Overview
Configured for 24 VDC discrete output control in Honeywell safety I/O systems, the Honeywell FC-SDO-0824 SDO-0824 V1.3 (FC-SDO-0824 Safe Digital Output Module) provides eight output channels for controlled energization and de-energization of connected loads. The module also monitors group de-energization, output cross-talk, and suppression diode function.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | FC-SDO-0824 |
| Spare Model | SDO-0824 V1.3 |
| Brand | Honeywell |
| Product Type | Safe Digital Output Module |
| Origin | USA |
| Weight | 0.66 kg |
| Dimensions | Estimated shipping size: 3.5 x 22.5 x 17.5 cm |
| Approvals | CE, TUV, UL, CSA, FM |
| Space Requirements | 4 TE, 3 HE (4 HP, 3U) |
| Number of Output Channels | 8 |
| Output Voltage | 24 VDC |
| Maximum Current | 550 mA |
| Maximum Lamp Load | 120 mA (2.9 W) |
| Maximum Load Capacitance | 1 uF |
| Voltage Drop | Less than 2.0 VDC at 500 mA |
| Off Current | Less than 0.1 mA |
| WDG Input Current | 8 mA |
Output De-Energization and Channel Behavior
The FC-SDO-0824 controls eight 24 VDC digital output channels. Each output supports controlled de-energization of the connected load. The module also provides a secondary means for de-energizing the output group.
The output circuitry addresses cross-talk between channels and monitors the functioning of suppression diodes. These functions support controlled behavior when inductive or other connected loads change state.
The specified voltage drop remains below 2.0 VDC at a 500 mA output load. The specified off current is below 0.1 mA. For load selection, the maximum lamp load is 120 mA or 2.9 W, while the maximum load capacitance is 1 uF.
Frequently Asked Questions
Q: How many digital output channels does the FC-SDO-0824 provide?
A: The module provides 8 digital output channels, each specified for 24 VDC operation.
Q: What load limits apply to the output channels?
A: The specified maximum current is 550 mA. The maximum lamp load is 120 mA (2.9 W), and the maximum load capacitance is 1 uF.
Q: What electrical behavior is specified when an output is off?
A: The specified off current is less than 0.1 mA. The module also supports output and group de-energization functions.
Field Installation Guidelines
Install the FC-SDO-0824 in the specified system hardware position and maintain the required 4 TE, 3 HE (4 HP, 3U) space allocation.
Verify the 24 VDC field supply and output wiring before energizing the module. Match each field load with the stated maximum current, lamp-load, and capacitance limits.
Route output wiring separately from high-energy switching conductors where practical. Keep signal wiring secured and prevent unintended contact between adjacent output circuits.
For inductive loads, verify that the connected suppression components are correctly installed and compatible with the output circuit. Check the output and group de-energization paths during commissioning.
Use the manufacturer’s specified grounding and cabinet wiring practices. Do not infer operating temperature, module dimensions, or power consumption from the estimated shipping dimensions or other supplied values.

















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