R. STAHL Series 9440/15: The Ultimate CPU & Power Module for Hazardous Areas ⚡
Navigating the complexities of hazardous environments requires equipment that is not only reliable but also specifically designed for safety and efficiency. The R. STAHL Series 9440/15 CPU & power module is an exceptional solution tailored for Zone 2/Division 2 applications. This powerful and compact device serves as the heart of your industrial automation system, providing intrinsically safe power and robust communication capabilities.
What is the Series 9440/15 CPU & Power Module?
The Series 9440/15 CPU & power module (CPM) is a key component in R. STAHL’s IS1+ Remote I/O systems. Its primary function is to supply up to
16 IS1+ I/O modules and their corresponding field circuits with intrinsically safe power. This ensures that your system operates safely in potentially explosive atmospheres, adhering to stringent explosion protection standards.
The module is engineered to handle various communication protocols, including
PROFIBUS DP V0/V1 HART and Modbus RTU. This flexibility allows it to integrate seamlessly with your existing automation systems.
Key Features & Benefits
Robust Communication and Redundancy 📡
Communication is critical in industrial automation. The 9440/15 series uses
RS485 for communication with the automation system, supporting protocols like PROFIBUS DP and Modbus RTU. This module is also designed to support system redundancy and optical rings, which are crucial for maintaining continuous operation and minimizing downtime.
The copper RS485 connection offers impressive transmission lengths, supporting:
1200 m at 9.6 to 93.75 kbit/s
1000 m at 187.5 kbit/s
400 m at 500 kbit/s
200 m at 1.5 Mbit/s
The module’s fieldbus and ServiceBus connections are both via a 9-pole Sub-D socket.
Seamless Integration with Plant Asset Management Systems 🧩
Efficient asset management is key to optimizing plant performance. The Series 9440/15 module integrates easily into plant asset management systems using
Service Bus and FDT/DTM. This integration provides access to valuable diagnostic data and helps streamline maintenance and operational tasks. For those using Siemens PCS7, the module offers simple integration with versions V9 SP2 to V9.1 SP2, utilizing PROFIBUS DP with CPM 9440.
High Reliability and Safety Certifications ✅
Safety is at the core of the R. STAHL design. The Series 9440/15 holds a variety of international certifications, ensuring it meets the highest safety standards for explosive atmospheres. These include:
IECEx gas explosion protection: Ex ec [ia, ib Gb] IIC T4 Gc
ATEX gas explosion protection: II 3 (2) G Ex ec [ia, ib Gb] IIC T4 Gc
The product has also been certified by multiple global bodies, including
ATEX (PTB), Canada (FM), China (NEPSI), IECEx (PTB), Korea (KTL), and USA (FM). Additionally, it has received ship approval from organizations like ABS, BVIS, and LR.
Designed for Harsh Environments 🌡️
The module is built to withstand demanding conditions, with an ambient temperature range of
-20°C to +65°C. It features a
IP20 degree of protection for connections and IP30 for the module itself, as per IEC 60529 standards. This robust construction ensures long-term reliability in industrial settings.
Technical Specifications
Electrical Data
Auxiliary Power Voltage Range: 20 to 35 V DC
Current Consumption:
Without I/O modules: 0.3 A at 24 V DC
With 8 I/O modules: Approx. 2.5 A at 24 V DC
With 16 I/O modules: Approx. 4.9 A at 24 V DC
Dimensions & Weight
The compact design of the module makes it easy to install in a variety of setups.
Width: 96.5 mm
Depth: 107 mm
Length: 148 mm
Weight: 610 g
Accessories
To complete your system, R. STAHL offers a range of compatible accessories:
Cables for PROFIBUS DP, RS485, RS485-IS: Available in various types for indoor, outdoor, and offshore applications.9-pin Sub-D plug: For connecting fieldbus or ServiceBus to the CPU & power module.
Fieldbus isolating repeaters: The Series 9185/12 for safe areas or Zone 2/Div. 2 and the FO fieldbus isolating repeaters for Zone 2/Div. 2, which support optical rings.
Conclusion
The R. STAHL Series 9440/15 CPU & power module is an indispensable tool for safe and efficient operations in hazardous areas. Its ability to provide intrinsically safe power, support multiple communication protocols, and offer system redundancy makes it a standout product in the market. With its robust build and comprehensive safety certifications, it provides the peace of mind and reliability that your plant needs.