Product Details
The ABB 1SAP212000R0001, also cataloged as the TU516 I/O Terminal Unit, operates as a dedicated hardware component for field signal termination and module backplane bus routing within ABB AC500 platforms. Configured with spring terminals, this base unit provides direct physical/electrical execution to support plugged S500 analog and 24 VDC digital I/O modules.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | TU516 |
| Product ID | 1SAP212000R0001 |
| Brand | ABB |
| Product Type | I/O Terminal Units / Mounting Racks |
| System Platform | ABB AC500 / S500 I/O System |
| Terminal Connection Type | Spring terminals |
| Module Compatibility | Analog and 24 VDC digital S500 I/O modules |
| Operating Supply Voltage | 24 V DC |
| Ingress Protection | IP20 |
| Net Width | 67.5 mm |
| Net Height | 135 mm |
| Net Depth / Length | 28 mm |
| Net Weight | 0.159 kg |
| Operating Temp | 0 to +60 deg C |
| Power Consumption | Passive bus termination (Negligible internal loss) |
| Origin | Germany |
Backplane Bus Interfacing and Deterministic Communications
The TU516 terminal base establishes high backplane bus communication velocity across adjacent S500 expansion slots. Internal printed trace routing distributes 24 VDC supply voltage and backplane data lines directly to inserted I/O modules without requiring external jumpers. The integrated terminal interface maintains firmware flash compatibility and deterministic signal transfer between the central processor unit and field-side sensors or actuators.
Frequently Asked Questions
Q: What module families are compatible with the TU516 spring terminal base?
A: The TU516 base unit accommodates S500 series analog modules and 24 VDC digital input/output modules.
Q: How is field wiring secured on the TU516 unit?
A: Field connections utilize spring terminals, enabling tool-less wire insertion and vibration-resistant physical contact.
Q: Does removing a plugged I/O module break the backplane continuity to downstream units?
A: No. The internal backplane bus pass-through logic remains intact on the TU516 base unit even when the active I/O card is extracted.
Field Installation Guidelines
- Snap the TU516 terminal unit onto a standard 35 mm DIN rail, ensuring the grounding spring contacts the metal rail firmly.
- Connect the 24 VDC system power supply conductors to the designated power terminals on the spring block.
- Insert stripped field signal wires directly into the spring clamp terminals using a standard screwdriver to release tension if using flexible stranded wire without ferrules.
- Align the target S500 I/O module over the guide slots of the TU516 base and push firmly until the mechanical locking latches click shut.
- Maintain dedicated wire routing channels to separate 24 VDC field signal wiring from high-voltage AC distribution power cables.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
Tech & Buying Guide
Mastering Functional Safety Terminology in Industrial Automation
In modern process control and factory automation, managing operational risk is a top engineering priority. High-speed machinery, high-pressure vessels, and continuous processes present constant hazards to personnel and equipment. Modern plant operations rely heavily on functional safety strategies to mitigate these risks. This guide breaks down the essential functional safety terminology that every control systems engineer should master.
Understanding Dry Contacts in PLC Wiring: An Industrial Automation Guide
Mastering contact switching principles is essential for reliable control panels. Field devices and PLCs interface through dry or wet contacts. This technical guide examines the mechanics of dry contacts, explores their wiring architectures, and evaluates their key advantages in industrial automation.
Ultimate Commissioning Checklist for Industrial Automation Systems: An Engineering Guide
Commissioning is the most decisive phase of an industrial automation project, transforming control hardware and software into an operational facility. Thorough testing prevents costly startup delays and builds customer confidence. This guide covers essential checklists, electrical standards, and best practices.