Honeywell TC-ODJ161 Digital Output Module

Technical Specifications Overview

The table below details the core technical parameters of this digital output module.

Parameter	Specification
Model Number	TC-ODJ161
Product Type	Digital Output Module
Compatible System	Honeywell Experion PKS / PlantScape Series
Number of Outputs	16 points (isolated relay outputs)
Output Type	Relay (Form A, 1a normally open contact)
Contact Rating (Resistive)	2 A at 250 VAC / 30 VDC per point
Contact Rating (Inductive)	0.5 A at 250 VAC / 0.5 A at 30 VDC (cosφ = 0.4)
Minimum Switching Load	5 VDC, 10 mA
Mechanical Life	20,000,000 operations (minimum)
Electrical Life	100,000 operations (minimum at rated load)
Response Time (ON/OFF)	10 ms (typical)
Internal Power Draw	5 VDC, 200 mA
External Power Supply	24 VDC (for relay coil drive)
Dimensions (W x H x D)	45 mm x 130 mm x 120 mm
Weight	0.30 kg
Terminal Type	34-point removable screw terminal block
Indicators	16 green LEDs (one per output channel)
Isolation Voltage	2500 VAC (between field and logic)
Operating Temperature	0°C to +60°C

Robust Relay Output Performance for Process Control

The TC-ODJ161 digital output module provides 16 isolated relay outputs for direct load switching in process control applications. This digital output module features Form A normally open contacts, which support both AC and DC load voltages. The module handles resistive loads up to 2 A per point, making it ideal for driving contactors, solenoid valves, indicator lamps, and alarm horns in refinery and chemical plant environments.

The relay contacts offer 2500 VAC isolation between the control logic and field circuits. Therefore, this digital output module effectively protects the main processor from voltage surges and short-circuit faults common in industrial settings. The 10 ms typical response time ensures reliable performance for most sequencing, interlocking, and batch control applications. The mechanical life of 20 million operations and electrical life of 100,000 operations guarantee long-term durability in high-cycle environments.

Comprehensive Diagnostics and Status Indication

This digital output module includes built-in diagnostic features that continuously monitor output health and load conditions. The TC-ODJ161 detects open-circuit conditions and short-circuit faults, reporting these statuses to the controller for appropriate action. Sixteen green LEDs on the front panel illuminate individually to show the ON/OFF status of each channel, enabling rapid visual verification.

The module supports hot-swap capability, allowing replacement without powering down the system. This feature significantly reduces downtime during maintenance activities in continuous process operations.

Physical Design and Installation Features

This digital output module mounts directly onto the Experion PKS or PlantScape backplane, occupying a single slot. The module measures 45 mm in width, 130 mm in height, and 120 mm in depth, with a weight of 0.30 kg. A 34-point removable screw terminal block on the front panel accepts all field wiring connections, simplifying both installation and ongoing maintenance.

The screw terminals accept wires up to 2.5 mm² (AWG 14), ensuring secure and reliable connections for high-current loads. The module requires an external 24 VDC supply for relay coil energization, drawing only 200 mA from the 5 VDC backplane.

Power and Environmental Specifications

The TC-ODJ161 operates reliably across a temperature range of 0°C to +60°C. This digital output module also withstands humidity from 5% to 95% (non-condensing) and resists vibration up to 2G at 10-150 Hz, making it suitable for demanding industrial environments.