1732E-8IOLM12R - 8-Ch IO-Link Master, Dual-Port EtherNet/IP | Allen-Bradley
MPN: 1732E-8IOLM12R ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1095 | $1,095.00 |
| 10 | $1045 | $10,450.00 |
| 50 | $998 | $49,900.00 |
| 100 | $950 | $95,000.00 |
1732E-8IOLM12R Overview
An IO-Link master is a type of industrial network gateway that bridges the IO-Link single-drop digital communication protocol with a higher-level fieldbus (in this case EtherNet/IP), allowing a controller to transparently access smart sensors and actuators below the IO-Link master. IO-Link sits below the fieldbus layer in the industrial network hierarchy (IO-Link -> fieldbus/EtherNet/IP -> controller), and the master serves as both a power provider (L+ for sensors, P24 for actuators) and a cyclic/process data router. The 1732E-8IOLM12R is part of Rockwell's on-machine distributed I/O portfolio for harsh-environment applications.
Key differentiating features include dual-port D-coded M12 EtherNet/IP connectors for daisy-chained linear topology without external switches, integrated I/O and diagnostics per channel, M12 I/O connectors (5-pin, DC Micro) for IO-Link or digital I/O, dedicated auxiliary power M12 connectors, and absence of CIP Sync (IEEE 1588) - the '8IOLM12R' suffix indicates 8-channel IO-Link master with M12 I/O, no CIP Sync. The ArmorBlock enclosure supports on-machine mounting close to sensors and actuators, reducing cabinet space and cable runs for automotive, material handling, and high-speed packaging lines.
On the protocol side, each channel implements the IO-Link v1.0/v1.1 physical layer with 24 V DC L+/P24 supply and COM (C/Q) data line; the module also supports fallback modes so a connected sensor can revert to standard digital I/O if IO-Link communication is lost. Integrated diagnostics include per-channel short-circuit, over-temperature, and lost-communication detection, surfaceable via EtherNet/IP and the AOP. With On-Machine mounting the unit saves cabinet footprint and shortens pneumatic and sensor cable runs - it typically lowers installation cost by 20-30% in high-density automotive cells.
Typical applications include automotive body-in-white weld cell I/O, material handling conveyor PLC drop points, high-speed packaging line sensor hubs, food and beverage washdown zones, and tire/rubber manufacturing. The module pairs naturally with Allen-Bradley 1732IL IO-Link hubs downstream and 1756/CompactLogix controllers upstream, and is commonly deployed alongside Stratix switches and POINT I/O for layered architectures.
When designing with this module, allocate one M12 EtherNet/IP port to the upstream ring/daisy-chain and the other to the downstream device; provide separate M12 auxiliary power feeds so field-side and logic-side power can be removed independently for hot-swap maintenance. Configure CIP SYNC explicitly as 'not supported' when adding the module to a Studio 5000 project - some revision-control templates flag this as an error if skipped.
Drop-in alternatives for 1732E-8IOLM12R — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
1732E-8IOLM12R-CIP
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
1732E-IB8M8SOER
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
1732E-OB8M8SR
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
1732E-8IOLM12R Specifications (manufacturer-published)
| Manufacturer | Allen-Bradley / Rockwell Automation |
| Bulletin / Series | 1732E ArmorBlock |
| Module Type | 8-Channel IO-Link Master with Dual-Port EtherNet/IP |
| Communication Protocol | EtherNet/IP (D-coded M12) + IO-Link |
| Number of Channels | 8 (individually configurable DI / DO / IO-Link / fallback / disabled) |
| I/O Connectors | 5-pin DC Micro (M12) - 8 ports |
| EtherNet/IP Connectors | Dual-port D-coded M12 |
| Auxiliary Power Connector | M12 |
| Nominal Supply Voltage | 24 V DC |
| Mounting | On-machine / field-mount (M12 cord-sets, no enclosure required) |
| Ingress Protection | IP67/IP69K (ArmorBlock housing) |
| CIP Sync Support | Not supported (no IEEE 1588 time sync) |
| Channel Configuration | DI / DO / IO-Link / fallback / disabled (per channel) |
| Integrated Diagnostics | Yes - per-channel diagnostics |
| Operating Temperature | -20C to +70C |
| Approvals | UL listed, CE, ATEX zone 2 (verify per Rockwell product page) |
| Configuration Tool | Studio 5000 / Logix Designer Add-On Profile (AOP v3.1.60) |
1732E-8IOLM12R Interfaces & Connectors
1732E-8IOLM12R exposes the following interfaces and connectors as published by the manufacturer: Ethernet, Power Input. Expansion header pinout, connector pin numbering, and electrical limits are defined in the manufacturer documentation.
| Ethernet | Dual-port D-coded M12 |
| Power Input | 24 V DC |
Refer to the manufacturer documentation for the full expansion header pinout and connector pin numbering.
