Discrete Input Monitoring Solution — Allen-Bradley 1734-IB8 | POINT I/O Series
Where This Product Is Used
The Allen-Bradley 1734-IB8 is a high-density 8-point 24V DC sourcing digital input module engineered for distributed I/O architectures in demanding industrial environments. It is widely deployed across the following application sectors:
- Automotive Assembly Lines — Monitoring proximity sensors, limit switches, and part-present detectors on robotic welding and stamping cells.
- Food & Beverage Processing — Capturing discrete signals from conveyor position sensors, fill-level switches, and door interlocks in hygienic production zones.
- Pharmaceutical Manufacturing — Reading binary status signals from isolators, safety gates, and batch-process interlocks under FDA 21 CFR Part 11 environments.
- Water & Wastewater Treatment — Interfacing with float switches, pump-run feedback contacts, and valve-position indicators across distributed pump stations.
- Oil & Gas Upstream/Midstream — Acquiring field device status signals in remote terminal unit (RTU) panels and wellhead control packages.
- Material Handling & Logistics — Detecting pallet presence, conveyor jam conditions, and diverter positions in high-throughput sortation systems.
- Machine Tool & CNC — Reading door-open, tool-change-complete, and spindle-at-speed discrete signals within compact machine control panels.
Technical Specifications
| Parameter | Value |
|---|---|
| Catalog Number | 1734-IB8 |
| Series | POINT I/O |
| Manufacturer | Allen-Bradley / Rockwell Automation |
| Number of Input Points | 8 |
| Input Voltage Range | 10–28.8V DC (nom. 24V DC) |
| Input Type | Sourcing (IEC Type 1 / Type 3) |
| Input Current (per point) | 5.0 mA @ 24V DC |
| ON-State Voltage Threshold | ≥ 10V DC |
| OFF-State Voltage Threshold | ≤ 5V DC |
| Input Filter Time (configurable) | 0.2 ms – 2.0 ms |
| Backplane Current Draw (5V) | 75 mA |
| Backplane Current Draw (24V) | 0 mA (field-powered) |
| Field Power Consumption | 120 mA max @ 24V DC |
| Operating Temperature | 0 °C to +55 °C |
| Storage Temperature | -40 °C to +85 °C |
| Relative Humidity | 5–95% non-condensing |
| Vibration (operating) | 2g @ 10–500 Hz |
| Shock | 30g operational |
| Enclosure Rating | Open-style (IP20 equivalent) |
| Module Width | 12 mm (single-slot POINT I/O) |
| Weight | Approx. 40 g |
| Wiring Style | Removable terminal block (RTB) |
| Indicators | 8 × green LED (per-point I/O status) |
Why Engineers Specify This Model
- Ultra-compact 12 mm footprint — The single-slot POINT I/O form factor delivers 8 discrete inputs in the smallest available DIN-rail footprint, maximising panel density without sacrificing channel count.
- Hot-swap capability — Modules can be inserted and removed under power without disrupting adjacent I/O nodes, enabling zero-downtime maintenance in 24/7 production environments.
- Configurable input filtering — Adjustable filter times (0.2–2.0 ms) allow engineers to suppress contact bounce from mechanical switches while maintaining fast response for solid-state sensors.
- Removable terminal block (RTB) — Field wiring remains in place when the module is replaced, eliminating re-wiring errors and reducing MTTR.
- Per-point LED diagnostics — Eight individual green LEDs provide instant visual confirmation of input state, accelerating fault isolation during commissioning and troubleshooting.
- Seamless ControlLogix / CompactLogix integration — Native EtherNet/IP and DeviceNet adapter compatibility ensures plug-and-play operation within Rockwell Automation control architectures.
- IEC Type 1 & Type 3 compliance — Broad sensor compatibility covering both legacy and modern 24V DC field devices without additional signal conditioning.
