2DI42561-010 B & R Automation
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The B & R Automation 2DI42561-010 is a controller module from the System 2010 Controllers series. It features 32 inputs divided into 8 groups, supports a nominal input voltage of 24 VDC, and uses optocoupler isolation between groups. The module offers both sink and source wiring modes and has a switching delay of 10 milliseconds.
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Product Description:
The 2DI42561-010 digital input module is produced by B&R Automation as part of the System 2010 Controllers series. Intended for factory control cabinets, the module accepts multiple 24 V field signals and forwards their logical state to the central processor. By translating on-machine sensor voltages into optically isolated circuits, it acts as the interface between discrete devices such as limit switches, proximity sensors, and push-buttons and the higher-level automation program.
Each channel is designed around a 24 VDC nominal signal, but it tolerates levels below 5 V for a logical low and above 15 V for a logical high, with an absolute ceiling of 30 VDC. A front-end resistor network of 4 kΩ limits current before the optocoupler, preventing excess dissipation and improving service life. Sink or source wiring can be selected so the same board accommodates PNP or NPN devices. Group-to-group isolation and input-to-processor isolation are both handled by optocouplers, while no isolation is provided within each group, keeping response symmetry inside each quartet of channels. The propagation delay from edge detection to bus reporting is 10 ms, which is suitable for standard PLC scan times.
The board is partitioned into 8 input groups, with 4 channels per group, giving a total of 32 digital inputs that the controller can access sequentially. The groups share a common supply yet maintain group-to-group isolation through the optocoupler barrier, allowing different machine sections to be referenced independently. That switching delay suits conveyor, packaging, and indexing tasks that do not demand sub-millisecond reaction. The module mounts on BP200/BP201/BP210 base plates, matching the mechanical pitch and back-plane connector used throughout the System 2010 rack so existing power and data buses can be reused without rewiring.
Frequently Asked Questions about 2DI42561-010:
Q: What is the maximum input voltage allowed on the 2DI42561-010 controller?
A: The 2DI42561-010 supports a maximum input voltage of 30 VDC.
Q: What nominal input voltage does the 2DI42561-010 require?
A: This controller is designed to accept a nominal input voltage of 24 VDC.
Q: How many inputs and input groups are available on the 2DI42561-010?
A: The 2DI42561-010 features 32 total digital inputs divided into eight groups with four inputs per group.
Q: How is isolation implemented between input groups and the PCC in the 2DI42561-010?
A: Input-to-PCC and group-to-group isolation on the 2DI42561-010 is achieved using optocouplers.
Q: Which base plates can be used with the 2DI42561-010 controller?
A: BP200, BP201, and BP210 base plates are compatible with the 2DI42561-010 module.
