Weidmuller UR20-4AI-RTD-DIAG 4-Channel RTD/TC Analog Input Module | Replacement, Equivalent & Selection Guide
The Weidmuller UR20-4AI-RTD-DIAG is a 4-channel analog input remote I/O module designed for the u-remote® UR20 series. It supports RTD (Resistance Temperature Detector) and thermocouple (TC) sensor types with integrated diagnostics, making it ideal for precise temperature measurement in demanding industrial environments. Available at Konmask.com — your trusted source for industrial automation components.
Technical Specifications
- Part Number: UR20-4AI-RTD-DIAG
- Manufacturer: Weidmuller
- Series: u-remote® UR20
- Module Type: Analog Input — RTD / Thermocouple
- Number of Channels: 4
- Sensor Types Supported: PT100, PT200, PT500, PT1000, Ni100, Ni120, Ni1000, KTY, TC types J/K/E/N/R/S/T/B/C
- Measurement Range: −200 °C to +850 °C (sensor-dependent)
- Resolution: 0.1 °C / 16-bit
- Diagnostics: Channel-level wire-break and short-circuit detection
- Supply Voltage: 24 V DC (via UR20 backplane bus)
- Current Consumption: Approx. 90 mA
- Weight: 91 g
- Protection Class: IP20
- Mounting: DIN rail, snap-on to UR20 coupler/head station
- Communication: Via UR20 head station (PROFIBUS, PROFINET, EtherNet/IP, Modbus TCP, etc.)
- Certifications: CE, UL, cULus
Compatible Replacement & Equivalent Models
If the UR20-4AI-RTD-DIAG is unavailable or you are evaluating alternatives, the following models offer comparable RTD/TC analog input functionality:
- Weidmuller UR20-4AI-RTD — Same channel count, without channel diagnostics; direct functional predecessor
- Phoenix Contact AXL F AI4 RTD1 F — 4-channel RTD input for Axioline F system; compatible with PROFINET/EtherNet/IP
- Beckhoff EL3204 — 4-channel PT100 RTD input terminal for EtherCAT; high-precision alternative
- Siemens 6ES7331-7PF11-0AB0 — S7-300 analog input module supporting RTD; suitable for SIMATIC S7 environments
- Turck TBEN-S2-4AI — IP67-rated 4-channel analog input; field-mount alternative for harsh environments
- Advantech ADAM-6015 — 7-channel RTD input module with Modbus TCP; Ethernet-based standalone option
Note: Cross-compatibility depends on your head station, fieldbus protocol, and software configuration. Contact [email protected] for selection assistance.
Why Choose the Original UR20-4AI-RTD-DIAG
- Integrated Channel Diagnostics: Wire-break and short-circuit detection per channel reduces downtime and simplifies fault isolation
- Wide Sensor Compatibility: Supports the broadest range of RTD and TC types in the UR20 lineup
- Seamless UR20 Integration: Plug-and-play with all UR20 head stations; no additional wiring adapters required
- High Resolution: 16-bit / 0.1 °C resolution for precision process control
- Compact DIN-Rail Design: Saves panel space while maintaining full I/O density
- Proven Reliability: Weidmuller u-remote® platform is deployed globally in process, energy, and manufacturing industries
Typical Applications
- Temperature monitoring in chemical and pharmaceutical processing
- HVAC and building automation systems
- Food & beverage production lines requiring precise thermal control
- Energy management and power generation facilities
- Water treatment and environmental monitoring
- Machine tool and press temperature feedback loops
System Compatibility
The UR20-4AI-RTD-DIAG is compatible with all Weidmuller UR20 head stations, including:
- UR20-FBC-PB (PROFIBUS DP)
- UR20-FBC-PN-IRT (PROFINET IRT)
- UR20-FBC-EIP (EtherNet/IP)
- UR20-FBC-MOD-TCP (Modbus TCP)
- UR20-FBC-EC (EtherCAT)
Compatible with engineering tools: Weidmuller u-remote® Configuration Software, GSDML/EDS files available for major PLC platforms (Siemens TIA Portal, Rockwell Studio 5000, Schneider EcoStruxure).
Selection Guide
Use the table below to select the right UR20 analog input module for your application:
- RTD/TC input + diagnostics needed → UR20-4AI-RTD-DIAG (this module)
- RTD/TC input, no diagnostics required → UR20-4AI-RTD
- 0–10 V / 4–20 mA analog input → UR20-4AI-UI or UR20-4AI-UI-16
- High-speed analog input → UR20-4AI-UI-16-DIAG-HD
- HART-enabled analog input → UR20-4AI-UI-HART
- Need IP67 field mounting → Consider Turck TBEN or Balluff BNI series
- Standalone Ethernet RTD logger → Advantech ADAM-6015
Quality Assurance & Sourcing
- All units sourced from authorized distributors or verified surplus channels
- Each module inspected for physical integrity and label authenticity before shipment
- Original manufacturer packaging preserved where available
- Traceability documentation available upon request
- Konmask.com specializes in industrial automation components for B2B buyers — OEM, MRO, and project procurement
How to Order
- Confirm your UR20 head station model and fieldbus protocol
- Verify required sensor types (RTD vs TC, specific grades)
- Add UR20-4AI-RTD-DIAG to cart or contact us for bulk/project pricing
- Request a datasheet, GSDML file, or wiring diagram via [email protected]
Lead time: In-stock items ship within 1–3 business days. For large quantities, contact us for availability and pricing.
Replacement & Compatibility FAQ
Q: Can the UR20-4AI-RTD-DIAG replace the UR20-4AI-RTD directly?
A: Yes. The DIAG variant is a drop-in upgrade — same form factor, same wiring, with added channel diagnostics. No hardware changes required.
Q: Is the Beckhoff EL3204 a direct replacement?
A: Functionally equivalent for RTD input, but it requires an EtherCAT infrastructure. Not a plug-in replacement for UR20 systems without a gateway.
Q: Does this module work with Siemens S7-1500 PLCs?
A: Yes, via a UR20-FBC-PN-IRT head station using PROFINET. GSDML files are available for TIA Portal integration.
Q: What is the difference between UR20-4AI-RTD-DIAG and UR20-4AI-UI-DIAG?
A: The RTD-DIAG is optimized for resistance/temperature sensors (PT100, TC, etc.), while the UI-DIAG handles standard voltage/current signals (0–10 V, 4–20 mA). They are not interchangeable.
Q: Can I mix RTD and TC sensor types on the same module?
A: Yes. Each channel is independently configurable for different RTD or TC sensor types via software.
© 2026 Konmask.com. All rights reserved.
Original Source: https://Konmask.com
Contact: [email protected] | +0086 19859288691
