6ES7972-0CB20-0XA0 SIEMENS Servo Motor Encoder -20°C To +85°C 50kHz 10–30 VDC
6ES7972-0CB20-0XA0 Description
The 6ES7972-0CB20-0XA0 is a high‑quality, compact PROFIBUS DP bus connector from Siemens, designed for reliable fieldbus connection in SIMATIC S7‑300/400 PLC systems and other PROFIBUS DP devices. It enables secure, fast, and interference‑resistant data transmission between PROFIBUS nodes, supporting both standard and fast baud rates up to 12 Mbps. Featuring a 90° angled design, screw terminal connection, and integrated termination resistor, it ensures stable communication in industrial automation environments, suitable for both linear and tree‑structured PROFIBUS DP networks.
6ES7972-0CB20-0XA0 Key Features
- High‑Speed Communication: Supports PROFIBUS DP baud rates from 9.6 kbps up to 12 Mbps for fast and stable data transfer
- Integrated Termination: Built‑in 150 Ω termination resistor with on/off switch for easy network termination
- Angled Design: 90° right‑angle connector for space‑saving installation in control cabinets and tight spaces
- Secure Connection: Screw terminal wiring (for 0.5–1.5 mm² cables) with strain relief, ensuring reliable contact and vibration resistance
- Shielded Connection: Integrated shield connection for EMC protection, minimizing electromagnetic interference in industrial environments
- Plug‑and‑Play: Easy installation without additional tools, compatible with all standard PROFIBUS DP cables
- Wide Compatibility: Fully compatible with Siemens SIMATIC S7‑300, S7‑400, ET200, and other PROFIBUS DP slave/master devices
- Robust Build: Industrial‑grade construction for continuous operation in harsh factory conditions
- LED Indicator (Optional): Supports diagnostic LED for quick network status monitoring (when paired with compatible devices)
6ES7972-0CB20-0XA0 Materials & Applications
Materials
- Housing: High‑strength, flame‑retardant thermoplastic (UL94 V‑0) for impact resistance and fire safety
- Contact Pins: Gold‑plated copper alloy for low contact resistance, corrosion resistance, and long service life
- Terminals: Nickel‑plated brass screw terminals for secure cable clamping
- Internal Circuit: High‑precision PCB with thick‑film resistors for stable termination performance
- Shield Clamp: Conductive metal clamp for reliable grounding of cable shield
- Cable Gland: Plastic strain‑relief gland for secure cable retention
Typical Applications
- SIMATIC PLC Systems: Connection for S7‑300, S7‑400 CPU and I/O modules in PROFIBUS DP networks
- Distributed I/O: Linking ET200 remote I/O stations to the main PLC
- Industrial Field Devices: Connecting drives, HMI, sensors, actuators, and valves to PROFIBUS DP
- Factory Automation: Assembly lines, packaging machines, material handling systems
- Process Control: Chemical, pharmaceutical, and food processing plants
- Machine Tools & Robotics: Reliable bus connection for CNC machines and robotic systems
- Building Automation: HVAC, fire safety, and access control systems with PROFIBUS integration
6ES7972-0CB20-0XA0 Important Parameters
| Parameter |
Specification |
| Part Number |
6ES7972-0CB20-0XA0 |
| Brand |
Siemens |
| Product Type |
PROFIBUS DP Bus Connector (90° Angled) |
| Network Standard |
PROFIBUS DP (EN 50170) |
| Baud Rate |
9.6 kbps – 12 Mbps (auto‑detectable) |
| Termination Resistor |
Integrated 150 Ω, switch‑controlled (ON/OFF) |
| Cable Compatibility |
PROFIBUS DP cable (type A/B), conductor cross‑section 0.5–1.5 mm² |
| Connection Type |
Screw terminal (no soldering required) |
| Connector Angle |
90° right‑angle |
| Number of Ports |
1 PROFIBUS DP port (9‑pin D‑sub male) |
| Shield Connection |
Integrated shield clamp for EMC grounding |
| Operating Temperature |
-40 °C to +70 °C |
| Storage Temperature |
-40 °C to +85 °C |
| Humidity |
5–95% RH (non‑condensing) |
| Protection Degree |
IP20 (enclosed, for cabinet installation) |
| Dimensions (L×W×H) |
55 × 35 × 25 mm |
| Weight |
Approx. 35 g |
| Certifications |
CE, UL, cUL, RoHS, PROFIBUS International Certified |
| Compatibility |
SIMATIC S7‑300/400, ET200, all PROFIBUS DP devices |
| Status |
Active Production |
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