Overview
Configured for digital output signal termination and field-side solid-state switching in Honeywell UCN-based control systems, the Honeywell MC-TDOD13 51304650-150 (MC-TDOD13 Digital Output Field Termination Assembly) provides direct electrical connection between compatible IOP hardware and field circuits. The assembly supports 16 optically isolated solid-state output channels, operates with 3 to 30 VDC loads, and uses compression terminals with a 2.5 A fuse rating.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | MC-TDOD13 |
| Part Number | 51304650-150 |
| Brand | Honeywell |
| Device Type | Digital Output Field Termination Assembly |
| Output Function | Digital output field termination |
| Number of Channels | 16 |
| Channel Isolation | Optical isolation |
| Output Type | Solid-State |
| Load Voltage Range | 3 to 30 VDC |
| Terminal Type | Compression terminals |
| Fuse Rating | 2.5 A |
| Compatible IOPs | MU/MC-PDOX01 and MU/MC-PDOX02 |
| Environmental Protection | Conformal coated |
| Redundancy | Not supported |
| CE Compliance | Non-CE compliant version |
| Physical Size | Size B |
| Dimensions | Approximately 12 inches / 307 mm length |
Channel Isolation and DCS Field Interface
The MC-TDOD13 uses optical isolation between control-side circuitry and field-side digital output circuits. This arrangement reduces the direct electrical coupling of field-side disturbances into associated control electronics. In addition, the 16-channel configuration supports multiple discrete output circuits through a single field termination assembly.
Unlike analog process interfaces using a 4-20 mA HART loop protocol, this assembly performs discrete solid-state output switching. Therefore, installation should maintain clear separation between output wiring, sensitive analog circuits, and communication wiring where applicable. The conformal coating provides additional protection for the internal circuitry against moisture, dust, and corrosive atmospheric contaminants.
Frequently Asked Questions (FAQ)
Q: Which IOP modules are compatible with the Honeywell MC-TDOD13 51304650-150?
A: The provided specification identifies compatibility with Honeywell MU/MC-PDOX01 and MU/MC-PDOX02 Input/Output Processors.
Q: Does the MC-TDOD13 support redundant operation?
A: No. The provided product data specifies that redundancy is not supported for this field termination assembly.
Q: What field output load voltage does the MC-TDOD13 support?
A: The specified load voltage range is 3 to 30 VDC. Field circuits should remain within the documented electrical limits of the associated output system.
Field Installation Guidelines
Mount the Size B assembly in the designated Honeywell system enclosure or approved installation location. Confirm that the associated MU/MC-PDOX01 or MU/MC-PDOX02 IOP is compatible before connecting field wiring.
Terminate conductors using the specified compression terminals and verify mechanical tightness according to the applicable terminal and system documentation. Route digital output conductors separately from sensitive analog signal wiring where practical.
Where shielded field cables are required by the system design, terminate cable shields according to the site’s grounding architecture and avoid unintended multiple shield-ground paths. Inspect field wiring for shorts, incorrect polarity, and insulation damage before energizing the output circuits.
Do not apply field loads exceeding the specified 3 to 30 VDC range. Verify the 2.5 A fuse arrangement and associated circuit protection before system commissioning. The assembly does not provide a redundant configuration, so maintenance and replacement procedures should follow the applicable system shutdown and isolation requirements.
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