BACHMANN DPM200

Description

Material Composition

• Outer housing: Black extruded aluminum alloy heat dissipation shell with horizontal ventilation slits
• Backplane connector: Gold-plated phosphor bronze multi-pin edge connector
• Fieldbus communication circuit board: Industrial FR4 PCB with RS485 isolated transceivers
• Isolation components: 500 V withstand pulse transformers
• Front panel status indicator: High-brightness industrial LED light tubes
• Mounting fasteners: Stainless steel anti-corrosion rack locking screws

Structural Features

1. Standard single-width backplane plug-in module form factor for Bachmann M200 series controller racks
2. Front panel equipped with RUN, OF, BF, IF four independent diagnostic status LED indicators
3. Dual DB9 PROFIBUS DP communication ports (Port A / Port B) with internal signal bridge for bus cable loop-through wiring
4. Galvanic isolation partition separates backplane controller logic circuit and fieldbus RS485 signal circuit
5. Horizontal strip ventilation slits on upper and lower housing surfaces for passive convection heat dissipation
6. Rear gold-plated edge connector directly inserted into controller backplane bus slot without external wiring adapters

Technical Specifications

• Module Model: DPM200
• Manufacturer Origin: Bachmann Electronic GmbH, Austria
• Supported Bus Protocol: PROFIBUS DP, compliant with EN 50170 standard, RS485 physical layer
• Configurable Operation Modes: DP Master, DP Slave, Combined Master+Slave multi-master network mode
• Supported Baud Rate Range: 9.6 kbaud ~ 12 Mbaud full-range configurable
• Process Data Shared Memory Capacity: 8 kB bidirectional process image storage buffer
• Maximum Module Quantity Per M200 Controller Rack: 3 units of DPM200
• Galvanic Isolation Voltage (Backplane ↔ Fieldbus): 500 VAC dielectric withstand
• Number of PROFIBUS Network Nodes Supported (Master Mode): Up to 128 slave peripheral stations
• Operating Temperature Range: Standard version -30 ℃ ~ +60 ℃; cold climate variant -40 ℃ ~ +60 ℃
• Ambient Humidity Range: 5% ~ 95% RH, non-condensing
• Power Consumption Typical Value: 2.2 W
• Module External Dimension: 55 mm (W) × 60 mm (D) × 120 mm (H)
• Net Weight: 0.22 kg
• Certifications: CE, cULus, CCC; Marine classification certifications DNV, LR, ABS, BV, NK, RINA

Function Features

1. Flexible multi-mode operation switchable via Bachmann SolutionCenter engineering software without hardware modification
2. Dual DB9 ports with internal bridge simplifies PROFIBUS DP trunk cable loop-through wiring layout
3. Configurable data block consistency lock function ensures integrity of continuous process data transmission
4. Process data mapped directly to controller logic process image area for seamless access by user control program
5. Real-time bus fault diagnosis: bus short circuit, node communication loss, baud rate mismatch, signal isolation failure
6. Four front-panel LED indicators display module running state, bus fault, field communication break and internal interface abnormality
7. Full compatibility with all PROFIBUS DP standard peripheral devices: remote I/O modules, variable frequency drives, valve positioners, flow transmitters
8. Supports multi-master PROFIBUS network architecture; combined master-slave mode enables data exchange between multiple control racks
9. Software firmware upgrade via controller backplane bus without dismounting module from rack

Working Principle

After backplane power supply is applied, DPM200 module initializes internal PROFIBUS protocol stack according to mode configuration downloaded from SolutionCenter software. In Master mode, the module periodically sends polling frames to all configured DP slave nodes via RS485 dual DB9 ports, reads input process data and writes output control data to field peripherals, temporarily storing all exchanged data in the built-in 8 kB shared memory buffer. In Slave mode, the module responds to polling commands from external PROFIBUS DP master controllers and uploads local controller process data. Internal isolation transformers block common-mode voltage interference between industrial field bus cables and controller backplane logic circuit. Status monitoring chips continuously sample bus signal quality and module internal operating parameters, driving front-panel LED indicators to reflect fault and running states in real time. Passive aluminum housing dissipates heat generated by RS485 transceivers and protocol processing chips through horizontal ventilation slits.

Advantage Highlights

1. Dual-mode Master/Slave configurable design adapts to single-master and multi-master PROFIBUS network topologies
2. Ultra-wide -30 ℃ ~ +60 ℃ operating temperature range suitable for wind turbine, marine vessel and outdoor industrial control cabinets
3. Full marine classification certification supports shipboard offshore platform automation control systems
4. Dual-port loop-through function reduces PROFIBUS bus cable branching junction quantity and wiring failure risk
5. Large 8 kB process data buffer supports high-volume distributed I/O network data exchange without frame loss
6. Galvanic isolation between field bus and controller backplane eliminates ground loop induced module damage
7. Unified configuration tool integration with Bachmann SolutionCenter reduces engineering development workload

Applicable Industries

Onshore & offshore wind power generation, shipboard marine automation, port crane control, hydraulic machinery engineering, water treatment distributed control, metal smelting factory automation, building HVAC central control

Installation Requirements

1. Insert module into empty standard slot of Bachmann M1/M200 series controller backplane rack; fully engage rear edge connector with backplane bus gold pins
2. Tighten front panel locking screws with torque 0.5 N·m to prevent module vibration loosening during equipment operation
3. PROFIBUS DP communication cable must use shielded twisted-pair bus cable compliant with PROFIBUS standard; cable shield grounded at cabinet earth bar single-point
4. Maintain minimum 15 mm ventilation gap between adjacent modules in control rack for heat dissipation
5. Marine vessel installation must adopt IP54 minimum protection grade control cabinet to resist salt fog and condensate

Usage Precautions

1. Set correct terminal resistance via fieldbus peripheral terminal blocks at both physical ends of PROFIBUS trunk cable; missing terminal resistance causes signal reflection and communication failure
2. Complete bus topology and node address configuration via SolutionCenter software before powering up the control rack
3. Do not disconnect PROFIBUS DB9 connectors during continuous production operation; hot plugging damages RS485 transceiver chips
4. Execute firmware version synchronization between multiple DPM200 modules in the same rack every maintenance cycle
5. Avoid installing the module adjacent to high-power frequency drive power supply modules to prevent electromagnetic signal interference
6. For cold climate outdoor cabinet application, install auxiliary cabinet heating equipment to maintain internal temperature above -30 ℃ operating lower limit