FS-16DI-RL Honeywell Safety Manager Datasheet & Technical Manual

Honeywell FS-16DI-RL Safety Manager 16-Channel Relay Isolated DI Module

Honeywell FS-16DI-RL Safety Manager 16-Channel Relay Isolated DI Module

Availability: 20 left in stock

Honeywell FS-16DI-RL Safety Digital Input Module The Honeywell FS-16DI-RL, also cataloged as the FS-16DI-RL Digital Input Module (Relay Isolated), operates...

SKU: FS-16DI-RL

Manufacturer: Honeywell
Product No.: FS-16DI-RL
Product Type: Digital Input Modules
Product Origin: USA
Payment:T/T, Western Union
Weight: 450g
Shipping port: Xiamen
Warranty: 12 months

Description Reviews

Honeywell FS-16DI-RL Safety Digital Input Module

The Honeywell FS-16DI-RL, also cataloged as the FS-16DI-RL Digital Input Module (Relay Isolated), operates as a dedicated hardware component for 16-channel discrete signal sensing within Honeywell Experion PKS and Safety Manager platforms. It interfaces directly with volt-free dry contacts and active 24 VDC voltage inputs operating across 18 VDC to 30 VDC logic thresholds. Individual channel relay isolation breaks physical electrical connections between field devices and central system backplanes, preventing electrical noise and high-energy transients from reaching core processors.

Hardware Specifications

Parameter	Specification
Model	FS-16DI-RL
Brand	Honeywell
Origin	USA
Weight	0.35–0.45 kg (0.5–0.7 kg shipping assembly)
Dimensions	Compact cabinet installation profile
Operating Temp	-20 deg C to +60 deg C (-4 deg F to +140 deg F)
Power Consumption	0.5–0.7 A @ 24 VDC nominal
Channel Density	16 discrete input channels
Input Current	7 mA per channel
Input Signal Types	Dry contact, Voltage inputs (18–30 VDC)
Isolation Type	Relay isolation between channels and backplane
Diagnostics	Open-contact detection, short-circuit detection, fault LEDs
Mounting Format	DIN rail or rack-mounted
Certifications	CE, UL, CSA compliant

Channel-to-Channel Isolation and HART Loop Connectivity

Each input circuit incorporates individual relay isolation barriers to establish true galvanic isolation between field terminal points and internal backplane logic. This physical air-gap mechanism prevents ground loops, common-mode noise, and voltage surges from propagating across adjacent channels. Although designed primarily for discrete ON/OFF state processing, the high noise rejection and stable voltage rail characteristics prevent electromagnetic interference when routed adjacent to 4-20 mA HART loop protocol wiring and analog I/O carrier buses.

Frequently Asked Questions

Q: What diagnostic capabilities are supported by the FS-16DI-RL module?

A: The module performs hardware diagnostic checks, including open-contact detection, short-circuit detection, and visual loop status indication via front-panel fault LEDs to prevent undetected failures in safety loops.

Q: Does the FS-16DI-RL support direct connection of volt-free field switches?

A: Yes. The module accommodates dry contact inputs by supplying internal wetting current (~7 mA per channel) to determine open and closed contact states without requiring external power injection.

Q: Can the FS-16DI-RL be hot-swapped during active system operation?

A: Yes. In redundant Safety Manager configurations, a faulty module can be removed and replaced without disconnecting field wiring or interrupting power to adjacent operating modules.

Field Installation Guidelines

Mount the unit securely onto standard DIN rail or rack frames within control enclosures. Route field signal wiring through dedicated wire trunks, keeping 24 VDC signal lines physically separated from high-voltage AC power lines to avoid inductive noise coupling. Connect field cable shielding directly to the cabinet functional earth bus bar using low-impedance grounding straps. Verify that cabinet ventilation maintains ambient operating temperatures between -20 deg C and +60 deg C.

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