Features:
- Provides massive storage for complex user programs and data blocks.
- Delivers binary instruction processing at approximately 0.05 µs for real-time control.
- Supports operation in the S5-135U/155U racks alongside other CPUs for distributed task management.
The expansive 640 KB RAM capacity of the 6ES5948-3UA11 represents a significant milestone for the S5 family, allowing engineers to implement highly detailed logic sequences without fear of memory exhaustion. This feature is particularly crucial for complex process industries, such as petroleum refining or large-scale automotive assembly, where thousands of data points must be tracked simultaneously.
In the realm of precision manufacturing, the speed of logic execution can determine the overall quality of the finished product. The 6ES5948-3UA11 excels here, offering an incredible binary processing speed of 0.05 microseconds. This rapid response time allows the controller to react almost instantaneously to sensor inputs, making it ideal for motion control and high-speed synchronized tasks.
The 6ES5948-3UA11 is designed to thrive in the modular environment of the S5-135U and 155U racks, where it can operate as a standalone processor or as part of a multi-processor configuration. This interoperability allows for the segmentation of control tasks, where one CPU might handle motion control while another manages HMI data and logging.
The 6ES5948-3UA11 Siemens CPU Module may still be available for purchase and support from Apter Power beyond
End-Of-Life (EOL)by the manufacturer (OEM).
Siemens 6ES5948-3UA11 CPU Module Manuals, Datasheets,Drivers,Link
Important Notice:Other accessories,manuals,cables,calibration data,software,etc.are not included with this equipment unless listed in the above stock item description.All prices are shown in USD.
Siemens 6ES5948-3UA11 CPU Module Specs
General
- Manufacturer Siemens
- Model 6ES5948-3UA11
- Condition New Original ready stock
- Product Family
6ES5948-3UA12,6ES5948-3UA21,6ES5947-3UA11
Important Notice:Other accessories,manuals,cables,calibration data,software,etc.are not
included with this equipment unless listed in the above stock item description.All prices are
shown in USD.
- Automotive Manufacturing: Coordinating high-speed assembly lines and robotic synchronization requiring rapid cycle times.
- Chemical and Process Industry: Managing complex PID control loops and extensive data logging for chemical batching and refineries.
- Power Plants: Controlling balance-of-plant (BOP) systems and monitoring thousands of digital/analog I/O points in real-time.
- Steel and Heavy Machinery: Operating rolling mills and furnace controls where deterministic logic execution is critical for safety and quality.
- System Status LEDs: Features front-panel indicators for RUN, STOP, and BASP (Output Inhibit). A red STP LED indicates a CPU transition to stop due to an error, while the BASP LED signals that all digital outputs have been de-energized for safety.
- Error Interrupts (OBs): The module utilizes Organization Blocks (e.g., OB121/OB122) to handle programming or I/O access errors. This allows the system to attempt a controlled recovery or safe shutdown rather than an immediate hard crash.
- Hardware Watchdog: An internal "Watchdog" timer monitors the software scan cycle. If the program execution exceeds a predefined time limit (indicating a loop or hang), the 6ES5948-3UA11 automatically triggers a system stop.
- Memory Protection: Since the 640 KB memory is RAM-based, the module relies on the power supply's lithium battery. It performs a checksum on startup to ensure program code has not been corrupted during power-down.
- Mechanical Installation: The module must be inserted into the designated CPU slots of the S5-135U/155U subrack. It is NOT hot-swappable; the rack power supply must be switched off before insertion or removal to prevent bus damage.
- Memory Management: When upgrading from a lower-tier CPU (like a CPU 944), ensure the STEP 5 program is reconfigured for the CPU 948's expanded memory map and instruction set. You may need to adjust the DB (Data Block) addressing to utilize the full 640 KB.
- Heat Dissipation: Due to its high processing power, the module generates significant heat (approx. 18W). Ensure the subrack's fan units are fully operational and the air filters are clean to prevent thermal throttling or hardware failure.