ProSoft Technology MVI56E-GSC — Generic Serial Communication Module | ControlLogix Platform
Engineering Background
The MVI56E-GSC is ProSoft Technology’s purpose-built generic serial communication module for the Rockwell Automation ControlLogix backplane. Designed for industrial environments where legacy serial protocols must be integrated into modern PLC architectures, it eliminates the need for external protocol converters and reduces panel footprint while maintaining deterministic data exchange.
Product Positioning
Targeted at automation engineers who need to bridge RS-232, RS-422, or RS-485 serial devices — including barcode readers, weighing scales, SCADA RTUs, and third-party instrumentation — directly into a ControlLogix system without custom gateway hardware. The MVI56E-GSC is the preferred choice for OEM machine builders and system integrators requiring a proven, rack-mounted serial interface with full Ladder Logic configuration.
Complete Technical Specifications
- Part Number: MVI56E-GSC
- Manufacturer: ProSoft Technology
- Platform: Rockwell Automation ControlLogix (1756 series)
- Module Type: Generic Serial Communication Module
- Serial Ports: 2 × isolated serial ports (Port 0 & Port 1)
- Supported Interfaces: RS-232, RS-422, RS-485 (software selectable per port)
- Baud Rate: 110 bps – 115,200 bps
- Data Bits: 5, 6, 7, or 8
- Parity: None, Even, Odd, Mark, Space
- Stop Bits: 1 or 2
- Flow Control: RTS/CTS hardware handshaking; XON/XOFF software
- Backplane Interface: ControlLogix 1756 local or remote rack
- Backplane Current Draw: 800 mA @ 5 VDC (typical)
- Operating Temperature: 0°C to +60°C (32°F to 140°F)
- Storage Temperature: -40°C to +85°C
- Relative Humidity: 5% to 95% non-condensing
- Mounting: ControlLogix 1756 chassis slot (any slot)
- Weight: Approx. 260 g
- Certifications: UL Listed, CE Marked, RoHS Compliant
- Firmware: Field-upgradeable via ProSoft Configuration Builder (PCB)
- Configuration Tool: ProSoft Configuration Builder (PCB) — free download
Proven Application Environments
- Integrating legacy RS-232/485 instrumentation (flow meters, analyzers, scales) into ControlLogix systems
- Barcode scanner and RFID reader data acquisition on production lines
- Serial printer and label applicator control in packaging automation
- SCADA RTU polling over RS-485 multi-drop networks
- OEM machine builder panels requiring a compact, rack-native serial interface
- Retrofit projects replacing standalone serial-to-Ethernet converters
- Food & beverage, automotive, oil & gas, and water/wastewater plant automation
Engineering Advantages
- Dual isolated ports — independent RS-232/422/485 selection per port eliminates cross-talk and ground loop issues
- Backplane-native integration — data mapped directly to ControlLogix controller tags; no Ethernet latency or additional network infrastructure required
- Generic protocol flexibility — user-defined ASCII/binary framing supports virtually any serial device without proprietary driver constraints
- ProSoft Configuration Builder — intuitive Windows-based tool with built-in diagnostics, port monitoring, and firmware update capability
- Hot-swap compatible — supports ControlLogix chassis hot-swap for maintenance without system shutdown (chassis dependent)
- Compact form factor — single-slot 1756 module; minimizes rack space in space-constrained panels
System Architecture & Signal Flow
The MVI56E-GSC occupies one slot in a standard 1756 ControlLogix chassis. Each serial port connects to the target device via a DB-9 or terminal block adapter. The module’s internal processor handles all serial framing, buffering, and error detection autonomously, then exchanges structured data blocks with the ControlLogix controller via the backplane at the configured RPI (Requested Packet Interval). The controller Ladder Logic reads and writes data through mapped I/O tags — no explicit messaging required for basic operation. For advanced use cases, MSG instructions can be used to access extended configuration registers.
Signal path: Serial Device → MVI56E-GSC Port (RS-232/422/485) → Internal Buffer → Backplane Data Block → ControlLogix Controller Tags → Ladder/FBD/ST Logic
Sourcing & Quality Verification
- All units sourced through verified industrial automation supply channels
- Each module inspected for physical integrity, label authenticity, and firmware version prior to dispatch
- Original OEM packaging preserved where available; repackaged units clearly identified
- Batch traceability records maintained for B2B procurement compliance
- 30-day return window for DOA (Dead on Arrival) units with documented test evidence
Procurement Process
- Confirm part number MVI56E-GSC and required quantity with your engineering team
- Submit inquiry or place order directly via Konmask.com product page
- Receive order confirmation with lead time and shipping estimate within 1 business day
- Unit dispatched with packing list and inspection record
- Post-delivery technical support available via email or phone
Technical FAQ
Q: Is the MVI56E-GSC compatible with all ControlLogix chassis?
A: Yes — it fits any standard 1756 chassis (4, 7, 10, 13, or 17 slot) and is compatible with all current ControlLogix controllers (L6x, L7x, L8x series).
Q: Can both ports operate simultaneously with different baud rates?
A: Yes. Each port is independently configurable for interface type, baud rate, data format, and protocol framing.
Q: What is the maximum cable length for RS-485?
A: Up to 1,200 m (4,000 ft) at lower baud rates in a properly terminated RS-485 multi-drop network.
Q: Does this module require a separate power supply?
A: No. The MVI56E-GSC draws all operating power from the ControlLogix backplane (5 VDC, 800 mA typical).
Q: Is ProSoft Configuration Builder (PCB) included?
A: PCB is a free download from ProSoft Technology’s website. No additional software license is required.
Q: Can I use this module in a remote rack over ControlNet or EtherNet/IP?
A: Yes, the MVI56E-GSC can be installed in a remote 1756 chassis connected via a 1756-CN2 (ControlNet) or 1756-EN2T (EtherNet/IP) bridge module.
© 2026 Konmask.com. All rights reserved.
Original Source: https://Konmask.com
Contact: [email protected] | +0086 19859288691
