Overview
Configured for controller execution and application processing in the AC 800M Control Network, the ABB PM858K01 (PM858K01 Processor Unit) provides direct physical and electrical execution for PLC and DCS control tasks. The module integrates CPU processing, memory management, Ethernet communication, and Modulebus control functions.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | PM858K01 |
| Brand | ABB |
| Origin | Not specified in provided data |
| Product Type | AC 800M Processor Unit |
| Processor Type | MPC866 |
| Clock Frequency | 33 MHz |
| Performance | 0.36 ms per 1000 boolean operations |
| Memory | 16 MB |
| RAM Available for Application | 7.147 MB |
| Flash Memory for Storage | Yes |
| Firmware Storage | 4 MB Flash PROM |
| Redundancy | No |
| High Integrity | No |
| Power Supply | 24 VDC (19.2 to 30 VDC) |
| Power Consumption | 210 mA typical, 360 mA maximum at +24 VDC |
| Power Dissipation | 5.1 W typical, 8.6 W maximum |
| Weight | 1200 g (including base) |
| Dimensions | 119 mm W x 186 mm H x 135 mm D |
| Operating Temp | 0 to +55 deg C |
| Storage Temp | -40 to +70 deg C |
| Ethernet Interface | 2 channels, IEEE 802.3, 10 Mbit/s, RJ-45 |
| RS-232C Interface | 2 ports |
| Control Network Protocol | MMS and IAC |
| Modulebus Capacity | Maximum 96 I/O modules with single PM866 configuration |
| CEX Bus Modules | Maximum 12 communication modules |
| Protection Class | IP20 according to EN 60529 |
| Certification | CE, ISA Secure, cULus Class 1 Zone 2, DNV-GL |
Industrial Control Network and Firmware Compatibility
The PM858K01 processor unit uses ABB AC 800M controller architecture for deterministic PLC and DCS execution. Moreover, the MPC866 processor manages application programs, tasks, and communication services through the controller firmware environment.
The unit supports up to 32 applications per controller, with each application supporting up to 64 programs and 128 diagrams. In addition, the controller provides 32 task configurations and 32 selectable cycle times. Application program cycle execution can reach down to 1 ms depending on configuration.
The processor supports Ethernet-based control communication through IEEE 802.3 interfaces. Furthermore, the Control Network uses MMS and IAC protocols for controller communication and application-level data exchange. The module also supports firmware storage through a 4 MB Flash PROM.
Frequently Asked Questions
Q: Does the PM858K01 support redundant processor configuration?
A: No. The PM858K01 is specified as a non-redundant processor unit and does not provide redundant CPU operation.
Q: What communication interfaces are available on the PM858K01?
A: The processor provides two Ethernet channels and two RS-232C interfaces. The Ethernet ports use RJ-45 connectors and support IEEE 802.3 communication at 10 Mbit/s.
Q: What is the maximum Modulebus I/O capacity of the PM858K01?
A: The controller supports up to 96 I/O modules on Modulebus with a single processor configuration according to the provided specifications.
Field Installation Guidelines
Install the PM858K01 on the designated AC 800M controller mounting base and verify mechanical engagement before applying power. Connect the 24 VDC supply within the specified voltage range and confirm correct polarity.
Maintain separation between communication wiring and high-current power cables to reduce electrical interference. Connect Ethernet and RS-232C communication cables according to the controller network design and use appropriate grounding methods for industrial environments.
Before commissioning, verify firmware compatibility, controller configuration parameters, and connected Modulebus I/O addressing. Check environmental conditions including temperature, humidity, vibration, and pollution level against the installation requirements.
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Contact: Manski Wong +86 18030205725 manski@cambia.cn
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