3ME963.90.1 B & R Automation
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The B & R Automation 3ME963.90.1 is part of the System 2005 Controllers series and features a lithium buffer battery and gold foil capacitor. This controller provides 1024 KByte of user flash memory, 512 KByte of user SRAM, and uses an LED status display. It measures 140 mm in height, 20 mm in width, and 90 mm in depth.
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Product Description:
B & R Automation’s 3ME963.90.1 module belongs to the System 2005 Controllers series and serves as a compact CPU unit for distributed machine control. The module hosts its program logic inside the hardware, eliminating the need for external carrier boards and fitting directly on the backplane of a System 2005 rack. In an automation cell, this controller executes user code that manages motion, I/O sequencing, and safety interlocks, while the integrated application memory and on-module write-protect switch help secure the stored program without additional tools.
With a panel footprint of only 20 mm in width, 90 mm in depth, and 140 mm in height, the controller occupies minimal cabinet space while preserving cable clearance. System states are indicated through an LED status display, allowing quick identification of run, error, or battery alarms without external instrumentation. Buffering of real-time data is provided by a lithium battery, and volatile registers receive short-term support from a gold foil capacitor; together these components sustain the real-time clock and retain variables during power loss until orderly shutdown routines complete. The operating system is loaded with PCC software and resides in dedicated system flash so the user area remains unaffected by operating system updates.
The application layer is stored in 1024 KByte of nonvolatile FlashPROM, while dynamic variables execute in 512 KByte of SRAM for deterministic cycle times. When cabinet power is removed, the battery maintains this memory for at least 2 years, and the capacitor bridges short outages of up to 10 min, preventing unexpected data loss between controlled stops. A maximum storage interval of three years at 30 °C is specified for warehousing before battery replacement is required. An on-module switch enables write protection of the application memory, helping preserve code integrity during transport and service.
Frequently Asked Questions about 3ME963.90.1:
Q: What type of buffer battery does the 3ME963.90.1 controller use?
A: This model uses a lithium battery for buffering system data.
Q: How is the operational status indicated on the 3ME963.90.1?
A: The status of the controller is displayed using integrated LEDs.
Q: What is the available user FlashPROM capacity in the 3ME963.90.1?
A: The controller has 1024 KBytes of user FlashPROM for data storage.
Q: What is the minimum buffer time provided by the battery on the 3ME963.90.1?
A: The minimum battery buffer duration is 2 years for this model.
Q: How is write protection implemented on the 3ME963.90.1 controller?
A: The write protect function is controlled by an on-module switch.
