Discrete I/O Control Solution — MODICON AS-B805-016 | 800 Series
Where This Product Is Used
The MODICON AS-B805-016 is a 16-point discrete input module designed for the Modicon 800 Series PLC platform. It is widely deployed across demanding industrial environments where reliable digital signal acquisition is critical:
- Manufacturing & Assembly Lines — Reads limit switches, proximity sensors, and pushbutton states on conveyor and assembly systems.
- Process Control Plants — Monitors valve position feedback, flow switches, and level switches in chemical, oil & gas, and water treatment facilities.
- Machine Tool & CNC Automation — Captures tool-change confirmations, door interlock signals, and spindle status inputs.
- Packaging & Material Handling — Interfaces with photoelectric sensors and encoder pulse inputs on high-speed packaging lines.
- Building Automation & HVAC — Integrates with damper end-switches, fan status contacts, and fire/smoke detector dry contacts.
- Power Generation & Utilities — Acquires breaker status, relay contact states, and protective relay trip signals in substation control panels.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | AS-B805-016 |
| Manufacturer | MODICON (Schneider Electric) |
| Series | Modicon 800 / Modicon 84 |
| Module Type | Discrete Input Module |
| Number of Input Points | 16 |
| Input Voltage Range | 24 V DC (nominal) |
| Input Logic | Positive / Sink logic |
| Isolation | Optically isolated inputs |
| Backplane Interface | Modicon 800 Series I/O bus |
| Operating Temperature | 0 °C to +60 °C |
| Storage Temperature | -40 °C to +85 °C |
| Relative Humidity | 5% to 95% non-condensing |
| Weight | Approx. 1,000 g (module + housing) |
| Mounting | Modicon 800 Series I/O rack |
Note: Verify all specifications against the official Modicon 800 Series hardware reference manual before system design. Specifications subject to revision by manufacturer.
Why Engineers Specify This Model
- Proven Platform Longevity — The Modicon 800 Series has decades of installed base in heavy industry; AS-B805-016 modules are still actively maintained and sourced for legacy system expansions and replacements.
- Optical Isolation — Each input channel is optically isolated, protecting the PLC backplane from field-side voltage transients and ground loops common in industrial environments.
- High Channel Density — 16 discrete inputs in a single slot minimizes rack space consumption and reduces wiring complexity compared to lower-density alternatives.
- Direct Sensor Compatibility — Accepts standard 24 V DC NPN/PNP sensor outputs without additional signal conditioning hardware.
- Simplified Diagnostics — LED status indicators per channel enable rapid field troubleshooting without a programming terminal.
- Drop-in Replacement — Fully backward-compatible with existing Modicon 800 Series racks, enabling zero-configuration hot-swap in qualified maintenance scenarios.
Complete System Bill of Materials
For a complete Modicon 800 Series discrete input subsystem, the following components are typically required alongside the AS-B805-016:
- Modicon 800 Series I/O Rack (e.g., AS-B801-016 or compatible chassis)
- Modicon CPU Module (e.g., AS-884A or equivalent 800 Series processor)
- 24 V DC Power Supply Module (rack-mounted, DIN-rail, or panel-mount)
- Field Wiring Terminal Block / I/O Connector (16-point, compatible pitch)
- Shielded Instrumentation Cable (for sensor field wiring runs >10 m)
- DIN Rail or Panel Mounting Hardware
- Surge Protection Devices (SPDs) for field-side wiring in exposed installations
Contact Konmask for bundle pricing on multi-module orders or complete rack assemblies.
Compliance & Industry Standards
- CE Marking — Compliant with applicable EU Low Voltage and EMC Directives (verify current declaration with Schneider Electric).
- UL Listed — Suitable for use in UL-listed control panel assemblies (confirm UL file number for current production).
- IEC 61131-2 — Discrete input electrical characteristics conform to IEC 61131-2 Type 1/Type 3 input specifications.
- RoHS — Manufactured in compliance with RoHS Directive 2011/65/EU restrictions on hazardous substances.
- ATEX / IECEx — Standard module is not rated for hazardous area use; consult Schneider Electric for Ex-rated alternatives if required.
Quality Assurance & Sourcing
Konmask.com sources the MODICON AS-B805-016 through established industrial distribution channels with full traceability. Our quality process includes:
- Visual & Dimensional Inspection — Each unit inspected for label integrity, connector condition, and housing damage prior to dispatch.
- Authenticity Verification — Part markings, date codes, and packaging cross-checked against manufacturer references to screen for non-genuine product.
- Functional Pre-check — Where test fixtures are available, modules are powered and input channel LED response verified before shipment.
- Documented Chain of Custody — Sourcing records retained for traceability; available to customers upon request for regulated industries.
- Warranty — 90-day replacement warranty against defects in materials and workmanship. Contact support@konmask.com for claims.
How to Source This Part
- Add to Cart — Click the purchase button above to place an order directly. Stock is updated in real time.
- Request a Quote — For orders of 3+ units or project-based procurement, email support@konmask.com with your required quantity and delivery timeline.
- Expedited Sourcing — If the item shows as out of stock, contact us via WhatsApp or email. We maintain supplier relationships for priority sourcing of legacy Modicon parts.
- Export & Cross-border Orders — We ship internationally. Provide your destination country at checkout for accurate freight and duty estimates.
- Technical Pre-sales Support — Unsure if this module fits your rack configuration? Send your existing BOM or rack layout to our engineering team for compatibility confirmation before purchase.
Application-Specific FAQ
Q: Is the AS-B805-016 compatible with the Modicon 984 series PLC?
A: The AS-B805-016 is designed for the Modicon 800 Series I/O bus. Compatibility with Modicon 984 racks depends on the specific rack and adapter configuration. Contact us with your rack model for a definitive answer.
Q: Can this module accept 120 V AC field inputs?
A: No. The AS-B805-016 is rated for 24 V DC discrete inputs. For 120 V AC input applications, a different module (e.g., AS-B805-016 AC variant or equivalent) is required.
Q: What is the maximum cable length for field wiring to this module?
A: Modicon guidelines recommend keeping field wiring under 300 m for standard 24 V DC discrete inputs. For longer runs, use shielded cable and consult the hardware reference manual for derating guidelines.
Q: Do you offer programming or configuration support for this module?
A: Konmask specializes in hardware supply. For PLC programming services, we can refer you to qualified Modicon system integrators in your region.
Q: Is this a new or refurbished unit?
A: Units are sourced as new-old-stock (NOS) or factory-refurbished depending on availability. The condition is clearly stated on the product listing and confirmed in the order confirmation. Contact us if you require new-production units only.
Q: Can I return the module if it is not compatible with my system?
A: We accept returns within 14 days of receipt for unused, uninstalled modules in original packaging. See our Returns Policy or contact support@konmask.com for details.
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