ProSoft MVI46-GSC – Generic Serial Communication Module | SLC 500 Platform
Engineering Background: The MVI46-GSC is ProSoft Technology’s purpose-built generic serial communication module for the Allen-Bradley SLC 500 rack architecture. Designed for applications where standard Ethernet or fieldbus protocols are unavailable or impractical, it provides a flexible, configurable serial bridge that integrates legacy instruments, barcode readers, weigh scales, SCADA RTUs, and third-party serial devices directly into the SLC 500 backplane data table.
Product Positioning: As a rack-mounted pass-through and protocol-agnostic serial gateway, the MVI46-GSC eliminates the need for external serial converters or custom ladder logic workarounds. It is the preferred solution for OEM machine builders and system integrators who require deterministic, low-latency serial data exchange within an existing SLC 500 control architecture.
Complete Technical Specifications
- Part Number: MVI46-GSC
- Platform: Allen-Bradley SLC 500 (1746 backplane)
- Serial Ports: 2 × configurable (Port 0 & Port 1)
- Supported Standards: RS-232, RS-422, RS-485 (software selectable per port)
- Baud Rates: 110 – 115,200 bps
- Data Bits: 5, 6, 7, or 8
- Parity: None, Even, Odd
- Stop Bits: 1 or 2
- Flow Control: Hardware (RTS/CTS), Software (XON/XOFF), None
- Backplane Interface: SLC 500 1746 I/O chassis (any slot)
- Backplane Data Transfer: Up to 64 words input / 64 words output per port
- Buffer Size: 4,096 bytes per port (Rx & Tx)
- Power Consumption: 800 mA @ 5 VDC (from backplane)
- Operating Temperature: 0°C to +60°C (32°F to 140°F)
- Storage Temperature: -40°C to +85°C
- Humidity: 5% to 95% non-condensing
- Mounting: SLC 500 rack (1746 chassis), any I/O slot
- Dimensions: Single-slot SLC 500 module form factor
- Weight: 230 g (approx.)
- Certifications: UL Listed, CE Marked, RoHS Compliant
- Firmware: Field-upgradeable via serial port
- Configuration Tool: ProSoft Configuration Builder (PCB) – free download
Proven Application Environments
- Barcode scanner and RFID reader integration on SLC 500 assembly lines
- Weigh scale and checkweigher data acquisition in food & beverage plants
- Legacy RTU and SCADA device connectivity in water/wastewater facilities
- Third-party drive and servo parameter exchange via RS-485 Modbus ASCII
- Printer and label applicator control in packaging and logistics automation
- GPS/GNSS receiver data ingestion for mobile equipment tracking
- Medical device and laboratory instrument interfacing in regulated environments
Engineering Advantages
- Protocol Agnostic: Handles any ASCII or binary serial protocol without custom firmware — configure message framing, delimiters, and termination characters via PCB software.
- Dual Independent Ports: Two fully isolated serial ports operate simultaneously with independent baud rates, protocols, and buffer configurations.
- Deterministic Backplane Exchange: Data is transferred to/from the SLC 500 data table on every scan, ensuring real-time synchronization with ladder logic.
- Non-Intrusive Installation: Occupies a single I/O slot; no special chassis or power supply required beyond standard SLC 500 infrastructure.
- Extensive Diagnostics: LED status indicators (Module OK, Port Activity, Error) plus backplane-accessible diagnostic registers for PLC-based fault monitoring.
- Free Configuration Software: ProSoft Configuration Builder (PCB) provides a graphical interface for port setup, message definition, and live data monitoring.
System Architecture & Signal Flow
The MVI46-GSC resides in the SLC 500 chassis and communicates with the SLC 500 processor via the 1746 backplane. On each PLC scan, the module exchanges a configurable block of input and output words with the processor’s data table. Ladder logic reads incoming serial data from the input image and writes outgoing serial data to the output image. The module’s internal firmware handles all serial framing, buffering, and handshaking autonomously, decoupling serial timing from PLC scan time. Configuration is performed offline using ProSoft Configuration Builder and downloaded to the module via the RS-232 configuration port (Port 0 in configuration mode).
Sourcing & Quality Verification
- Source: Authorized distributor channel and verified secondary market — all units inspected before shipment.
- Authenticity: Each module is verified against ProSoft’s published part number and firmware revision database.
- Condition Options: New-in-box (NIB), Refurbished (tested to OEM spec), and Used-tested available — please specify at inquiry.
- Warranty: 12-month Konmask warranty on all shipped units; NIB units carry remaining OEM warranty where applicable.
- Documentation: Certificate of conformance and test report available upon request for regulated industries.
Procurement Process
- Submit your RFQ via [email protected] or call +0086 19859288691.
- Receive a formal quotation with lead time, condition, and pricing within 24 business hours.
- Confirm purchase order — we accept T/T, PayPal, and major credit cards.
- Module is tested, packaged, and dispatched with tracking; EXW Xiamen or DDP available.
- Post-delivery technical support provided by Konmask engineering team.
Technical FAQ
Q: Can the MVI46-GSC implement Modbus RTU or ASCII?
A: Yes. Using ProSoft Configuration Builder, you can define Modbus ASCII or RTU message structures on either port. The module handles framing; ladder logic manages the data table.
Q: Is the MVI46-GSC compatible with SLC 5/01, 5/02, 5/03, 5/04, and 5/05 processors?
A: Yes. It is compatible with all SLC 500 processors that support 1746 I/O chassis expansion.
Q: What is the maximum cable length for RS-485?
A: Up to 1,200 m (4,000 ft) at lower baud rates per RS-485 standard; ProSoft recommends ≤600 m for reliable operation at 115,200 bps.
Q: Can both ports operate simultaneously at different baud rates?
A: Yes. Each port is independently configured and operates concurrently with no cross-port interference.
Q: Is firmware field-upgradeable?
A: Yes. Firmware updates are applied via the RS-232 port using ProSoft’s firmware update utility — no module removal required.
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Contact: [email protected] | +0086 19859288691