Power & Thermal Characteristics
| Power Input | 24 V DC |
| Operating Temperature | -20C to +70C |
Power input and thermal parameters for 1732E-8IOLM12R as published by the manufacturer.
Typical Applications
1732E-8IOLM12R is suitable for 6 applications: Automotive Body-in-White Weld Cell IO, Material Handling Conveyor I/O Drop, High-Speed Packaging Line Sensor Hub, Food & Beverage Washdown Zone I/O, Tire & Rubber Manufacturing Floor I/O, Distributed I/O Station for PLC DDC.
Automotive Body-in-White Weld Cell IO
Provides on-machine IO-Link connectivity for weld-cell smart sensors. The 1732E-8IOLM12R's IP67/IP69K ArmorBlock housing withstands weld spatter, coolants, and high-pressure washdown typical of body-in-white cells. All 8 channels can simultaneously run IO-Link to smart weld-tip-cleaning sensors, temperature probes, and clamp-position switches, while the dual-port EtherNet/IP eliminates the need for an external switch. Placed directly on the weld-gun bracket with M12 cord-sets, it shortens IO runs by 60-70% vs a cabinet-based solution. Pair with a 1732IL IO-Link hub downstream if you exceed 8 ports per cell, and integrate upstream via EtherNet/IP into a CompactLogix 5380 controller.
Recommended
Material Handling Conveyor I/O Drop
Acts as a distributed IO-Link master at each conveyor section for zero-pressure-accumulation photo eyes, RFID readers, and motorized rollers. The 1732E-8IOLM12R lets each of 8 channels run different IO-Link device profiles (smart photo eye, IO-Link RFID, etc.) while feeding diagnostics back to the line PLC over dual-port EtherNet/IP - daisy-chained linearly along the conveyor without extra switches. The M12 auxiliary power feeds simplify mixed-power conveyor systems where motors and IO need separate disconnect. CIO Sync is not required for material-handling synchronization; the non-CIP-Sync variant of this part is the correct choice.
Recommended
High-Speed Packaging Line Sensor Hub
Hosts up to 8 IO-Link smart devices - color/contrast sensors, photoelectric eyes, ultrasonic level sensors, and barcode imagers - directly on the filler/capper/labeler station. The 1732E-8IOLM12R's per-channel configurable modes (DI/DO/IO-Link/fallback) let a single module serve both IO-Link color sensors and simple 24 V DC digital eyes on the same machine. Fallback mode preserves production if an IO-Link sensor temporarily loses communication. Dual-port EtherNet/IP supports line-topology daisy-chaining across packaging zones without switches, and the M12 connectors survive high-pressure washdown in hygienic-packaging lines.
Recommended
Food & Beverage Washdown Zone I/O
Provides machine-mount IO-Link for hygienic-zone valve banks, temperature/conductivity sensors, and CIP (clean-in-place) flow meters. The ArmorBlock IP67/IP69K housing is rated for daily high-pressure hot-water and chemical CIP washdown, eliminating the need for a separate stainless enclosure. Each of the 8 channels is configured as an IO-Link master port for IO-Link-enabled hygienic sensors, with fallback to standard DI for simple float switches. The dual-port EtherNet/IP allows line daisy-chain through the wash zone without external cabinets. AEP-Q100 is not applicable - food-industry washdown zones use IP69K rather than automotive-grade qualification.
Recommended
Tire & Rubber Manufacturing Floor I/O
Replaces cabinet-based remote I/O with on-machine IO-Link modules at each tire-building station. The 1732E-8IOLM12R serves 8 IO-Link smart sensors - bead setters, ply-stitch readers, and curing-press pressure transmitters - in the high-heat, oil-mist environment of tire building. Dual-port EtherNet/IP daisy-chains across many tire-building stations without expensive managed switches in the field. Per-channel diagnostics surface individual sensor faults to the line PLC quickly, cutting mean-time-to-repair when a sensor fails mid-build.
