ProSoft MVI94-MCM Modbus Master/Slave Communication Module
$123.00
$320.00
Description
ProSoft MVI94-MCM Modbus Master/Slave Communication Module
Configured for Modbus master/slave communication within the 1794 Flex I/O system, the ProSoft MVI94-MCM (MVI94-MCM Modbus Communication Module) provides serial protocol interfacing through dedicated configuration and application ports.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | MVI94-MCM |
| Brand | ProSoft |
| Product Type | Modbus Master/Slave Communication Module |
| Product Line | 1794 Flex I/O |
| Compatible Series | Allen-Bradley 1794 Flex I/O |
| Module Type | Modbus communication module |
| Form Factor | Single-slot module |
| Slot Position | Any slot |
| Backplane Current | 20 mA @ 5 VDC |
| External Power Supply | 12 to 24 VDC, 340 to 170 mA |
| Configuration Port | PRT1, Mini-DIN, RS-232, hardware handshaking |
| Application Port | PRT2, Mini-DIN, RS-232/422/485, jumper selectable |
| Application Port Isolation | 500 V optical isolation from backplane |
| Supported Modbus Function Codes | 1, 2, 3, 4, 5, 6, 15, 16 |
| Command Capacity | 100 commands per port maximum |
| Register Capacity | 5000 maximum |
| Enron Modbus Version | Supported |
| Memory Usage | User definable |
| Operating Temperature | 0 deg C to 55 deg C |
| Storage Temperature | -40 deg C to 85 deg C |
| Relative Humidity | 5% to 95%, non-condensing |
| Shock | 30 g operational |
| Dimensions | 9.4 cm x 9.4 cm x 6.9 cm |
| Weight | 0.44 lb |
| LED Indicators | Module status, backplane transfer, application status, serial activity, error |
| Operation | Dictated by user program |
Serial Protocol Conversion and Port Isolation
The MVI94-MCM provides separate configuration and application serial interfaces for Modbus communication management. PRT1 uses RS-232 with hardware handshaking for configuration functions.
PRT2 supports RS-232, RS-422, and RS-485 through jumper selection for application-side serial communication. The application interface provides 500 V optical isolation from the Flex I/O backplane.
The module supports Modbus function codes 1, 2, 3, 4, 5, 6, 15, and 16. Command processing supports up to 100 commands per port, while the register capacity is specified at 5000 maximum.
The module transfers data through the 1794 Flex I/O backplane with a specified current load of 20 mA at 5 VDC. Therefore, backplane loading should be included when calculating the available FlexBus current budget.
Frequently Asked Questions (FAQ)
Q: Can the MVI94-MCM communicate using RS-485?
A: Yes. The PRT2 application port supports RS-232, RS-422, and RS-485 through jumper selection.
Q: Is the application serial port isolated from the Flex I/O backplane?
A: Yes. PRT2 provides 500 V optical isolation between the application serial interface and the backplane.
Q: What Modbus function codes are supported?
A: The module supports function codes 1, 2, 3, 4, 5, 6, 15, and 16.
Field Installation Guidelines
Install the MVI94-MCM in an available single-slot position within the compatible 1794 Flex I/O assembly.
Verify the selected PRT2 jumper configuration before connecting RS-232, RS-422, or RS-485 field wiring. Do not change interface selection while energized.
Route serial communication wiring separately from high-voltage power conductors and high-current switching circuits. Maintain appropriate physical separation where parallel routing could introduce electromagnetic interference.
For shielded serial cables, terminate shielding according to the plant grounding standard and avoid creating unintended ground loops. RS-485 installations should maintain correct polarity and termination practices for the connected network topology.
Verify the external 12 to 24 VDC supply and calculated current requirement before energizing the module. Include the 20 mA at 5 VDC backplane load in the Flex I/O power budget.
Confirm module status, backplane transfer, application, serial activity, and error indicators during commissioning. Configuration parameters should correspond to the connected Modbus device addressing and serial interface settings.
Features
Minimum Order Quantity (MOQ)
We welcome bulk orders and have a minimum order quantity of just one unit.
Certificates and Documentation
Upon request, we can provide all necessary documentation, including Certificates of Origin/Conformance and other required export documents.
Delivery Time
For items in stock, we aim to deliver within 1-3 days after payment confirmation. Items with specified lead times will be delivered according to the quoted schedule.
Payment Methods
We accept 100% T/T (Telegraphic Transfer) payment before shipping. For items with lead times, a 30% deposit is required upfront, with the remaining 70% due before shipment. For RMB transfers, please contact us if you have an agent in China.
Warranty
We offer a standard one-year warranty on all new and original items. If you require an extended warranty, please contact us for additional cost details.
Refund and Return Policy
Your satisfaction is important to us. If you need to return an item, it must be done within 30 days of the order date. The product must be unused, unopened, and in its original packaging with all accessories included. Refunds are processed within 5-7 business days after we receive the returned item. Please note that shipping and related charges are non-refundable.
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