B&R X20AT6402 Temperature Input Module – 4‑channel RTD measurement for precise machine and process control

The B&R X20AT6402 is a compact temperature input module for the X20 I/O system. It’s designed for accurate RTD acquisition on machines where stability matters—think thermal chambers, extrusion lines, CNC spindles, food & beverage tunnels, or HVAC skids. From my experience, it slots neatly into existing X20 racks and gives you clean, reliable temperature data without eating panel space.

Company’s Order Placement Process and Guarantees

• Warranty: 365 days
• Delivery: 1 week for in-stock; no more than one month at the latest
• Payment: 50% advance payment, full payment before delivery
• Express delivery: FedEx, UPS, DHL

Key Features

• 4 RTD channels – Typically supports Pt100/Pt1000 (and in many cases Ni100); ideal for multi-point temperature monitoring on a single module.
• 2/3/4‑wire connection – 3‑ and 4‑wire wiring helps cancel lead resistance for better accuracy on long runs.
• High‑resolution conversion – Suited for fine process control; you might notice smoother PID performance when replacing older cards.
• Diagnostics per channel – Open‑circuit and out‑of‑range detection make commissioning faster and service calls shorter.
• Compact 12.5 mm slice – Saves cabinet width; wiring remains accessible with the removable terminal block.
• X20 ecosystem ready – Parameterization and status available via the X20 backplane; easy mapping in Automation Studio.
• Noise‑aware design – Configurable filtering (50/60 Hz suppression is typical) helps in electrically noisy cabinets.

Technical Specifications

If you’re migrating from bulkier analog cards, you’ll likely see a cleaner cabinet layout and simpler service routines. One thing I appreciate is how predictable the channel diagnostics are—technicians usually identify wiring mistakes within minutes.

Related or Supporting Products

• B&R X20AT4222 – Thermocouple input module for J/K/T/E/N/R/S sensors when RTD is not preferred.
• B&R X20AI4622 – Analog input (voltage/current) for process signals alongside temperature.
• B&R X20PS9400 – Power supply module for X20 racks (24 VDC system supply).
• B&R X20BM11 – X20 base module for mounting/connecting I/O slices on the backplane.
• B&R X20TB12 / X20TB52 – Removable terminal blocks (screw or spring) to simplify field wiring and service.

A packaging client recently swapped older temperature cards for X20AT6402 units on an oven zone controller. The feedback was simple: “Channel mapping was straightforward, and the 3‑wire Pt100s read steady—no more drifting when motors start.” That matches what we typically see in mixed‑signal cabinets.

Installation & Maintenance

• Cabinet & mounting – Install on a DIN rail with the correct X20 base. Keep adequate vertical clearance for natural convection; follow EN 60204‑1 panel practices.
• Wiring – Use shielded twisted pairs for RTDs over distance. Prefer 3‑ or 4‑wire RTD connections for accuracy; land shields at a single reference point to avoid loops.
• Grounding – Bond DIN rail and panel ground properly. Separate high‑current motor cabling from sensor wiring.
• Configuration – Set each channel’s sensor type and wiring mode in Automation Studio; enable wire‑break detection and any 50/60 Hz rejection as needed.
• Routine checks – Verify terminal torque annually, clean dust with dry air, and log channel drift. A spot check with a certified RTD simulator typically helps validate accuracy.
• Firmware/project care – Keep the PLC runtime and project hardware configuration backed up; apply firmware updates during planned downtime only.

Quality & Certifications

• CE and cULus conformity (typical for B&R X20 modules)
• RoHS compliant materials
• Manufactured under ISO 9001 quality systems
• Supplier warranty: 365 days

If you’d like, share your sensor types and wiring length. I can suggest the best 2/3/4‑wire setup and confirm any filtering options so the X20AT6402 performs exactly as you expect on day one.