The Honeywell FC-SDOL-0424, also cataloged as the FC-SDOL-0424 Digital Output Module, operates as a dedicated hardware component for discrete signal switching within Experion PKS Series C systems. It provides four solid-state 24 VDC source outputs with short-circuit protection and defined load parameters.
Hardware Specifications
Model: FC-SDOL-0424
Brand: Honeywell
Origin: USA
Weight: 2 Kg
Dimensions: 4 TE, 3 HE (4 HP, 3U)
Operating Temp: 0 to 60 deg C typical
Power Consumption: 5 VDC 15 mA; 24 VDC internal 50 mA; 24 VDC external 15 mA (no load)
Output Channels: 4 solid-state source outputs
Output Voltage: 24 VDC
Channel Current: Max 1 A per channel
Total Module Load: 3.6 A (dissipation limit)
Load Inductance: Max 0.5 H
Load Capacitance: Max 1 uF
Voltage Drop: < 1.3 V at 1 A
Off Current: < 0.1 mA
4-20 mA HART Loop Protocol
The module integrates into Honeywell DCS architectures using4-20 mA HART loop protocol. Channel-to-channel isolation ensures fault containment, while external 24 VDC supply separation maintains independent field power. Although cold junction compensation (CJC) is not applicable to digital outputs, Honeywell’s unified I/O design maintains consistent signal integrity across mixed module types.
Frequently Asked Questions
Q: Does the FC-SDOL-0424 support hot-swap replacement?
A: Yes, the module can be inserted or removed under power, provided output loads are de-energized during replacement.
Q: What is the backplane current draw impact?
A: The module consumes 15 mA at 5 VDC from the backplane, which must be included in rack load calculations.
Q: How does overload detection function?
A: Overload detection triggers when load resistance falls below 10 ohms, initiating protective shutdown of the affected channel.
