The Central Processing Unit (CPU) module is equipped with a high-performance processor for fast loop cycle times. It comes with on-board 100 Mbit/s Ethernet network connection used for communication between controllers, operator stations and engineering tool. Two serial line interfaces complete the connectivity. One interface can be used for Modbus communication, while the other is used for diagnostics. The CPU has 10 MB of memory of which 2 MB are battery backed up. For demanding applications, eight cyclic and priority driven tasks with adjustable cycle time can be configured, as well as a cyclic PLC type task which runs as fast as possible. The small front panel display shows status and diagnostic information directly at the module. Furthermore you can lock the controller via the keys. This means the controller can be blocked for downloads of application and firmware to enhance security. The status, if the controller is locked or unlocked, is shown on the display. S700 I/O modules can be directly plugged to the CPU module or can be used as remote I/O via PROFIBUS. A maximum of eight modules can be connected to one controller. 3rd party I/O‘s can be connected via a MODBUS ASCII / RTU, IEC 60870-5-101 Telecontrol protocol or via PROFIBUS. The CPU and the local S700 I/O modules communicate very fast. I/O scan times of 2 ms are possible. Short circuit and line break detection is realized for each channel.
CB801 Profibus DP Communication Interface
Profibus DP slave expansion module for Panel 800.
Some of the benefits of the AC 800M Controller are:
• Flexibility, the AC 800M Controller can be ordered as individual units which
may be mounted in accordance with the customers own requirements.
• Extremely small footprint.
• Simple DIN rail attachment / detachment procedures, using the unique slide
& lock mechanism.
• Modularity, allowing for step-by-step expansion. You only pay for what you
require at the present time.
• Reliability and simple fault diagnosis procedures.
• Controller redundancy for higher availability (CPU, CEX-Bus, communication
interfaces, S800 I/O).
• Built-in redundant Ethernet Communication ports.
• Built-in RS-232C communication ports.
• Low power consumption, thus no external fans required.
• Flexible process connection, using either local I/O or standard fieldbuses.
• S800 I/O redundancy.
• Supports S800 I/O High Integrity (with PM858, PM862, PM865, PM866A,
PM867 and PM891).
The major features of the AC 800M are:
• High performance and large application memory.
• Extensive availability.
• CPU redundancy
(PM858/PM861/PM862/PM864/PM865/PM866/PM867/PM891).
• AC 800M High Safety Integrity Level 2 certified using PM865/SM810/SM811
or PM867/SM812.
• AC 800M High Safety Integrity Level 3 certified using PM865/SM811 or
PM867/SM812.
• Built-in redundant Ethernet channels.
• Built-in RS-232C channels.
• Sectioned CEX-Bus using a pair of BC810 / BC820.
• Quick and simple fault-finding with the aid of LEDs on each unit / channel.
• Built-in battery back-up of memory (except for PM891).
• External battery back-up.
• Use of industry standard power supply voltage – 24V d.c.
• Easy mounting on standard DIN rail.
• IP20 Class protection without the requirement for enclosures.
• Incorporation of a wide variety of communication possibilities.
• Hardware based on standards for optimum communication connectivity
(Ethernet, PROFIBUS DP).
• Support for PROFIBUS DP fieldbus.
• Support for FOUNDATION Fieldbus.
• Support for Advant Fieldbus 100.
• Support for Modbus TCP
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| PCD530A102 3BHE041343R0102 |
| PCD244A101 |
| PCD237A101 3BHE028915R0101 |
| PCD235B1101 3BHE032025R1101 |
| PCD231B101 3BHE025541R0101 |
| PCD230A101 3BHE022291R0101 |
| PCD235A101 3BHE032025R0101 |
| PCD235B101 3BHE032025R0101 |
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