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SIO4022 Honeywell Sylk I/O ModuleSIO4022 Honeywell Sylk I/O ModuleSIO4022 Honeywell Sylk I/O Module
SIO4022 Honeywell Sylk I/O Module
SIO4022 Honeywell Sylk I/O Module
SIO4022 Honeywell Sylk I/O Module

SIO4022 Honeywell Sylk I/O Module


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PRODUCT SKU : SIO4022

PRODUCT TYPE : I/O Expansion Modules

PRODUCT VENDOR : Honeywell


  • 100% Genuine Parts – Risk-Free 30-Day Returns
  • 1-Year Warranty & Expert Support for Every Order

Product Details

Configured for auxiliary I/O expansion and remote sensor channel processing in Honeywell Spyder systems, the Honeywell SIO4022 (SIO4022 Sylk I/O Module) provides direct physical/electrical execution.

Hardware Specifications

Parameter Specification
Model SIO4022
Brand Honeywell
Origin USA / As specified on hardware label
Weight 0.79 lbs (0.36 kg)
Dimensions Standard Sylk module housing footprint
Operating Temp -40 to 65 deg C
Power Consumption Powered directly via 2-wire S-Bus (Sylk bus) interface
Module Family Sylk Series
System Integration Honeywell Spyder Controllers via S-Bus
Input Capacity 4 Universal / Digital Inputs
Output Capacity 2 Outputs
Wiring Interface Screw terminal connections

4-20 mA HART Loop Protocol and Channel-to-Channel Isolation

The SIO4022 routes discrete and analog telemetry back to a master Spyder controller across a two-wire S-Bus connection. Onboard conditioning circuits deliver channel-to-channel isolation across its 4 input and 2 output terminals. This isolation mitigates ground potential shifts when digitizing remote field inputs, including 4-20 mA HART loop protocol transmitters and low-voltage thermistor channels, maintaining signal stability across distributed HVAC control loops.

Frequently Asked Questions

Q: How is communication and operating power delivered to the SIO4022 module?

A: The SIO4022 utilizes a two-wire S-Bus (Sylk bus) connection, receiving both operating power and serial data communication directly from the parent Spyder controller.

Q: What is the total input and output terminal count on the SIO4022?

A: The module provides 4 field input channels and 2 field output channels for localized point expansion.

Field Installation Guidelines

  • Mount the SIO4022 securely onto a standard DIN rail or panel backplate within a protected industrial control cabinet.
  • Connect the two-wire S-Bus polar/non-polar communication lines from the Spyder controller to the designated bus terminals.
  • Wire all field input and output leads to the terminal blocks, ensuring signal wiring is routed separately from high-voltage AC power lines.
  • Earth all cable shields to a single grounding point inside the enclosure to eliminate common-mode noise on analog channels.

Additional Information

  • 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
  • 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
  • 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
  • Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
  • Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
  • Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.




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