DX561 1TNE968902R2301 ABB S500-eCo Digital Input/Output Module

The ABB DX561 1TNE968902R2301, also cataloged as the DX561 Digital Input/Output Modules, operates as a dedicated hardware component for discrete signal processing within ABB S500-eCo automation platforms. The unit processes 8 digital input channels with sink/source capability alongside 8 digital transistor outputs in a 1-wire configuration.

Hardware Specifications

Firmware Flash Compatibility and Deterministic I/O Processing

The DX561 module interfaces with the S500-eCo CPU carrier through high-density lateral bus connectors, maintaining strict firmware flash compatibility across the controller platform. Internal switching stages ensure deterministic I/O scan execution and high backplane bus communication velocity, transferring 16 discrete signal states per cycle without latency or buffer overflows.

Frequently Asked Questions

Q: Does the DX561 support hot-swapping on an active S500-eCo terminal bus?

A: No. System power and 24 VDC field supplies must be disconnected prior to mounting or dismounting the module to prevent backplane bus communication faults or transistor output damage.

Q: How are sinking and sourcing field input contacts configured on the 8 DI channels?

A: The digital input channels support both sinking (NPN) and sourcing (PNP) wiring layouts, configured by changing the common return reference potential on the module's front terminal block.

Field Installation Guidelines

1. Lock the DX561 module onto a standard 35 mm DIN rail adjacent to the S500-eCo CPU or expansion base.
2. Slide the module sideways until the lateral backplane bus connector fully seats into the adjacent rack connector.
3. Terminate 24 VDC field power supply, digital inputs, and 0.5 A transistor load wires according to the 1-wire pinout schematic.
4. Ensure the DIN rail maintains low-impedance bonding to the main cabinet grounding bar to provide adequate shielding against high-frequency electrical noise.