Honeywell 8C-TDOD51
Honeywell 8C-TDOD51
Honeywell 8C-TDOD51
Honeywell 8C-TDOD51
Honeywell 8C-TDOD51
Honeywell 8C-TDOD51
Ask our team:
  • Phone: +86 181 0690 9650
  • E-Mail sales1@apterpower.com

8C-TDOD51

/ 4.9
1001 reviews | Need a Specific Revision?
The 8C-TDOD51 is a Honeywell PlantCruise by Experion Series 8 I/O Digital Output module with 32 channels, bussed 24V DC output, galvanic isolation, and FAILOPT safe-state behavior.
Get a quick price for 8C-TDOD51
Quantity
*E-mail
Company
*Mobile
*Content
Upload (gif, jpg, jpeg, png, bmp, doc, docx, xls, xlsx, ppt, pdf, csv)

Technical specifications for 8C-TDOD51

  • Manufacturer:
    Honeywell
  • Part Number:
    8C-TDOD51
  • Product Family:
    Honeywell Experion PKS ( C200, C300 )
  • Product Type:
    Digital Output module
  • Number of Channels:
    32
  • Output Type:
    Bussed 24V DC (common return)
  • Coating:
    Coated (for harsh environments)
  • Redundancy:
    Non‑redundant (use 8C-TDOD61 for redundant)
  • Compatible System:
    PlantCruise by Experion Series 8 I/O
  • Weight:
    0.26 kg
  • Estimated shipping dimensions:
    22x12x5.5cm
  • Tariff Code:
    8517795000
  • Country of origin:
    USA
  • Place of shipment:
    Xiamen, Fujian, China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals Specifications Application Operating Environment Control Functions

Features:

  • 24V DC bussed outputs; supports latched, pulsed, and PWM modes; 9‑inch IOTA form factor.
  • Per‑channel configurable: Hold Last Value or Shed to Safe Value; prevents dangerous output states during communication or system faults.
  • When using external 24V supply, outputs are isolated from Series 8 power system; eliminates ground loops and protects controller electronics.
The 8C-TDOD51 packs 32 digital output channels into a compact 9‑inch IOTA form factor. This high density is a significant advantage for PlantCruise by Experion systems where rack space is limited. Each output provides 24V DC bussed power – all outputs share a common return, simplifying field wiring. The module supports three output modes: latched (standard on/off), pulsed (time‑limited activation), and pulse‑width modulated (PWM) for proportional control of devices like solenoid valves or heating elements. The bussed design means that a single field power source feeds all 32 outputs, reducing the number of field power wires compared to isolated output modules.

The 8C-TDOD51 addresses a critical safety concern: what happens to outputs when the controller loses communication or detects a system fault? Without proper handling, outputs might freeze in their last state, potentially causing dangerous conditions. The module implements FAILOPT (fail‑safe option) on a per‑channel basis. For each of the 32 outputs, the engineer can configure the safe‑state behavior as either HOLD LAST VALUE or SHED TO SAFE VALUE. Hold Last Value keeps the output at its most recent commanded state until communication is restored. Shed to Safe Value forces the output to a predetermined safe value (user‑configurable, e.g., "off" for a valve or "on" for a safety brake). This feature is essential for safety‑related applications such as emergency shutdown systems, burner management, or chemical dosing.

The 8C-TDOD51 offers flexible field power options that directly impact system reliability and noise immunity. The bussed outputs can be powered either from the Series 8 system power supply or from an external 24V DC source. The choice is made via a wiring option on the IOTA. When an external field power supply is used, the module provides galvanic isolation between the field outputs and the Series 8 power system. This isolation is critical in industrial environments where field wiring runs long distances, shares conduits with high‑power cables, or connects to devices on different ground potentials. Without isolation, ground loops can inject noise into the controller, causing erratic behavior or damage.

The 8C-TDOD51 Honeywell Digital Output module may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL)by the manufacturer (OEM).

