The CPU board contains the microprocessor and RAM memory, real-time clock, LED indicators, INIT button, and CompactFlash interface.
The PM866 / PM866A controller’s backplane has two RJ45 Ethernet ports (CN1. CN2) for connection to the control network and two RJ45 serial ports (COM3. COM4).
used to connect 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.
The other port (COM4) is isolated for connecting configuration tools.
The controller supports CPU redundancy for increased availability www.abb-drive.com (CPU, CEX-Bus, communication interfaces and S800 I/O).
Easy DIN rail mounting/dismounting procedure using a unique sliding and locking mechanism.
All baseboards have a unique Ethernet address that provides hardware identification for each CPU.
This address can be found on the Ethernet address label on the TP830 backplane.
Features and Benefits
ISA safety certified – learn more
Reliability and simple troubleshooting procedures
Modular and incrementally expandable
IP20 rated protection, no enclosure required
Controller can be configured with 800xA control generator
Controller is fully EMC certified
Segmented CEX buses using a pair of BC810 / BC820
Hardware based on the best communication connection standards (Ethernet, PROFIBUS DP, etc.)
Built-in redundant Ethernet communication ports
General information
Article number: 3BSE076939R1 (PM866AK01)
Redundancy: no
High integrity: None
Clock frequency: 133 MHz
Performance, 1000 Boolean operations: 0.09 ms
Performance: 0.09 ms
Memory: 64 MB
Application memory available: 51.389 MB
Flash memory for storage: Yes
Detailed Data
Processor Model MPC866
Red switching time 10 ms maximum
Number of applications per controller 32
Number of programmes per application 64
Number of charts per application 128
Number of tasks per controller 32
Number of different cycle times 32
Cycle time per application As low as 1 ms
Flash PROM for firmware storage 4 MB
Power supply 24 V DC (19.2-30 V DC)
Power consumption +24 V typ/max 210 / 360 mA
Power dissipation 5.1 W (8.6 W max)
Redundant power status inputs Yes
Built-in lithium battery backup, 3.6 V
Clock synchronisation of 1 ms between AC 800M controllers via CNCP protocol
Event queue up to 3000 events per OPC client controller
Transmission speed from AC 800M to OPC server 36-86 events/sec, 113-143 data messages/sec
Communication modules on the CEX bus
Supply current on the CEX bus max. 2.4 A
I/O cluster on non-red module bus CPU 1 power + 7 light
I/O cluster on module bus, red CPU 0 electrical + 7 light
I/O capacity on module bus Maximum 96 (single PM866) or 84 (red PM866) I/O modules
Module bus scan rate 0 – 100 ms (actual time depends on number of I/O modules)
Supply current on electrical module bus
24 V: 1.0 A max.
5 V: max. 1.5 A
Ethernet channel 2
Ethernet interface Ethernet (IEEE 802.3), 10 Mbit/s, RJ-45. female (8-pole)
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