MVI56E-MCMXT ProSoft ControlLogix Datasheet & Technical Manual

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ProSoft MVI56E-MCMXT ControlLogix Modbus Communication Module The ProSoft MVI56E-MCMXT, also cataloged as the MVI56E-MCMXT Modbus Master/Slave Enhanced Network Interface Module,...

SKU: MVI56E-MCMXT

Manufacturer: PROSOFT
Product No.: MVI56E-MCMXT
Product Type: Modbus Communication Modules
Product Origin: USA
Payment:T/T, Western Union
Weight: 1360g
Shipping port: Xiamen
Warranty: 12 months

Description Reviews

ProSoft MVI56E-MCMXT ControlLogix Modbus Communication Module

The ProSoft MVI56E-MCMXT, also cataloged as the MVI56E-MCMXT Modbus Master/Slave Enhanced Network Interface Module, operates as a dedicated hardware component for multi-port serial data exchange within Allen-Bradley ControlLogix backplane architectures.

Hardware Specifications

Parameter	Specification
Model	MVI56E-MCMXT
Brand	ProSoft Technology
Origin	United States
Weight	1.36 kg (3.00 lbs)
Dimensions	Single-slot ControlLogix module
Operating Temp	0 deg C to 60 deg C (32 deg F to 140 deg F)
Power Consumption	Backplane powered, 800 mA at 5 VDC
Slot Occupancy	1 slot
Rack Type Compliance	Local or Remote rack placement
Memory Capacity	10,000 user-definable 16-bit registers
Serial Ports	2 x independent isolated Modbus RTU/ASCII ports
Baud Rate Range	110 baud to 115.2 kbps
Parity	None, Even, Odd
Stop Bits	1 or 2
RTS Timing Delays	0 to 65535 milliseconds
Operational Shock	30 G
Diagnostic Display	4-character scrolling alphanumeric LED
Configuration Interface	10/100 Mbps Ethernet port

Protocol Conversion Latencies & Serial Performance

The module interfaces directly with ControlLogix processors via localized backplane bus communication, converting industrial serial data into standard I/O data tables. Operating as a Modbus Master, each independent port handles up to 100 commands, executing binary RTU mode with CRC-16 error checking or ASCII mode with LRC error checking.

Internal database mapping allocates up to 5,000 registers for slave configuration, maintaining low protocol conversion latencies across asynchronous serial networks. Hardware-level physical layer isolation protects the memory registers from common-mode line noise, and user-definable RTS delays prevent packet collisions on RS-485 multi-drop loops.

Frequently Asked Questions

Q: Does the MVI56E-MCMXT support Remove and Insert Under Power (RIUP) operations? A: Yes. The module hardware is fully compliant with 1756 backplane hot-swap standards, allowing extraction and insertion while the chassis is powered. However, active Modbus serial polling on the sub-networks will terminate instantly upon module removal.

Q: What is the significance of the "XT" suffix in this module variant? A: The XT designation specifies that the module is equipped with conformal coating to defend internal components against caustic atmospheric environments. It is designed to match the mechanical and electrical specifications of the Allen-Bradley ControlLogix-XT control platform.

Q: Can the internal database configuration be retrieved or updated remotely over the Ethernet network? A: Yes. The module is CIPconnect enabled, which permits full engineering access, database modifications, and diagnostics via bridged 1756-ENBT or similar network interface modules over an EtherNet/IP topology.

Field Installation Guidelines

Chassis Alignment and Insertion: Align the circuit board with the top and bottom guides of a single slot in the 1756 backplane. Press firmly until the module latches secure it into the chassis connectors.
Grounding and Shielding Protocols: Ensure that the ControlLogix chassis is bonded to the industrial enclosure ground bus using a low-impedance conductor. Serial communication cables must utilize shielded twisted-pair wire, with the shield terminated at one point only to prevent ground loops.
Network Segment Node Limits: When configuring the serial ports as a Modbus Master, respect the physical limitation of up to 247 slave node addresses per port. Ensure proper end-of-line termination resistors (typically 120 ohms) are applied to RS-485 network segments to maintain signal integrity at higher baud rates up to 115.2 kbps.

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