Description
Core Product Summary
The Bachmann DPM200 is an industrial PROFIBUS DP interface module designed for integration into the Bachmann M1 control system architecture. Operating as a DP Master, DP Slave, or combined master/slave unit, it enables structured communication between the central controller and decentralized field devices.
Engineered to support transmission rates from 9.6 Kbaud up to 12 Mbaud, the module incorporates 8 kB of shared memory for handling process data images efficiently. It features galvanic isolation to decouple the fieldbus lines from the internal system bus, safeguarding processing logic from potential high-voltage transients or ground loops in field wiring.
Key Technical Specifications
| Parameter | Specification |
| Manufacturer | Bachmann electronic GmbH |
| Model / Order Code | DPM200 (Item No. 00010555-00) |
| Product Type | PROFIBUS DP Fieldbus Interface Module |
| Supported Protocols | PROFIBUS DP (DP Master / DP Slave / Combined) |
| Transfer Rate | 9.6 Kbaud to 12 Mbaud |
| Shared Memory | 8 kB for process data image |
| Data Consistency | Configurable consistency lock for data blocks |
| System Capacity | Up to 3 DPM200 modules per controller |
| Electrical Isolation | Galvanic isolation between fieldbus and controller |
| Physical Interfacing | Two internal bridged connections for loop-through cabling |
Detailed Product Overview
The Bachmann DPM200 module acts as a communication bridge within the M1 automation platform, enabling high-speed fieldbus data exchanges. By offloading PROFIBUS protocol processing from the main controller CPU, the module ensures deterministic cycle times for high-density automation systems, energy management networks, and marine control structures.
With support for data transfer rates up to 12 Mbaud, the unit interfaces seamlessly with standard PROFIBUS I/O drops, variable frequency drives, and intelligent field transmitters. The integrated 8 kB shared memory block facilitates rapid cyclic data exchange between the field network and the controller’s runtime environment. Configurable data block consistency locks ensure that multi-byte process variables remain structurally synchronized during write and read cycles.
For simplified field installation, the DPM200 features two internal bridged network connections, allowing line-topology daisy chaining directly at the module without requiring external T-connectors or signal splitters.
Dimensions, Mounting & Connection Notes
- Mounting Method: Inserts directly into dedicated module slots on standard Bachmann M1 system backplanes.
- Cabling Layout: The dual internal bridged connections enable daisy-chained bus topology without specialized external branching hardware.
- Electrical Safety: Galvanic isolation between fieldbus lines and system backplane electronics protects the controller logic from field-side electrical interference.
DPM200
DPM200
System Compatibility & Integration Requirements
| Item / Dependency | Verified Compatibility or Requirement | Practical Note |
| System Architecture | Bachmann M1 Automation System / M200 Controller Series | Plugs directly into standard M1/M200 backplane rack slots. |
| Module Limit | Maximum 3 DPM200 modules per controller | Allows multi-channel PROFIBUS master configurations within a single rack. |
| Network Bus | PROFIBUS DP standard cabling & termination | Bridged connections permit loop-through cable topology. |
FAQ
What is the function of the Bachmann DPM200?
The Bachmann DPM200 is a PROFIBUS DP interface module that enables Bachmann M1 controllers to communicate with fieldbus devices as a master, slave, or combined node.
What transmission speeds does the DPM200 support?
The module supports configurable PROFIBUS transmission speeds ranging from 9.6 Kbaud to 12 Mbaud.
How many DPM200 modules can be installed in a single controller setup?
Up to 3 DPM200 modules can be operated simultaneously in a single controller system.
Does the DPM200 provide electrical isolation?
Yes, the module incorporates galvanic isolation between the fieldbus connections and the internal controller electronics.
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