |
Input On-state Current | 11mA at 30V DC max. |
No. of channel groups | Two (2) |
Outputs per Block | 0 |
No. of channels per group | No. of channels per group |
Output Type | N/A |
Input signal, nominal | 24 VDC |
Output On-state Voltage Range | N/A |
Input signal, range | 10-30 VDC |
Output On-state Current | N/A |
On state current | 11.0mA @ 30V, max; 2.0mA @ 10V, min. |
DeviceNet Power | N/A |
Off-state current | 1.5mA |
Enclosure | IEC IP20 |
LED indicators | Mod/Net status - red/green; Logic status - green; I/O status - yellow |
Communication rate | Thick Cable: 125Kbps @ 500m (1600ft) 250Kbps @ 200m (600ft) 500Kbps @ 100m (330ft) Flat Media: 125Kbps @ 420m (1230ft) 250Kbps @ 200m (490ft) 500Kbps @ 75m (245ft) |
I/O exchange | Poll, Cyclic, Change of State (CoS) |
The 1791D-16B0X is an Allen-Bradley manufactured discrete input device. This is part of the CompactBlock I/O series which features Sixteen (16) input channels that support sink wiring configuration. This module is typically used as part of a distributed I/O station and compatible with functioning as I/O devices of Allen-Bradley’s PLC2-2, PLC-3, and PLC-5 series, SLC 500, or SoftLogix programmable controllers using DeviceNet scanners. The 1791D-16B0X input channels accept an input signal voltage range of 0-30 VDC with a minimum On-state voltage of 10 VDC and maximum On-state voltage of 30 VDC at 40 Degree Celsius and 24 VDC at 60 Degree Celsius. Similarly, the minimum On-state current is 2 mA at 10 VDC while the maximum On-state current is 11 mA at 30 VDC. This module comes with built-in LED status indicators such as Mod/Net Led which is a bi-color LED; Logic Status and I/O status LED. The 1791D-16B0X comes with an integrated DeviceNet communication terminal. When using Thick physical media, supported communication rates are 125Kbps @ 500m (1600ft), 250Kbps @ 200m (600ft) and 500Kbps @ 100m (330ft). When utilizing Flat cable for DeviceNet communication, supported transmission rates are 125Kbps @ 420m (1230ft), 250Kbps @ 200m (490ft) and 500Kbps @ 75m (245ft). This module is configurable to implement Polled, Change of State (CoS) and Cyclic I/O exchanged. When connecting input signals to the 1791D-16B0X, the appropriate conductor size is 14 gauge (2mm2) stranded wire with 3/64 inch, maximum insulation thickness. It supports DIN rail mounting and comes with an IP20 enclosure rating.
The Allen-Bradley 1791D-16B0X is a 16-sinking input expansion module that belongs to the CompactBlock I/O product series. It has an 11 mA at 30 Volts DC input on-state current and 1.5 mA at 5 Volts DC input off-state current. This module also has 16 inputs per block and holds an IEC IP20 enclosure type. It produces 3 bytes for every 16 inputs and consumes 2 bytes for every 16 outputs. The expansion power needed for this module is 5 Volts DC (voltage) and 100 mA (current). Its operating temperature ranges from 0 to 60 degrees Celsius. The CompactBlock I/O expansion modules, including the 1791D-16B0X block, can be added to any CompactBlock I/O base module to expand the I/O assembly up to 32 points. This module is mostly used for in-cabinet applications. It has 14 AWG Stranded connection cables and an isolation rating of 500 Volts AC I/O to DeviceNet. Each of the 1791D CompactBlock I/O modules carries the autobaud feature which allows it to detect the baud network rate upon connection to the live network. The 1791D-16B0X module can be mounted to a DIN rail or on a panel. This expansion module must be grounded first before installing. Yet, expansion blocks should NEVER be installed or uninstalled when power is put into the base. This may cause a destructive explosion in location installations. In addition, the 1791D-16B0X must be installed in an appropriate enclosure with a genuine wiring method that complies with electrical codes and regulations. The expansion dimensions for the 1791D-16B0X expansion module are 4.4 X 1.9 X 1.5 inches, and it weighs around 0.1 kilograms (0.3 pounds). Finally, this module has 5 to 95% relative humidity without condensing. This product is also CE marked, meaning that it has been certified for all relevant directives.
Revision Part # | Also known as | |
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1791D-16B0X Ser A | 1791D-16B0X/A, Series A, Rev A | Request a quote |
1791D-16B0X Ser B | 1791D-16B0X/B, Series B, Rev B | Request a quote |
1791D-16B0X Ser C | 1791D-16B0X/C, Series C, Rev C | Request a quote |
1791D-16B0X Ser D | 1791D-16B0X/D, Series D, Rev D | Request a quote |
Don't see your particular revision? Contact us now. |
The 1791D-16B0X has Sixteen (16) 24 VDC inputs channels.
When using Thick physical media, supported communication rates are 125Kbps @ 500m (1600ft), 250Kbps @ 200m (600ft) and 500Kbps @ 100m (330ft). When utilizing Flat cable for DeviceNet communication, supported transmission rates are 125Kbps @ 420m (1230ft), 250Kbps @ 200m (490ft) and 500Kbps @ 75m (245ft).
Supported I/O data exchange are Polled, Change of State (CoS) and Cyclic I/O exchanged.
The 1791D-16B0X input module is an expansion input module from the Allen-Bradley CompactBlock I/O 1791D series of I/O modules. It can be used to add more input channels to a base input module or base combination module or to add input channels to a base output module that has no inputs built into it. The 1791D-16B0X expansion input module has 16 sinking inputs. This expansion module produces 5 input bytes with a base input module, 3 input bytes with a base output module, and 4 input bytes with a combination base module. The 1791D-16B0X expansion input module supports 500 Volts AC each of I/O to DeviceNet isolation, I/O group to group isolation, and I/O group to logic isolation.
The 1791D-16B0X is a CompactBlock I/O module from Allen-Bradley. This module has 16 sinking input channels rated 24 VDC. Compared to standard I/O modules, the 1791D-16B0X has a rackless and compact design, able to operate as a stand-alone distributed I/O station having a built-in Devicenet communication capability and power supply circuit. In addition, this module supports DIN rail mounting.