Description
Note: Many products are not yet listed. Please contact us for more product information. Our supply channels are constantly expanding, and we currently have 20 stable shared supply channels. Please confirm the model, product, price, and all other necessary information with customer service before placing an order. We offer new, refurbished, and used products, and prices are adjusted according to the year of the item you require.
Key Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | MVI56-PDPS |
| Chassis Compatibility | Rockwell 1756 ControlLogix single slot |
| PROFIBUS Standard | PROFIBUS DP V0 Slave |
| Max Cyclic Data | 244 bytes input, 244 bytes output; 400 bytes combined limit |
| Baud Rate Range | 9.6 kbps up to 12 Mbps, auto-baud detection |
| Backplane Draw | 800 mA @ 5 VDC |
| Local Database | 400 configurable register words |
| PROFIBUS Connector | DB9 female port |
| Configuration Port | RS232 serial for PC setup and diagnostics |
| Operating Temperature | 0°C to +60°C |
| Humidity | 5% to 95% RH, non-condensing |
| Shock / Vibration | 30g operational shock, 5g vibration 10–150 Hz |
| Included Files | GSD file, sample ladder logic, Add-On Instructions |
Product Introduction
ProSoft MVI56-PDPS is an in-chassis communication module for ControlLogix controllers. It makes the ControlLogix PAC appear as a PROFIBUS DP slave to any PROFIBUS DP master device, translating cyclic I/O data between the Rockwell backplane and PROFIBUS fieldbus.
The module uses user-defined memory mapping to move discrete and analog values between the ControlLogix tag database and the PROFIBUS master. It includes status LEDs and serial diagnostics for troubleshooting bus faults, dropped connections, and data mapping errors.

MVI56-PDPS

MVI56-PDPS

MVI56-PDPS

MVI56-PDPS

MVI56-PDPS
Application Scenarios & Field Experience
Part 1 (Narrative Paragraph)
Mixed vendor automation lines often pair Rockwell ControlLogix with PROFIBUS DP master controllers. Without a dedicated gateway, engineers face costly custom protocol converters and extra enclosures. The MVI56-PDPS fits directly in the existing 1756 rack and presents the ControlLogix as a native DP slave, eliminating external gateway hardware.
Part 2 (Numbered List)
- Pulp & paper machine retrofits: Integrate ControlLogix into existing PROFIBUS DP master-based paper machine drive systems.
- Automotive assembly lines: Connect Rockwell safety and logic controllers to legacy PROFIBUS DP master drive controls on transfer conveyors.
- Water treatment plant upgrades: Add ControlLogix SCADA logic to PROFIBUS DP master managed valve and pump networks.
- Metal rolling mill controls: Exchange cyclic setpoint and feedback data between ControlLogix and PROFIBUS master drive controllers.
Part 3 (Short Field Story)
A paper mill upgraded their local logic to ControlLogix while keeping the existing PROFIBUS DP master drive system. The old external serial gateway had periodic bus timeouts that triggered speed trips. After installing a tested MVI56-PDPS inside the ControlLogix rack, cyclic data stayed synchronized. The maintenance team removed the external gateway and eliminated the intermittent trip condition.
Standard Operating Procedure (SOP) for Quality Control
- Visual & Origin Inspection: Inspect PCB, backplane edge connector, DB9 port, OEM labeling and serial numbers. Check casing for damage and validate OEM markings for counterfeit screening.
- Live Rig Testing: Insert module in 1756 test rack, power chassis, verify backplane recognition and status LED boot sequence. Establish PROFIBUS DP slave connection to a DP master simulator.
- Firmware Verification: Read and record module firmware revision. Attach firmware version to test report for compatibility review.
- Cyclic Data Functional Test: Transfer simulated input/output cyclic data, validate data mapping, and test link-loss fault behavior.
- ESD-Safe Packaging: Seal module inside static shielding bag, add foam cushioning inside rigid carton. Include signed QC test certificate with shipment.
Frequently Asked Questions (FAQ)
Q1: What ControlLogix firmware and software versions work with MVI56-PDPS? A: It works with RSLogix 5000 compatible ControlLogix processors. Confirm your controller firmware, AOI version and GSD file match your PROFIBUS DP master configuration before ordering. It supports DP V0 only, no DPV1 acyclic services.
Q2: What warranty is included for this module? A: We offer a 12-month warranty. Warranty covers hardware defects. It does not cover damage from ESD, miswired PROFIBUS bus, incorrect termination, or corrupted configuration downloads.
Q3: Do you hold stock of MVI56-PDPS and what is the shipping timeline? A: We maintain limited inventory of new surplus and refurbished units. Most fully tested units ship within 1–3 business days after QC approval. Confirm stock status through our website before procurement.
Q4: Can firmware mismatches cause PROFIBUS cyclic data corruption? A: Yes. Mismatched module firmware can trigger intermittent I/O flicker, bus dropouts or incorrect data word swapping. We supply firmware revision records for each shipped unit for your controls team review.
Q5: Can I hot-swap this module while the ControlLogix rack stays powered? A: Do not hot-swap in a live production rack. Removing the module under power breaks PROFIBUS cyclic communication and can trigger downstream drive or process trips. Shut down rack power before replacement.
