Allen-Bradley 1715-TASOF8 Analog Output | Replacement, Equivalent & Selection Guide
Technical Specifications
- Part Number: 1715-TASOF8
- Manufacturer: Allen-Bradley / Rockwell Automation
- Series: ControlLogix 1715 Redundant I/O
- Module Type: Redundant Analog Output Module
- Output Channels: 8 analog output channels
- Output Signal: 4–20 mA / 0–20 mA (current); ±10 V (voltage)
- Resolution: 16-bit
- Redundancy: Full hardware redundancy with automatic failover
- Backplane: 1715 Redundant I/O Adapter compatible
- Communication: EtherNet/IP via 1715-AENTR adapter
- Operating Temperature: 0 °C to 60 °C
- Power Consumption: Per Rockwell Automation 1715 series datasheet
- Certifications: CE, UL, cUL, ATEX (zone 2 capable)
- Form Factor: DIN-rail / chassis mount via 1715 I/O base
Compatible Replacement & Equivalent Models
When the 1715-TASOF8 is unavailable or under evaluation, engineers commonly consider the following alternatives. Verify compatibility with your system architecture before substitution.
- 1715-OF8I — Allen-Bradley 1715 series 8-ch isolated analog output (non-redundant pair variant); same backplane, different redundancy topology
- 1756-OF8 — ControlLogix standard analog output module; suitable for non-redundant architectures; requires chassis migration
- 1756-OF8H — ControlLogix HART-enabled analog output; drop-in for 1756 chassis, not 1715 chassis
- 1715-TASIF8 — Companion redundant analog input module in the same 1715 series; often specified alongside the TASOF8
- Siemens ET 200M / SM 332 — Cross-brand equivalent for redundant analog output in S7-400H systems; requires full platform migration
- Emerson DeltaV SIS AO module — Safety-rated analog output for SIL-2 applications; different protocol and engineering environment
Note: Cross-brand replacements require re-engineering of I/O mapping, communication configuration, and safety validation. Contact Konmask for a compatibility assessment.
Why Choose the Original Model
- Native Redundancy: The 1715-TASOF8 is purpose-built for the 1715 redundant I/O architecture — no external switching hardware required.
- Bumpless Failover: Automatic, sub-millisecond switchover between primary and secondary modules preserves process continuity.
- Rockwell Ecosystem Integration: Fully supported in Studio 5000 Logix Designer with pre-built Add-On Instructions (AOIs) and faceplates.
- Long-Term Support: Rockwell Automation provides firmware updates, spare parts, and technical support for the 1715 platform.
- Reduced Validation Effort: Using the OEM module eliminates re-validation costs associated with third-party substitutes in regulated industries.
Typical Applications
- Oil & Gas: Wellhead control, pipeline pressure regulation, compressor anti-surge control requiring continuous output availability
- Power Generation: Turbine governor control, boiler feedwater regulation, generator excitation systems
- Chemical & Petrochemical: Reactor temperature and flow control loops where output failure is not tolerable
- Water & Wastewater: Pump speed control and dosing systems in critical treatment facilities
- Pharmaceutical: Bioreactor and fermentation process control under FDA 21 CFR Part 11 environments
- Mining: Conveyor drive control and slurry pump regulation in high-availability operations
System Compatibility
- Compatible Adapters: 1715-AENTR (EtherNet/IP redundant adapter)
- Compatible Controllers: ControlLogix L7x, L8x series with redundancy enabled; GuardLogix (with appropriate safety configuration)
- Compatible Software: Studio 5000 Logix Designer v21 and later; FactoryTalk View SE/ME for HMI integration
- I/O Base: 1715 series I/O base units (specify channel count at ordering)
- Not Compatible With: CompactLogix, MicroLogix, or SLC 500 platforms without significant re-engineering
Selection Guide
Use the following criteria to confirm the 1715-TASOF8 is the correct module for your application:
- ✅ You require hardware-redundant analog output with automatic failover
- ✅ Your system uses a 1715 Redundant I/O chassis with 1715-AENTR adapter
- ✅ You need 8 analog output channels per module pair
- ✅ Your process demands continuous output during controller or module fault
- ✅ You are programming in Studio 5000 Logix Designer
- ❌ If you only need standard (non-redundant) analog output → consider 1756-OF8
- ❌ If you need HART communication → consider 1756-OF8H in a 1756 chassis
- ❌ If your application is safety-rated SIL 2/3 → consult Rockwell for GuardLogix + 1715 SIL configuration
Quality Assurance & Sourcing
- Authenticity: All 1715-TASOF8 units sourced by Konmask are verified against Rockwell Automation authorized supply chains.
- Inspection: Each module undergoes visual inspection, label verification, and functional power-on testing prior to shipment.
- Condition: New, surplus-new, and refurbished grades available — clearly labeled on each listing.
- Warranty: 12-month replacement warranty on all units shipped from Konmask.com.
- Counterfeit Prevention: We do not source from unverified grey-market channels. Serial number traceability available on request.
How to Order
- Part Number: 1715-TASOF8
- Manufacturer: Allen-Bradley / Rockwell Automation
- Lead Time: Contact us for current stock and lead time
- MOQ: 1 unit
- Shipping: DHL / FedEx international express; EXW Xiamen available
- Payment: T/T, PayPal, trade assurance accepted
- RFQ: Email support@konmask.com or WhatsApp +0086 19859288691
Replacement & Compatibility FAQ
Q: Can I replace a 1715-TASOF8 with a 1756-OF8 without changing the chassis?
A: No. The 1715-TASOF8 uses the 1715 redundant I/O backplane, which is physically and electrically incompatible with the 1756 ControlLogix chassis. A chassis change and I/O remapping are required.
Q: Is the 1715-TASOF8 a safety-rated (SIL) module?
A: The standard 1715-TASOF8 is not SIL-rated. For SIL 2 applications, consult Rockwell Automation for the appropriate GuardLogix + 1715 SIL configuration.
Q: Can one 1715-TASOF8 operate without a redundant pair?
A: Yes, a single module can operate in simplex mode, but redundancy benefits are only realized when a primary/secondary pair is installed in the 1715 base.
Q: What firmware version does the 1715-TASOF8 require?
A: Refer to the Rockwell Automation Product Compatibility and Download Center (PCDC) for the minimum firmware version compatible with your controller revision.
Q: Does Konmask provide a datasheet or wiring diagram?
A: Yes. Contact support@konmask.com with your part number and we will provide the relevant Rockwell Automation technical documentation.
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