Prosoft MVI71-MNET
Prosoft MVI71-MNET
Prosoft MVI71-MNET
Prosoft MVI71-MNET
Prosoft MVI71-MNET
Prosoft MVI71-MNET
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MVI71-MNET

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ProSoft MVI71-MNET is a single-slot Modbus TCP/IP client/server communication module that connects a Rockwell Automation PLC-5 processor with Modbus-compatible controllers, instruments, and network devices.
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Technical specifications for MVI71-MNET

  • Manufacturer:
    ProSoft
  • Part Number:
    MVI71-MNET
  • Product Family:
    ProSoft
  • Product Type:
    Modbus TCP/IP Client/Server Communication Module
  • Stock:
    1
  • Module format:
    Single-slot 1771 backplane compatible
  • Register space:
    5,000 words
  • Modbus server capacity:
    10 connections on port 502; 10 connections on port 2000
  • Modbus client capacity:
    1 client connection; up to 100 commands
  • Backplane current load:
    800 mA at 5 VDC
  • Ethernet connector:
    RJ45 with link and activity indicators
  • Electrical isolation:
    1,500 Vrms at 50–60 Hz for 60 seconds
  • Operating temperature:
    0 to 60 °C
  • Storage temperature:
    -40 to 85 °C
  • Relative humidity:
    5% to 95%, non-condensing
  • Operating shock:
    30 g
  • Non-operating shock:
    50 g
  • Vibration:
    5 g from 10 to 150 Hz
  • Tariff Code:
    8537101190
  • Country of origin:
    USA
  • Place of shipment:
    Xiamen,Fujian,China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals Data Map Client/Server Installation Application
  • Modbus TCP/IP client and server communication for PLC-5 processors
  • Single-slot 1771 backplane format using BTR/BTW block transfers
  • 5,000-word register space with one client and multiple server connections

MVI71-MNET is a ProSoft Modbus TCP/IP client/server communication module designed for the Rockwell Automation PLC-5 platform.

It links PLC-5 data with Modbus-compatible controllers, instruments, and Ethernet devices while maintaining module status and error information for the ladder application.

Before installation or replacement, verify rack addressing, backplane-current capacity, BTR/BTW logic, Ethernet addressing, register mapping, command files, and the saved module configuration.

Availability, condition, price, and shipping time for MVI71-MNET are confirmed during quotation.

ProSoft MVI71-MNET Modbus TCP/IP Communication Module Manuals, Datasheets, Links

Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.

  • A 5,000-word module register space holds transferred Modbus and PLC data
  • PLC-5 ladder logic exchanges data with the module through BTR and BTW instructions
  • Module status, counters, and error data can be returned to the processor for diagnostics
  • The client supports one connection with up to 100 configured commands
  • Ten server connections are available on port 502 and ten on port 2000
  • Client and server function-code support is defined separately in the official protocol specification
  • The 1771 backplane must provide 800 mA at 5 VDC for the module
  • The module can operate in a local or remote rack when the PLC-5 block-transfer logic is configured correctly
  • Rack power must be removed before the module is inserted or withdrawn
  • PLC-5 data exchange with Modicon programmable automation controllers
  • Acquisition of measurement data from Modbus TCP/IP instruments
  • Providing PLC-5 register data to external Modbus TCP/IP client systems
Description
MVI71-MNET is a ProSoft Modbus TCP/IP client/server communication module for the Rockwell Automation PLC-5 platform.

The module occupies one 1771 backplane slot, exchanges data with the processor through block transfers, provides a 5,000-word register space, and supports Modbus TCP/IP client and server operation through its Ethernet interface.

Before installation or replacement, confirm the local or remote rack arrangement, 800 mA backplane-current capacity, PLC program and block-transfer sizes, Ethernet addressing, command list, and the saved ProSoft Configuration Builder project.
Alternative Names
MVI71-MNET MVI71 MNET MVI71MNET ProSoft MVI71-MNET ProSoft Technology MVI71-MNET
Technical notes
MVI71-MNET links PLC-5 block transfers with Modbus TCP/IP client/server data. Verify rack addressing, 800 mA capacity, Ethernet settings, command files, and supplied adapter cables.
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
How does MVI71-MNET exchange Modbus data with a PLC-5 processor?
MVI71-MNET maps Modbus data into its internal register space and moves data across the 1771 backplane with PLC-5 BTR and BTW instructions. The ladder program, rack location, and block sizes must match the module configuration.
Can MVI71-MNET operate as a Modbus TCP/IP client and server at the same time?
Yes. Its client can execute a configured command list while its servers answer requests from external devices. Check register ownership and update timing so simultaneous reads and writes do not conflict.
Why can MVI71-MNET connect to a device but return invalid or incomplete data?
Check the Unit ID, function code, register offset, data type, word order, command mapping, and whether the target device permits the requested access.
What limits the MVI71-MNET client command list?
The client supports one connection with as many as 100 configured commands. Poll interval, timeout, retry settings, target IP addresses, function codes, and register ranges determine practical scan performance.
Can MVI71-MNET be installed in a remote 1771 rack?
Yes. ProSoft documents both local and remote-rack use through PLC-5 block transfers. Confirm the remote I/O arrangement and that BTR/BTW messages reach the correct rack, group, and slot.
May MVI71-MNET be removed while the 1771 rack is energized?
No. The user manual instructs users to remove power before inserting or removing the module. Also verify that the rack supply can provide the required 800 mA at 5 VDC.
Which supplied accessories should be checked when replacing MVI71-MNET?
The official package list includes the module, Cable #15 null-modem cable, an RJ45-to-DB9 adapter, and the Solutions CD. A used unit may not include these items, so state included accessories in the quotation.

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