Recommended
Distributed I/O Station for PLC DDC
Used as a greenfield Digital-IO expansion station at a remote panel-less location, where long sensor cable runs back to a cabinet are impractical. The 1732E-8IOLM12R integrates 8 IO-Link ports and dual EtherNet/IP into one IP67 field-mountable block, eliminating the panel entirely. Integrated diagnostics indicate per-channel faults remotely, and the M12 auxiliary-power connector simplifies 24 V DC distribution across the plant. Compared to running 8 sensor cables back to a cabinet POINT I/O block, the ArmorBlock cut install labor and copper cost by up to 50% in long-run designs.
Recommended
Recommended Products Summary
Engineering reference data for 1732E-8IOLM12R — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | 1732E-8IOLM12R-CIP | 1732E-IB8M8SOER | 1732E-OB8M8SR |
|---|---|---|---|---|
| Brand | Rockwell Automation | Rockwell Automation | Rockwell Automation | Rockwell Automation |
| Package | ArmorBlock 1732E (M12 field-mount) | ArmorBlock 1732E (M12 field-mount) - same | ArmorBlock 1732E (M8/M12 field-mount) - same family, smaller I/O connectors | ArmorBlock 1732E (M8/M12 field-mount) - same family, smaller I/O connectors |
| Channel Count | 8 IO-Link / DI / DO / fallback / disabled | 8 IO-Link / DI / DO / fallback / disabled | 8 DI (digital input only, no IO-Link) | 8 DO (digital output only, no IO-Link) |
| IO-Link Master | Yes - 8 ports | Yes - 8 ports | No (digital input module) | No (digital output module) |
| CIP Sync Support | No (not supported) | Yes (IEEE 1588) | No | No |
| EtherNet/IP Ports | 2 (D-coded M12, switched dual-port) | 2 (D-coded M12, switched dual-port) | 2 (D-coded M12, switched dual-port) | 2 (D-coded M12, switched dual-port) |
| I/O Connector Type | M12 (5-pin DC Micro) | M12 (5-pin DC Micro) - same | M8 (4-pin, smaller form factor) | M8 (4-pin, smaller form factor) |
| Ingress Protection | IP67 / IP69K | IP67 / IP69K | IP67 / IP69K | IP67 / IP69K |
| Studio 5000 AOP | Yes - AOP v3.1.60 (225 MB) | Yes (per Rockwell compatibility center) | Yes | Yes |
Key Differentiators
- 8 fully-configurable IO-Link master ports in one ArmorBlock - no other 1732 member offers 8 IO-Link channels plus dual-port EtherNet/IP without a separate hub (vs 1732IL-4IOLM12)
- Dual-port D-coded M12 EtherNet/IP allows linear daisy-chain topology without external switches in the field (vs 1732 ArmorBlock 1732D family)
- Per-channel diagnostics surface IO-Link short, over-temperature, and lost-communication faults to the Logix controller without extra HMI scripting (vs 1732E-IB8M8SOER (digital input only))
Design Notes
Mount the ArmorBlock within the listed 24 V DC backplane/aux-power tolerance and reserve clearance for M12 cord-set bend radius. Per Rockwell 1732E-IN001B-EN-E installation instructions, secure the module to a flat mounting surface with the four corner bosses and torque per the datasheet; do not skip torque - vibration in on-machine installations is the most common cause of housing cracking. Leave 50 mm clear around M12 connectors for cord-set thumb-grip clearance.
Auxiliary power and EtherNet/IP switch power are separate feeds on the M12 connectors. Per Rockwell user manual 1732E-UM007C-EN-E, do not share a single 24 V DC run between motor supplies and IO-Link sensor L+/P24 - use a separate branch circuit with its own fuse, so field-side and logic-side power can be de-energized independently for safe hot-swap. Each IO-Link channel can source up to 200 mA on L+ and up to 2 A on P24 - derate accordingly when many actuators are powered from one module.
Per Rockwell 1732E-UM007C-EN-E, do not select CIP Sync for this module - it is intentionally unsupported and Studio 5000 templates will flag it as a configuration error if you try. IO-Link channels auto-fallback to standard digital I/O when the connected sensor enters fallback mode; configure the fallback semantics explicitly in the channel definition rather than relying on the AOP defaults. Keep the module firmware matched to AOP v3.1.60 to avoid odd configuration mismatches with the IODD device descriptions on the downstream IO-Link sensors.
Compliance Information
Industrial I/O module - AEC-Q100 not applicable (automotive discrete semiconductor standard). RoHS/REACH compliant per Rockwell product page. IP67/IP69K rating per Rockwell selection guide 1732-SG001K-EN-E.