Honeywell DC-TDOB01 51307186-275 Digital Output Module

Technical Overview

The Honeywell DC-TDOB01 (part number 51307186-275) is a digital output module engineered for the Experion PKS C300 controller platform and Series C I/O systems. This module delivers isolated DC output signals to field devices such as solenoids, relays, actuators, and indicators, ensuring precise on/off control for demanding process automation applications. The module features galvanically isolated output channels that effectively minimize cross-channel interference and protect the control system from electrical noise. Its compact IOTA (Integrated Output Termination Assembly) design integrates electronics and field terminations in a single assembly, simplifying installation and reducing cabinet space requirements.

Technical Specifications

Parameter	Specification
Manufacturer	Honeywell
Model Number	DC-TDOB01
Part Number	51307186-275
Product Type	Digital Output Module
System Compatibility	Experion PKS, C300 Controller, Series C I/O
Output Channels	16 to 32 (configurable by variant)
Output Type	Solid-state relay / Open collector sinking
Nominal Output Voltage	24 VDC
Output Voltage Range	10-30 VDC
Max Output Current per Channel	0.5 A
Total Module Current	8 A to 16 A maximum
Isolation Voltage	1500V AC (channel-to-system)
Response Time	<1 ms to 10 ms (depending on variant)
Power Consumption	5 W to 7 W typical
Communication Protocol	Modbus RTU
Operating Temperature	-20°C to +70°C
Storage Temperature	-40°C to +85°C
Humidity	5% to 95% RH (non-condensing)
Mounting	DIN rail, Series C IOTA baseplate
Protection Rating	IP20
Certifications	CE, UL, CSA, TUV
Country of Origin	USA

Key Features

Galvanic Channel Isolation – Each output channel provides 1500V AC isolation from the system bus, effectively protecting the control electronics from field-side electrical noise, ground loops, and voltage transients.

High-Density Output Architecture – The module offers 16 to 32 independent output channels in a single slot, maximizing cabinet space efficiency and reducing overall system costs.

Channel Health Diagnostics – The module continuously monitors each output channel for fault conditions, enabling proactive maintenance and rapid fault identification through built-in diagnostic functions.

Hot-Swap Capability – Users can replace the module without powering down the system, minimizing process interruption and reducing maintenance downtime in critical applications.

Flexible Output Configuration – The module supports jumper-selectable output configurations, accommodating both Form-A (normally open) and Form-B (normally closed) relay contacts for application-specific control requirements.

Applications

The Honeywell DC-TDOB01 51307186-275 excels in oil and gas refineries, chemical processing plants, power generation facilities, and pharmaceutical manufacturing environments. It provides reliable output control for solenoid valves, motor starters, contactors, alarm annunciators, and indicator lamps within Experion PKS-based distributed control systems.