8C-PDODA1 Honeywell 51454472-175 Digital Output Module
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Function
The 8C-PDODA1 Digital Output bussed 24VDC (DO24V) module switches reliable 24V digital output signals to control process equipment, solenoid valves, and interposing relays.
Notable Features
- Extensive internal diagnostics for data integrity
- Optional redundancy
- Safe-state (FAILOPT) behaviors
- Direct/Reverse output support
- Latched, pulsed, or pulse-width modulated output (per channel)
- Galvanic isolation
Bussed 24VDC DO
The Digital Output Bussed 24VDC supports both internal and external field power excitation. All outputs share a common return (ground). Outputs are powered from either the system supply or an externally connected 24V source, with galvanic isolation available for outputs from external sources.
Safe-state Behavior (FAILOPT)
The Series 8 DO module supports the FAILOPT parameter per channel, allowing outputs to either hold the last value or shed to a safe value defined by the user.
Detailed Specification – Digital Output 24VDC (8C-PDODA1)
| Parameter | Specification |
|---|---|
| Input / Output Module | 8C-PDODA1 Digital Output 24 VDC, Field Isolated, Bussed output, Coated |
| IOTA Modules |
8C-TDODA1 Non Redundant, Coated 9”; 8C-TDODB1 Redundant, Coated 12” |
| Output Channels | 32 |
| Output Type | Source |
| Voltage Rating | 24 VDC |
| Module current rating | 105 mA |
| Load Voltage | 30 VDC Maximum |
| Load Current | 100 mA per channel (Max) and 3.2A per module (Max) |
| Galvanic Isolation | 1000 VAC RMS or ±1500 VDC |
| On-State Voltage | 24 VDC (typ) (load current @ 0.1A max) |
| Off-State Leak Current | 5 µA (max) |
| Turn-On/Turn-Off Time | 10 ms (max) |
| Gap (0 current) of Output to Field on Switchover | None (0ms) (applies to Redundancy only) |
| Module Removal and Insertion Under Power | Supported |