Overview
Configured for central processing and control logic execution in ABB automation controller platforms, the ABB PM856AK01 (PM856A Central Unit) provides direct physical and electrical execution through processor, memory, and bus communication functions.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | PM856AK01 |
| Brand | ABB |
| Product Type | Central Unit |
| Origin | Sweden |
| Processor Frequency | 24 MHz |
| Memory | 16 MB |
| Weight | 1.1 kg |
| Dimensions | 155 mm depth x 200 mm height x 130 mm width |
| Operating Temp | Not specified |
| Power Consumption | Not specified |
| Package Contents | PM856A CPU, TP830 Baseplate, TB850 CEX-bus terminator, TB807 ModuleBus terminator, Battery for memory backup (4943013-6) |
| Redundancy | Not specified |
| Battery Type | Lithium portable battery |
| Battery Quantity | 1 |
| Battery Weight | 9 g |
| Storage Support | Memory backup battery included |
| HS Code | 85371091 |
| RoHS Compliance | EU Directive 2011/65/EU |
Firmware Flash Compatibility and Industrial Bus Processing
The PM856AK01 uses the PM856A processor architecture for execution of controller application tasks and communication handling through the ABB controller backplane environment. The included TP830 baseplate and bus termination components support physical integration with CEX-bus and ModuleBus connections.
The processor module manages application memory execution, internal data handling, and communication synchronization between connected control modules. Firmware compatibility shall be verified against the installed ABB controller platform version before replacement or upgrade activities.
Frequently Asked Questions (FAQ)
Q: What components are included with the PM856AK01 package?
A: The package includes the PM856A CPU module, TP830 baseplate, TB850 CEX-bus terminator, TB807 ModuleBus terminator, and a lithium battery for memory backup. No license is included.
Q: Does the PM856AK01 support redundant processor operation?
A: The provided technical data does not specify redundant processor capability. The installed controller configuration must be checked for redundancy requirements.
Q: What is the function of the included battery?
A: The lithium battery provides memory backup support for retaining stored controller data during power interruption conditions.
Field Installation Guidelines
- Install the PM856AK01 module on the specified TP830 baseplate and verify mechanical locking before energizing the system.
- Confirm correct installation of the TB850 CEX-bus terminator and TB807 ModuleBus terminator according to the controller hardware configuration.
- Maintain proper grounding and shielding practices for connected control wiring and communication interfaces.
- Separate signal wiring from high-voltage power cables to reduce electromagnetic interference.
- Verify controller firmware compatibility and application configuration before replacing an existing processor module.
- Handle the lithium battery according to applicable industrial and transportation requirements.
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