ProSoft MVI56-CSC Isolated Digital Input Module | Replacement, Equivalent & Selection Guide
The ProSoft MVI56-CSC is an isolated digital input module designed for the Allen-Bradley ControlLogix platform. It provides galvanically isolated digital input channels, protecting your PLC backplane from field-side voltage transients and ground loops — a critical requirement in industrial environments with high electrical noise. This page serves as a comprehensive selection, replacement, and compatibility reference for engineers and procurement teams sourcing the MVI56-CSC or evaluating equivalent alternatives.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | MVI56-CSC |
| Manufacturer | ProSoft Technology |
| Platform | Allen-Bradley ControlLogix (1756 series) |
| Module Type | Isolated Digital Input / Communication Module |
| Isolation | Galvanic isolation between field and backplane |
| Backplane Interface | ControlLogix 1756 backplane |
| Power Consumption | Refer to ProSoft MVI56-CSC datasheet |
| Operating Temperature | 0 °C to 60 °C |
| Weight | Approx. 230 g |
| Certifications | CE, UL (verify current listing with ProSoft) |
| Firmware | Configurable via ProSoft Configuration Builder (PCB) |
Compatible Replacement & Equivalent Models
When the MVI56-CSC is discontinued, on extended lead time, or outside budget, the following models are commonly evaluated as replacements or equivalents. Always verify electrical and functional compatibility before substitution.
| Model | Manufacturer | Notes |
|---|---|---|
| MVI56E-CSC | ProSoft Technology | Enhanced version; direct functional upgrade, same platform |
| 1756-IA16I | Allen-Bradley / Rockwell | Native isolated AC input module; different protocol, no PCB config |
| 1756-IB16I | Allen-Bradley / Rockwell | Native isolated DC input; evaluate channel count and voltage range |
| MVI56-MNET | ProSoft Technology | Different function (Modbus TCP); listed for reference only |
| Custom 3rd-party isolated I/O | Various | Contact Konmask for cross-reference assistance |
Note: Konmask.com provides cross-reference guidance. Final compatibility verification is the responsibility of the system integrator.
Why Choose the Original MVI56-CSC
- Proven isolation performance — galvanic isolation eliminates ground loop interference in noisy plant environments.
- Native ControlLogix integration — seamless backplane communication with no gateway hardware required.
- ProSoft Configuration Builder (PCB) — free, dedicated configuration software with diagnostic tools.
- Long field service record — widely deployed in oil & gas, water treatment, and discrete manufacturing.
- Rockwell Automation ecosystem compatibility — works within Studio 5000 / RSLogix 5000 project architecture.
Typical Applications
- Isolated digital signal acquisition in high-noise industrial environments
- Oil & gas field instrumentation interfacing
- Water and wastewater treatment plant control systems
- Power generation and distribution monitoring
- Discrete manufacturing lines with variable-frequency drives (VFDs)
- Building automation and HVAC control panels
System Compatibility
- PLC Platform: Allen-Bradley ControlLogix 1756 series (all chassis sizes)
- Software: Studio 5000 Logix Designer, RSLogix 5000, ProSoft Configuration Builder
- Chassis: 1756-A4, 1756-A7, 1756-A10, 1756-A13, 1756-A17 and compatible variants
- Power Supplies: Standard 1756-series power supplies (1756-PA72, 1756-PB72, etc.)
- Not compatible with: CompactLogix (1769), MicroLogix, or SLC 500 platforms without additional hardware
Selection Guide
Use the following criteria to determine whether the MVI56-CSC is the right module for your application:
- Do you need galvanic isolation? → Yes: MVI56-CSC is appropriate. No: consider standard 1756-IB series.
- Platform: ControlLogix 1756 only. For CompactLogix, evaluate MVI69 series.
- Channel count: Confirm required input channel count matches module specification.
- Voltage range: Verify field-side voltage compatibility (AC vs DC, voltage level).
- Budget vs. lead time: MVI56E-CSC (enhanced) may offer better long-term support; contact us for pricing comparison.
- Replacement urgency: Konmask maintains stock of new, surplus, and tested-used units — contact us for availability.
Quality Assurance & Sourcing
- All MVI56-CSC units sourced through Konmask.com are inspected prior to shipment.
- New, surplus-new, and tested-used conditions available — clearly labeled on each listing.
- Traceability documentation available upon request for critical applications.
- Units shipped with anti-static packaging and protective foam inserts.
- 30-day return policy on stocked items (subject to condition verification).
How to Order
- Confirm part number: MVI56-CSC (ProSoft Technology)
- Specify required condition: New / Surplus-New / Tested-Used
- Add to cart or contact us directly for bulk pricing and lead time.
- For urgent requirements, email support@konmask.com or call +0086 19859288691.
- International shipping available — DHL, FedEx, UPS options at checkout.
Replacement & Compatibility FAQ
Q: Is the MVI56E-CSC a direct drop-in replacement for the MVI56-CSC?
A: Functionally yes in most cases, but verify firmware version and PCB configuration compatibility before swapping in a live system.
Q: Can the MVI56-CSC be used in a CompactLogix system?
A: No. The MVI56-CSC is designed exclusively for the ControlLogix 1756 backplane. For CompactLogix, evaluate the MVI69 product family.
Q: Do you provide configuration files or ladder logic samples?
A: Yes — contact our technical team at support@konmask.com and we will share available sample code and configuration templates.
Q: What is the lead time for a new MVI56-CSC?
A: Lead times vary. Konmask typically maintains stock for immediate shipment. Contact us for real-time availability.
Q: Is the MVI56-CSC RoHS compliant?
A: Verify current RoHS status directly with ProSoft Technology or request documentation from Konmask at time of order.
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Original Source: https://Konmask.com
Contact: support@konmask.com | +0086 19859288691
