The Honeywell FC-SDI-1624M, also cataloged as the FC-SDI-1624M Digital Input Module, operates as a dedicated hardware component for safe signal acquisition of 24 VDC inputs across Honeywell Series C systems. It provides 16 channels with short-circuit detection and defined isolation behavior.
Hardware Specifications
Model: FC-SDI-1624M
Brand: Honeywell
Origin: USA
Weight: Approx. 2 Kg
Dimensions: Modular rack-mounted form factor
Operating Temp: 0 to 60 deg C typical
Power Consumption: 24 VDC nominal supply (internal/external paths)
Input Channels: 16 digital inputs
Nominal Input Voltage: 24 VDC
Isolation: Channel-to-system isolation
Approvals: CE, UL, CSA, FM
Channel-to-Channel Isolation
The FC-SDI-1624M employs channel-to-channel isolation to prevent fault propagation between inputs. Each channel is electrically separated, ensuring that short-circuit or overload conditions remain localized. This design supports high-integrity signal acquisition in Honeywell Experion PKS and Safety Manager systems, maintaining compliance with industrial safety standards.
Frequently Asked Questions
Q: Does the FC-SDI-1624M support hot-swap installation?
A: Yes, the module can be inserted or removed under power, provided input circuits are isolated during replacement.
Q: What is the backplane current draw impact?
A: The module consumes defined current from the 24 VDC backplane supply; this must be included in rack load calculations.
Q: How does overload detection function?
A: Overload detection is triggered when input resistance falls below defined thresholds, isolating the affected channel.
