Description
‑ Power Supply：24VDC，operating range 19.2‑30VDC；typical power consumption 5.1W, max load 8.6W
‑ Mechanical Structure：DIN‑rail slide‑lock complete kit (CPU+TP830 baseplate+accessories)；overall weight approx 1.35kg
‑ On‑board Resources：MPC866 133MHz 32‑bit processor；51.389MB available application RAM；4MB Flash firmware storage；CompactFlash card slot；dual‑level hardware watchdog circuit；3.6V lithium battery for real‑time clock and retention data；comprehensive hardware self‑diagnosis circuit
‑ Communication Interface：internal CEX bus for S800 I/O modules；dual 10/100M RJ45 ethernet ports；COM3 RS232 port；COM4 galvanic‑isolated RS232 configuration service port；RCU‑link redundancy interface
‑ Galvanic Isolation：serial communication channels adopt galvanic isolation, isolation rating 2500VAC
‑ Core Function：execute complex control logic, high‑speed PID loop adjustment, interlock & sequence/batch control, dual‑ethernet redundant network communication, CompactFlash program backup, hardware watchdog, comprehensive hardware self‑diagnosis, support CPU main‑standby hot‑standby redundancy
‑ Protection：surge‑suppression and ESD protection for communication ports, reverse‑polarity power‑supply protection
‑ Status LED Indicators：PWR power indicator, RUN running status, ERR fault alarm, COM bus status, ETH network status LED, INIT reset button
‑ Weight：approx 1.35kg
‑ PM866AK01 is full delivery kit, contains CPU board, TP830 baseplate, two bus terminators, backup battery and power plug, ready‑for‑DIN‑rail installation. Exchanges data with S800 I/O modules over internal CEX back‑plane bus. Single station can run one PM866AK01 as standalone controller; two PM866AK01 can build main‑standby redundant control system with RCU‑link cable, realize bumpless switchover upon main CPU fault.
‑ Supports IEC61131‑3 standard programming languages FBD, LD, ST, SFC. Completes complex continuous PID regulation, cascade control, split‑range control, safety interlock protection, sequential logic and large‑batch process control. Dual ethernet ports support network redundancy, connect 800xA operator station and engineering station. COM3 RS232 port used for modem connection; COM4 isolated RS232 port for local program download, debugging and third‑party serial device communication. CompactFlash card realizes program backup, restore and firmware upgrade. On‑board lithium battery keeps real‑time clock and retention process variables after power‑off. Dual‑level hardware watchdog realizes automatic reset when program runs abnormally.
‑ Module self‑diagnosis continuously monitors 24V power supply, CPU operation, memory fault, CEX bus and communication channel abnormality; fault codes and alarm messages are uploaded to 800xA operator workstation.
‑ Cannot run independently; kit already includes matched TP830 baseplate and accessories.
Difference compared with PM866A‑2：PM866A‑2 is bare CPU board only; PM866AK01 is complete order kit with baseplate, terminators, battery and power connector, identical CPU hardware performance.Compare with PM864AK01‑eA：uses TP830 baseplate instead of TP850, supports CPU main‑standby redundancy, non‑SIL safety grade controller.
‑ Continuously monitors power supply, memory, CEX back‑plane bus and each communication channel status. Hardware fault will light front‑panel ERR fault LED and report fault alarm code to operator station.
‑ No local historical‑data storage; runtime status and fault diagnosis information are read via Control Builder M engineering tool.
‑ CPU hardware failure will lead to control station out‑of‑service; under redundant configuration, standby processor will automatically take over control task without production interruption.
‑ Back‑plane：CEX bus connector on TP830 baseplate, connect I/O bus and 24VDC power supply.
‑ External interfaces：dual RJ45 ethernet ports, COM3 RS232 port, COM4 isolated RS232 port, CompactFlash card slot, INIT reset button, RCU‑link redundancy interface.
‑ Mounting：DIN‑rail installation
‑ Operating Temperature：0 ℃ ~ +55 ℃
‑ Storage Temperature：‑40 ℃ ~ +70 ℃
‑ Relative Humidity：5‑95 %RH, non‑condensing
‑ Pollution degree：Degree 2
‑ Protection Class：IP20, cabinet‑internal installation.
- PM866AK01 complete processor kit（3BSE076939R1）
Complementary parts: 24VDC power supply, S800 series I/O modules, CompactFlash memory card, RCU‑link cable( for redundancy), industrial shielded ethernet cables, Control Builder M engineering & 800xA monitoring software.
‑ Cut off power before inserting or replacing PM866AK01 CPU module, hot‑swap function is not supported. Kit is pre‑equipped with TP830 baseplate, bus terminators and backup battery. When deploying redundant CPU, use special RCU‑link cable and follow redundancy configuration rules. Use industrial shielded cables for ethernet and serial wiring. Pay attention to lithium‑battery ageing, replace battery periodically to avoid loss of clock and retention data.
‑ For spare‑part replacement: verify full model PM866AK01 and part‑number 3BSE076939R1; after hardware installation download firmware and user control program, verify logic operation, PID loop regulation and all communication channel data interaction. Wrong baseplate or incompatible firmware version will cause station startup failure.
‑ Single CPU fault will result in control station stop; redundant configuration can avoid production interruption.
Power plant, petrochemical, paper‑making industry AC800M Compact DCS control cabinets; medium‑large‑size process control station complete processor kit; industrial spare‑part for AC800M Compact DCS high‑end CPU unit.
- ABB AC800M Compact high‑performance PM866AK01 complete processor kit (3BSE076939R1), kit includes CPU board, TP830 baseplate, terminators and battery, 51.389MB available application RAM, CompactFlash card slot for program backup.
- MPC866 133MHz 32‑bit processor, dual ethernet support network redundancy, dual RS232 interfaces, CEX high‑speed I/O back‑plane bus, equipped with RCU‑link redundancy interface.
- Supports CPU main‑standby hot‑standby redundancy, realizes bumpless switchover for high‑reliability large‑scale process occasions.
- DIN‑rail slide‑lock structure, does not support hot‑swap, power‑off required for replacement; must adopt TP830 baseplate, cannot use TP850 baseplate.
- Fully complies with IEC61131‑3 standard, completes complex PID, interlock, sequence and batch control tasks, non‑SIL safety controller.
- Mature discontinued DCS spare‑part, only applied for old‑system maintenance and retrofit projects。
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