Honeywell 8C-TDOD51 Digital Output module Manuals, Datasheets,Drivers,Link Important Notice:Other accessories,manuals,cables,calibration data,software,etc.are not included with this equipment unless listed in the above stock item description.All prices are shown in USD.
Honeywell 8C-TDOD51 Digital Output module Specs

General

  • Manufacturer Honeywell
  • Model 8C-TDOD51
  • Condition New Original ready stock
  • Product Family 8U-TDOD51,8C-TDOD61,8U-TDOD61
Important Notice:Other accessories,manuals,cables,calibration data,software,etc.are not included with this equipment unless listed in the above stock item description.All prices are shown in USD.
  • Industrial Automation: Used for the logical control of production lines, machine operation, and various automated equipment.
  • Building Automation: Integrated into intelligent building systems, responsible for the start-up and shutdown control of lighting switches, air conditioning, communication, and ventilation systems.
  • Energy Management and Environmental Protection: Applied to boiler room control, waste treatment plants, and industrial gas process control.
  • Field Equipment Drives: Directly controls field actuators such as solenoids, relays, indicator lights, and motor starters.
  • Environmental Protection: The prefix "8C" indicates the presence of a Conformal Coating, effectively protecting against moisture, dust, and corrosive chemical gases.
  • Humidity and Shock Resistance: Supports relative humidity from 5% to 95% (non-condensing) and is shock and vibration resistant.
  • Channel Specifications: Typically supports 8 channels (dry contact relay type) or expandable to 32 channels (source output type).
  • Diagnostic Feedback: Each channel is equipped with an LED status indicator to monitor the channel's ON status in real time, simplifying on-site troubleshooting.
  • Fail-safe Mode: Supports configuration of the FAILOPT parameter. When controller communication is interrupted, the output can be set to "Hold Last Value" or automatically switch to the default "Safe Value".
  • Software Integration: Configured via the Control Builder graphical tool, supporting multiple output modes (such as Latch, Pulse, PWM pulse width modulation).
  • Short Circuit and Overload Protection: Features electronic current limiting and short circuit protection; some versions also include fuse isolation to protect the system baseboard from on-site faults.
Description
The 8C-TDOD51 is a 32‑channel digital output module for Honeywell PlantCruise by Experion Series 8 I/O systems. It provides bussed 24V DC outputs for controlling solenoid valves, interposing relays, and other process equipment. The module supports per‑channel safe‑state behavior (FAILOPT) with configurable hold‑last‑value or shed‑to‑safe‑value options. 

When using the 8C-TDOD51, engineers benefit from extensive internal diagnostics to ensure data integrity. The module supports redundant configurations when paired with the appropriate IOTA (8C-TDOD61 for redundant). Outputs can be configured as latched, pulsed, or pulse‑width modulated. 

The 8C-TDOD51 has bussed outputs, meaning all 32 outputs share a common return (ground). Field power can be sourced from either the system power supply or an external 24V supply. When an external source is used, the outputs are galvanically isolated from the Series 8 power system. 

For legacy PlantCruise by Experion system expansions or repairs, the 8C-TDOD51 provides a reliable digital output solution. It is part of the Series 8 I/O family and is compatible with the PlantCruise by Experion engineering station. 
Alternative Names
8U-TDOD51 8C-TDOD61 8U-TDOD61
Technical notes
The 8C-TDOD51 is a bussed output module, meaning all 32 outputs share a common return (ground). This simplifies wiring but requires that all field devices share the same reference potential. Do not mix different power sources without proper isolation.
Exceptional Service

Our Mission

  • 100% Satisfaction

    We believe expertise is priceless. With over 20 years of experience, and top engineers on staff, we can help you solve or avoid problems that threaten your business.
  • Trust Guaranteed

    Not only do we have a vast inventory, our team makes sure every piece of equipment is in working condition. Your purchases are also backed by our Warranty.
  • Expertise

    Time is money, especially when your equipment is down. We work quickly to get your equipment on its way so you can get it back up and running.

FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
What happens to outputs on the 8C-TDOD51 if communication fails?
The 8C-TDOD51 supports per‑channel FAILOPT safe‑state behavior. Each output can be configured to either HOLD THE LAST VALUE or SHED TO A SAFE VALUE (user‑configurable). This prevents unintended actuator operation during system faults.
Does the 8C-TDOD51 provide isolation between field and system?
Yes. When field power is supplied from an external source (wiring option on the IOTA), the 8C-TDOD51 provides galvanic isolation between the field outputs and the Series 8 power system, eliminating ground loops and protecting the controller.
What output modes does the 8C-TDOD51 support?
The 8C-TDOD51 supports latched (standard on/off), pulsed (time‑limited), and pulse‑width modulated (PWM) outputs per channel. This flexibility allows direct control of solenoids, relays, and proportional valves without external pulse generators.
Can the 8C-TDOD51 be used in a redundant configuration?
No. The 8C-TDOD51 is a non‑redundant module using a 9‑inch IOTA. For redundant operation, use the 8C-TDOD61 model, which requires a 12‑inch IOTA and supports dual module configuration for high‑availability applications.

Product Browsing History