ABB CM592-DP PROFIBUS DP Master Communication Module
An active AC500 communication module for coordinating PROFIBUS DP slaves with deterministic cyclic data and DP-V1 acyclic services.
Product Overview
CM592-DP is the master-side PROFIBUS communication module for supported ABB AC500 processor systems. It combines a netX communication processor with a potential-free RS-485 bus interface and dedicated exchange memory, allowing the controller application to supervise a substantial field-device network.
Performance
- Supports PROFIBUS DP-V0 cyclic communication and DP-V1 acyclic services from the network-master role.
- Provides independently sized input and output process-image resources for multi-device systems.
- Offers automatic transfer-rate selection across the documented PROFIBUS range.
- Uses local status indicators to separate module readiness, bus operation and error conditions.
- Keeps fieldbus processing in dedicated communication hardware linked to the AC500 application.
Technical Details
| Manufacturer | ABB |
|---|---|
| Article Number | 1SAP173200R0001 |
| Product Family | AC500 |
| Network Role | PROFIBUS DP-V0/DP-V1 master |
| Bus Interface | Potential-free EIA RS-485 |
| Connector | 9-pin female D-sub |
| Transfer Rate | 9.6 kbit/s to 12 Mbit/s |
| Communication Processor | Hilscher netX 100 |
| Communication Interface | 16 kB dual-port RAM |
| Maximum Slaves | 125 |
| Total Cyclic Input Data | 5712 bytes |
| Total Cyclic Output Data | 5760 bytes |
| Cyclic Data per Slave | Up to 244 bytes input and 244 bytes output |
| Acyclic Data per Telegram | Up to 240 bytes per slave |
| Typical Current Consumption | 65 mA |
| Product Lifecycle | Active |
System Integration
- Use a supported AC500 processor and terminal base, then import the correct device description files for all connected slaves.
- Build a linear PROFIBUS segment with correct connectors, shielding and termination at both active ends.
- Assign unique station addresses before activating the complete network.
- Map cyclic data deliberately and reserve acyclic access for diagnostics or parameter services.
- After replacement, compare bus diagnostics and every process-data area with the approved project.
Applications
- Central master communication for distributed drives, I/O stations and instrumentation on PROFIBUS DP.
- Modernization work that retains a proven PROFIBUS field layer under an AC500 controller.
- Machine cells requiring both cyclic process exchange and DP-V1 maintenance access.
- Service replacement where the original station addresses and process map must be preserved.
- Expansion of an existing AC500 network within the documented slave and data capacities.
FAQ
Which PROFIBUS role does CM592-DP perform?
It is the DP master; slave-side ABB modules are different products.
How many DP slaves can the module coordinate?
ABB specifies a maximum of 125 slaves, subject to project data and cycle requirements.
What must be checked before changing the bus rate?
Confirm that every node, cable segment and connector supports the selected PROFIBUS rate.
Which data should be backed up before replacement?
Preserve the controller project, station addresses, GSD selections and process-data mapping.
Why are end terminations important on this module?
The RS-485 line requires correct termination at the two active physical ends to maintain signal integrity.
Can DP-V1 parameter services be used?
Yes. The master supports acyclic services within the documented per-telegram limits.
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