The ProSoft MVI56-GSC is a Generic ASCII Serial Communication Module for the Rockwell Automation ControlLogix platform. It adds two fully configurable serial ports that enable the ControlLogix processor to communicate with ASCII-based devices such as barcode scanners, weigh scales, printers, and legacy serial instruments—without consuming the processor's front port or valuable processing time.
Item No :
MVI56-GSCOrder(MOQ) :
1Payment :
EXWProduct Origin :
USAShipping Port :
WuhanLead Time :
3-5daysWeight :
5KGPart Number: MVI56-GSC
Product Type: Generic ASCII Serial Communication Module
Platform: Rockwell Automation ControlLogix (1756 backplane), single-slot
Serial Ports: 2 application ports + 1 debug/configuration port
Electrical Interfaces: RS-232, RS-422, RS-485 (hardware-selectable via onboard jumpers)
Data Rate: Up to 115.2 kbps
Max Message Size: Up to 4096 characters or bytes per port
Backplane Current Load: 800 mA @ 5 V DC; 3 mA @ 24 V DC
Data Memory: User-definable mapping of up to 5000 16-bit registers
Port Isolation: 1000V isolation between application ports and ControlLogix backplane
Operating Temperature: 0°C to 60°C (32°F to 140°F)
Configuration: Sample ladder logic; Add-On Instruction (AOI) support for RSLogix 5000 version 16 and later
| Category | Model | Key Features |
|---|---|---|
| Enhanced Upgrade | MVI56E-GSC | Backward-compatible replacement with onboard Ethernet port, web server, scrolling LED diagnostics, and CIPconnect remote access |
| CompactLogix Alternative | ILX56-MM | InRail series upgrade for CompactLogix platforms; modern hardware architecture |
| Ethernet/IP Gateway | EG-EIP2ASCII | Ethernet/IP to ASCII gateway; connects via Ethernet, no in-chassis slot required |
Q1: What types of devices can I connect with the MVI56-GSC?
The module supports any serial device that communicates using ASCII text strings or byte values—including barcode scanners, weigh scales, RFID readers, serial printers, terminal emulators, and legacy instrumentation .
Q2: Does the MVI56-GSC require ladder logic in the ControlLogix processor?
Yes. Ladder logic is required for data transfer between the module and the ControlLogix processor. For RSLogix 5000 version 16 and above, an Add-On Instruction (AOI) is provided to simplify integration .
Q3: Can the MVI56E-GSC replace my existing MVI56-GSC without program changes?
Yes. The MVI56E-GSC is backward-compatible with existing ladder logic and configuration files, allowing for a smooth upgrade without controller program modifications .
Q4: What is the maximum message size the module can handle?
Each port can send and receive ASCII strings or byte streams of up to 4096 characters/bytes per message . For longer transmissions, the module can sequence packets of up to 100 characters at a time .
Q5: Do the serial ports provide electrical isolation?
The two application serial ports provide 1000V of electrical isolation between the port and the ControlLogix backplane. The debug/configuration port does not provide isolation, and none of the ports provide isolation between the port and the module's internal circuitry.
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