Phoenix AXL F Series: Modular Industrial I/O Modules - Selection Guide
Product Overview
The Phoenix AXL F Series is a scalable modular I/O system designed for distributed industrial automation. Covering safety digital I/O (PSDI/PSDO/PSDOR), standard digital I/O (DO/DI), explosion-proof intrinsic safety (EX IS) I/O, and communication modules, these modules support high channel densities (up to 64 channels), diverse voltage ratings, and compatibility with industrial fieldbuses. Featuring XC (extended temperature) and FLK (interface) variants, compact XC/1F/2F/1H/2H housing options, and compliance with safety standards (SIL 3, EN ISO 13849-1) and explosion-proof certifications (ATEX/IECEx), they’re ideal for process control, manufacturing lines, and hazardous area applications—enabling flexible I/O expansion and reliable signal transmission in critical industrial scenarios.
Model Quick Reference Table
1. Safety I/O Modules
| Model No. | Product Name | Function Type | Core Features | Application Scenarios |
|---|---|---|---|---|
| 2702858 | AXL F PSDOR4/2 1F | Safety Digital Output (Relay) | 4-channel safety relay output, 1F housing | Safety-critical load control (emergency stops, safety doors) |
| 2701560 | AXL F PSDO8/3 1F | Safety Digital Output | 8-channel safety DO, 3A per channel, 1F housing | High-density safety output expansion |
| 2701559 | AXL F PSDI8/4 1F | Safety Digital Input | 8-channel safety DI, 4mA sink/source, 1F housing | Safety sensor signal acquisition (safety switches, interlocks) |
| 2702171 | AXL F LPSDO8/3 1F | Standard Safety Digital Output | 8-channel standard safety DO, 3A per channel | Cost-effective safety output for non-critical safety loops |
2. Standard Digital Output (DO) Modules
| Model No. | Product Name | Function Type | Core Features | Application Scenarios |
|---|---|---|---|---|
| 2700608 | AXL F DOR4/2 AC/220DC 1F | Digital Output (Relay) | 4-channel relay output, AC/220DC compatible | Mixed AC/DC load control (valves, pumps) |
| 2688381 | AXL F DO8/2 2A 1H | Digital Output | 8-channel DO, 2A per channel, 1H housing | Medium-current standard load control |
| 2702053 | AXL F DO64/1 2F | Digital Output | 64-channel DO, high density, 2F housing | Large-scale distributed output expansion |
| 2701230 | AXL F DO32/1 XC 1F | Digital Output (Extended Temp) | 32-channel DO, XC (extended temp), 1F housing | Extreme temperature environment output control |
| 1004925 | AXL F DO32/1 2H | Digital Output | 32-channel DO, 2H housing | Heavy-duty standard output expansion |
| 2688051 | AXL F DO32/1 1F | Digital Output | 32-channel DO, compact 1F housing | Standard high-density output control |
| 2701228 | AXL F DO16/3 XC 2F | Digital Output (Extended Temp) | 16-channel DO, 3A per channel, XC, 2F housing | High-current output in extreme temps |
| 2688048 | AXL F DO16/3 2F | Digital Output | 16-channel DO, 3A per channel, 2F housing | High-current standard output control |
| 1027904 | AXL F DO16/2 2H | Digital Output | 16-channel DO, 2A per channel, 2H housing | Medium-duty 16-channel output expansion |
| 2688349 | AXL F DO16/1 1H | Digital Output | 16-channel DO, 1A per channel, 1H housing | Light-load 16-channel output control |
| 2701813 | AXL F DO16 FLK 1H | Digital Output (FLK Interface) | 16-channel DO, FLK interface | FLK-compatible control system output integration |
3. Explosion-Proof (EX IS) I/O Modules
| Model No. | Product Name | Function Type | Core Features | Application Scenarios |
|---|---|---|---|---|
| 1086901 | AXL F EX IS DO4 SD 24-48 XC 1F | Intrinsically Safe DO | 4-channel EX IS DO, 24-48V DC, XC, 1F | Hazardous area (ATEX/IECEx) safe output |
| 1086902 | AXL F EX IS DO4 SD 21-60 XC 1F | Intrinsically Safe DO | 4-channel EX IS DO, 21-60V DC, XC, 1F | Wide-voltage hazardous area safe output |
| 1052423 | AXL F EX IS DI16 NAM XC 1F | Intrinsically Safe DI | 16-channel EX IS DI, NAMUR-compatible, XC | Hazardous area NAMUR sensor signal acquisition |
| 1087081 | AXL F EX IS AO4 HART XC 1F | Intrinsically Safe AO | 4-channel EX IS AO, HART protocol, XC | Hazardous area HART-enabled analog output |
| 1052432 | AXL F EX IS AI8 HART XC 1F | Intrinsically Safe AI | 8-channel EX IS AI, HART protocol, XC | Hazardous area HART-enabled analog input |
4. Communication & Special Modules
| Model No. | Product Name | Function Type | Core Features | Application Scenarios |
|---|---|---|---|---|
| 1027843 | AXL F IOL8 2H | I/O Link Module | 8-channel I/O Link, 2H housing | I/O Link master/slave communication |
| 2702668 | AXL F IF CAN 1H | CAN Bus Interface | CAN bus communication module, 1H housing | CAN bus network integration |
Core Technical Specifications (Universal)
| Parameter | Value | Notes |
|---|---|---|
| Supply Voltage | 24V DC (19.2~28.8V); 220V DC/AC (specific models) | Model-dependent voltage compatibility |
| Safety Certifications | SIL 3, EN ISO 13849-1 (safety modules) | Safety I/O meets critical safety requirements |
| Explosion-Proof Certifications | ATEX, IECEx (EX IS models) | For use in hazardous areas (Zone 1/2, 21/22) |
| Operating Temperature | Standard: -25℃~70℃; XC variants: -40℃~85℃ | Extended temp for extreme environments |
| Mounting Type | 35mm DIN rail (NS 35/7.5) | Modular snap-fit installation |
| Housing Variants | 1F (compact), 2F (medium), 1H (heavy-duty), 2H (high-power) | Fit different space/power needs |
