Allen-Bradley 1794-IB16/A FLEX I/O Digital DC Input Module
$123.00
$320.00
Description
Allen-Bradley 1794-IB16/A FLEX I/O Digital DC Input Module
Configured for 24 VDC field signal acquisition in the FLEX I/O network, the Allen-Bradley 1794-IB16/A (1794-IB16 Digital DC Input Module) provides direct electrical interface between sink/source input devices and Allen-Bradley PLC systems through FLEX I/O adapter modules.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 1794-IB16/A |
| Brand | Allen-Bradley / Rockwell Automation |
| Origin | United States |
| Dimensions | 46 x 94 x 53 mm |
| Operating Temp | 0 deg C to +55 deg C |
| Power Consumption | 30 mA @ 5 VDC Flexbus current; max. 6.1 W @ 31.2 VDC |
| Module Type | Digital DC Input Module |
| Series | FLEX I/O Series |
| Number of Inputs | 16 points, non-isolated |
| Input Type | Current sinking, compatible with 24 VDC source input devices |
| Nominal Voltage | 24 VDC |
| Operating Voltage Range | 10 VDC to 31.2 VDC |
| On-State Voltage | 10 VDC minimum to 31.2 VDC maximum |
| Off-State Voltage | 5 VDC maximum |
| On-State Current | 2.0 mA minimum @ 10 VDC; 8.2 mA nominal @ 24 VDC |
| Off-State Current | 1.5 mA maximum |
| Input Impedance | 4.6 kohm nominal |
| Input Delay Time | 0.5 ms to 16 ms selectable hardware delay; 0.5 ms default |
| Status Indicators | 16 yellow channel status LEDs |
| Compatible Terminal Bases | 1794-TB3, 1794-TB3S, 1794-TBN, 1794-TB32, 1794-TB3G, 1794-TB3GS |
| Storage Temperature | -40 deg C to +85 deg C |
| Relative Humidity | 5% to 95% non-condensing |
| Vibration / Shock | 5 g @ 10 to 500 Hz / 30 g operating shock |
EtherNet/IP and FLEX I/O Backplane Interface Characteristics
The 1794-IB16/A operates as a distributed FLEX I/O input node connected through FLEX I/O adapter modules including 1794-AENT, 1794-APB, and 1794-ASB. The module transfers channel state information through the FLEX I/O backplane interface while maintaining compact I/O density for distributed control cabinets.
The FLEX I/O architecture supports I/O density scaling by allowing multiple field interface modules to be installed on terminal base units without individual field wiring removal during module replacement. The module uses channel-level LED indication for direct verification of input device states during commissioning and maintenance.
Frequently Asked Questions
Q: Can the 1794-IB16/A be removed while the FLEX I/O system remains powered?
A: The module supports removal and insertion under power (RIUP) when used with compatible FLEX I/O terminal bases. Field wiring remains connected through the terminal base during module replacement.
Q: What type of field devices can connect to the input channels?
A: The module accepts 24 VDC digital signals from sink input circuits compatible with devices such as limit switches, photoelectric sensors, proximity switches, and pushbuttons.
Q: What affects input response time on this module?
A: Input response is determined by the selectable hardware input delay setting, configurable from 0.5 ms to 16 ms.
Field Installation Guidelines
Install the 1794-IB16/A on the specified FLEX I/O terminal base unit and verify correct mechanical engagement before applying field power. Confirm that the terminal base wiring matches the required input polarity and device type.
Route digital input wiring separately from high-current motor conductors and switching power circuits to reduce electrical interference. Use appropriate cable shielding practices where signal noise conditions require additional protection. Connect shields according to the cabinet grounding standard and avoid creating unintended ground loops.
Verify adapter communication status, module seating, channel LED indication, and input device operation during commissioning. Confirm that firmware compatibility between the FLEX I/O adapter and controller platform matches the installed system configuration.
Features
Minimum Order Quantity (MOQ)
We welcome bulk orders and have a minimum order quantity of just one unit.
Certificates and Documentation
Upon request, we can provide all necessary documentation, including Certificates of Origin/Conformance and other required export documents.
Delivery Time
For items in stock, we aim to deliver within 1-3 days after payment confirmation. Items with specified lead times will be delivered according to the quoted schedule.
Payment Methods
We accept 100% T/T (Telegraphic Transfer) payment before shipping. For items with lead times, a 30% deposit is required upfront, with the remaining 70% due before shipment. For RMB transfers, please contact us if you have an agent in China.
Warranty
We offer a standard one-year warranty on all new and original items. If you require an extended warranty, please contact us for additional cost details.
Refund and Return Policy
Your satisfaction is important to us. If you need to return an item, it must be done within 30 days of the order date. The product must be unused, unopened, and in its original packaging with all accessories included. Refunds are processed within 5-7 business days after we receive the returned item. Please note that shipping and related charges are non-refundable.
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