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AC 800M Controllers – PM857K01

The CPU board contains the microprocessor and RAM memory, a real-time clock, LED indicators, INIT push button, and a CompactFlash interface.

The base plate of the PM857 controller has two RJ45 Ethernet ports (CN1, CN2) for connection to the Control Network, and two RJ45 serial ports (COM3, COM4). One of the serial ports (COM3) is an RS-232C port with modem control signals, whereas the other port (COM4) is isolated and used for the connection of a configuration tool. The controller supports CPU redundancy for higher availability (CPU, CEX-Bus, communication interfaces and S800 I/O).

The high integrity functionality is enabled by the addition of an SM812 module and the SIL-certified software. This enables non-critical control schemes to be upgraded to SIL-certified schemes by the addition of a plug-in SM81x module, plus a selection of the appropriate software. The AC 800M High-Integrity also offers IEC 61508 and TÜV-certified control environment for combining safety and business-critical process control in one controller unit without sacrificing the safety integrity.

The PM857 can handle Max 128 I/O signals. Certified for SIL3. Requires configuration according to Safety Manual.

Features and Benefits

  • Reliability and simple fault diagnosis procedures
  • Modularity, allowing for step-by-step expansion
  • IP20 Class protection without the requirement for enclosures
  • The controller can be configured with 800xA control builder
  • The controller has full EMC certification
  • Hardware based on standards for optimum communication connectivity (Ethernet, PROFIBUS DP, etc.)
Article number 3BSE088385R1 (PM857K01)
Redundancy No
High Integrity Yes
Clock Frequency 96 Mhz
Performance, 1000 boolean operations   0.17 ms
Performance 0.17 ms
Memory 32 MB
RAM available for application 22.184 MB
Flash memory for storage No

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