Complete System Bill of Materials
A fully operational POINT I/O discrete input node typically requires the following components:
| Item | Catalog No. | Description |
|---|---|---|
| I/O Module | 1734-IB8 | 8-Point 24V DC Sourcing Digital Input Module (this item) |
| Adapter — EtherNet/IP | 1734-AENT / 1734-AENTR | POINT I/O EtherNet/IP Adapter (standard / redundant media) |
| Adapter — DeviceNet | 1734-ADN | POINT I/O DeviceNet Adapter |
| Power Supply | 1734-EP24DC | POINT I/O 24V DC Field Power Supply |
| End Cap | 1734-TOPS / 1734-TOP | POINT I/O End Cap (with / without power bus) |
| Removable Terminal Block | 1734-RTB / 1734-RTBS | Standard / Spring-clamp RTB for 1734-IB8 |
| DIN Rail | 199-DR1 (or equiv.) | 35 mm DIN rail, steel, per IEC 60715 |
| 24V DC Power Supply | 1606-XLP95E (or equiv.) | Panel-mount SMPS for field power |
Compliance & Industry Standards
- UL Listed — UL 508 (Industrial Control Equipment)
- CE Marked — EMC Directive 2014/30/EU; Low Voltage Directive 2014/35/EU
- RoHS Compliant — Directive 2011/65/EU (restriction of hazardous substances)
- IEC 61131-2 — Programmable Controllers: Equipment Requirements & Tests
- IEC 61010-2-201 — Safety requirements for control equipment
- ATEX / IECEx — Consult Rockwell Automation for zone-rated variants
- cULus — Canadian and US market certification
Quality Assurance & Sourcing
Konmask.com specialises in the procurement and supply of genuine Allen-Bradley / Rockwell Automation automation components for industrial OEMs, system integrators, and MRO operations globally.
- Authenticity — All 1734-IB8 units are sourced from authorised distribution channels or verified surplus inventories. Each module is inspected against Rockwell Automation’s published hardware revision markings and label specifications prior to dispatch.
- Condition grading — New-in-box (NIB), factory-sealed, and tested-surplus grades are available. Condition is explicitly stated on every order confirmation.
- Traceability — Lot documentation, date codes, and country-of-origin records are retained and available upon request for regulated industries.
- Packaging — Modules are shipped in anti-static ESD bags with foam-lined cartons to prevent transit damage to the backplane connector and terminal block.
- Warranty — 12-month operational warranty against manufacturing defects on all new units; 90-day warranty on tested-surplus stock.
How to Source This Part
- Add to cart — Select your required quantity and click Add to Cart. Volume pricing is available for orders of 5+ units.
- Request a quote — For project quantities (>10 units), blanket orders, or urgent expedite requirements, email support@konmask.com with your project timeline and delivery location.
- Lead time — In-stock units ship within 1–2 business days. Ex-stock orders for non-stocked configurations are quoted with a confirmed lead time before payment is processed.
- Export compliance — Cross-border orders are processed in accordance with applicable export control regulations (EAR/ECCN). End-user declarations may be required for certain destinations.
- Payment — T/T bank transfer, PayPal, and major credit cards accepted. Net-30 terms available for approved corporate accounts.
Application-Specific FAQ
Q: Can the 1734-IB8 read signals from NPN (sinking) sensors?
A: No. The 1734-IB8 is a sourcing (PNP) input module. For NPN/sinking sensor compatibility, specify the 1734-IB8S (sinking variant) or use an interposing relay.
Q: How many 1734-IB8 modules can be mounted on a single POINT I/O adapter?
A: Up to 63 I/O modules per adapter node, subject to backplane current budget. The 1734-IB8 draws 75 mA from the 5V backplane bus; verify total current against the adapter’s rated capacity.
Q: Is the 1734-IB8 compatible with Safety PLCs (GuardLogix)?
A: The standard 1734-IB8 is a non-safety module. For SIL 2 / PLd safety input applications, specify the 1734-IB8S (POINT Guard I/O safety variant).
Q: What is the maximum cable length from field device to module terminal?
A: Rockwell Automation recommends a maximum of 30 m (100 ft) for unshielded cable in standard industrial environments. Shielded cable is recommended in high-noise installations.
Q: Can I replace the 1734-IB8 without powering down the entire rack?
A: Yes. POINT I/O supports hot-swap module replacement. Remove the RTB, extract the module, insert the replacement, and reconnect the RTB. The adapter will automatically re-establish communication.
Q: What firmware or RSLogix 5000 / Studio 5000 version is required?
A: The 1734-IB8 is supported from RSLogix 5000 v13.0 onwards. No firmware resides on the module itself; configuration is managed via the adapter’s EDS file in Studio 5000 Logix Designer.
© 2026 Konmask.com. All rights reserved.
Original Source: https://Konmask.com
Contact: support@konmask.com | +0086 19859288691