| Channel Current Ratings | 1A~3A (standard DO); 2A~3A (safety DO); EX IS: Limited by intrinsic safety | Load-dependent current capacity |
| Protection Class | IP20 (cabinet mounting) | Dust-proof for industrial control cabinets |
| Communication Compatibility | CAN bus, I/O Link, FLK interface (model-dependent) | Integrates with diverse industrial networks |
| Certifications | CE, UL, CSA, ATEX/IECEx (EX IS models) | Global industrial and hazardous area compliance |
| Power Consumption | ≤1.5W per 8-channel module; ≤3W per 32-channel module | Low heat generation for dense mounting |
Application Scenarios & Recommended Models
1. Safety-Critical I/O Expansion
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Requirement: 8-channel safety DI for safety sensors (interlocks, emergency stops)
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Recommended Model: 2701559 (AXL F PSDI8/4 1F)
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Key Reason: Safety-certified (SIL 3) for critical loops; 4mA sink/source compatibility with most safety sensors
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Requirement: 4-channel safety relay output for high-priority loads
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Recommended Model: 2702858 (AXL F PSDOR4/2 1F)
-
Key Reason: Safety relay output ensures fail-safe operation; compact 1F housing saves space
2. High-Density Standard Output Control
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Requirement: 64-channel large-scale distributed DO expansion
-
Recommended Model: 2702053 (AXL F DO64/1 2F)
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Key Reason: Industry-leading channel density; 2F housing balances space and reliability
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Requirement: 32-channel DO for extreme temperature (-40℃~85℃) environments
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Recommended Model: 2701230 (AXL F DO32/1 XC 1F)
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Key Reason: XC extended temperature rating; compatible with harsh industrial conditions
3. Hazardous Area (Explosion-Proof) I/O
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Requirement: 8-channel HART-enabled analog input in Zone 1 hazardous area
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Recommended Model: 1052432 (AXL F EX IS AI8 HART XC 1F)
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Key Reason: ATEX/IECEx certification; HART protocol support for smart sensors
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Requirement: 16-channel NAMUR sensor input in explosive environments
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Recommended Model: 1052423 (AXL F EX IS DI16 NAM XC 1F)
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Key Reason: NAMUR compatibility; intrinsic safety design for hazardous locations
4. Industrial Network Integration
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Requirement: CAN bus communication module for distributed I/O
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Recommended Model: 2702668 (AXL F IF CAN 1H)
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Key Reason: Dedicated CAN bus interface; 1H heavy-duty housing for industrial reliability
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Requirement: I/O Link master for smart sensor integration
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Recommended Model: 1027843 (AXL F IOL8 2H)
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Key Reason: 8-channel I/O Link support; 2H housing for high-power applications
Core Advantages
- Modular Scalability: Mix safety/standard/EX IS modules for custom I/O configurations; expand from 4 to 64 channels
- Safety & Explosion-Proof Options: Safety modules meet SIL 3/PL e; EX IS variants certified for ATEX/IECEx hazardous areas
- Extended Environment Adaptation: XC variants handle -40℃~85℃; standard models adapt to -25℃~70℃
- High Channel Density: Up to 64-channel DO modules minimize cabinet space for large-scale systems
- Diverse Communication Compatibility: Supports CAN bus, I/O Link, FLK interfaces for seamless network integration
- Flexible Housing Options: 1F/2F (compact) and 1H/2H (heavy-duty) fit space/power requirements
- Global Compliance: CE/UL/CSA/ATEX/IECEx certifications enable international deployment
Installation & Usage Notes
- Module Compatibility: Ensure modules are compatible with AXL F base units (check firmware version for communication modules)
- Voltage Matching: Verify supply voltage and load voltage align with module ratings (e.g., 24-48V for EX IS DO modules)
- Explosion-Proof Installation: EX IS modules must be installed per ATEX/IECEx guidelines; use approved cables and barriers
- Housing Selection: Choose 1H/2H housing for high-power/heavy-load applications; 1F/2F for space-constrained cabinets
- Wiring Specifications: Use 0.14~2.5mm² conductors for signal lines; shielded cables for EX IS and communication modules
- Mounting Spacing: Reserve ≥5mm between modules for heat dissipation; XC variants require no additional spacing
- Safety Wiring: For safety I/O, separate safety and standard wiring by ≥10mm; follow EN 61508 loop design guidelines
Phoenix AXL F Series: Modular Industrial I/O Modules - Selection Guide
