ABB DO880 3BSE028602R1 S800 Digital Output Module

The ABB DO880 3BSE028602R1, also cataloged as the DO880 S800 Digital Output Module, provides 16 current-sourcing output channels for 24 VDC field loads. Each channel supports a rated output current of 0.5 A with current limiting and short-circuit protection. The module supports redundant and high-integrity configurations and provides per-channel status indication and process-power supervision.

Hardware Specifications

Current Limiting and Channel Diagnostics

The DO880 uses current-sourcing outputs with per-channel current limiting and short-circuit protection. Its output circuits provide group-wise isolation from ground. The module monitors process power for each channel and supports configurable loop supervision based on loop resistance and operating mode.

Front-panel indicators include F (Fault), R (Run), W (Warning), and individual status/error indicators for channels 1 through 16. Internal diagnostic indications cover module errors, module warnings, and internal channel errors.

The module supports redundant and high-integrity configurations. The supplied specifications do not identify a specific redundancy switching time or a safety integrity level, so these values must be verified against the applicable ABB system documentation.

Frequently Asked Questions (FAQ)

Q: What is the maximum output current per channel?

A: Each output channel is rated for 0.5 A at a nominal 24 VDC supply, within the specified 19.2-32 VDC range. The outputs include current limiting and short-circuit protection.

Q: Which mounting termination units are compatible with the DO880?

A: The listed compatible MTUs are TU810, TU812, TU814, TU830, TU833, TU842, TU843, and TU852. Confirm the system configuration and keying code FE before installation.

Q: Does the DO880 support intrinsic safety or HART communication?

A: No. The supplied specifications list intrinsic safety and HART as unsupported. The module is a digital output device rather than a HART-enabled analog interface or intrinsic-safety barrier.

Field Installation Guidelines

• Verify that the installed S800 I/O configuration supports the DO880 and the selected MTU.
• Confirm the FE keying code and terminal assignments before connecting field wiring.
• Check the external 24 VDC supply against the specified 19.2-32 VDC operating range.
• Verify the load current of each output channel does not exceed 0.5 A.
• Route field signal wiring separately from high-voltage power conductors where practical to reduce electromagnetic interference.
• Terminate cable shields according to the site grounding plan and ABB installation documentation.
• Confirm field cable length does not exceed 600 m and check loop resistance when loop supervision is enabled.
• Verify the enclosure and mounting arrangement meet the IP20 protection requirements and applicable environmental approvals.
• For vertical mounting in a compact MTU, observe the specified maximum ambient temperature of 40 deg C.
• Check the front-panel fault, warning, run, and channel indicators during commissioning. Resolve diagnostic faults before placing the associated outputs into service.