ProSoft Technology 3350‑MBP Modbus‑Plus Communication Interface Module for Allen‑Bradley ControlLogix Chassis

Description

ProSoft Technology 3350‑MBP Modbus‑Plus Communication Interface Module for Allen‑Bradley ControlLogix Chassis

Product Details

The 3350‑MBP is a 1756‑form‑factor ControlLogix chassis‑mount Modbus‑Plus communication interface module manufactured by ProSoft Technology. Origin: USA. Lifecycle status: EOL discontinued, factory no longer produces new units; market supply is NOS surplus stock and fully tested refurbished spare‑parts for legacy Rockwell automation system maintenance.

It serves as a hardware gateway, enabling ControlLogix PLC to communicate with legacy Modbus‑Plus devices (Quantum PLC, Modbus‑Plus remote I/O, operator panels). It connects to the ControlLogix backplane, provides one DB‑9 Modbus‑Plus port, supports Modbus‑Plus peer‑to‑peer data exchange, data mapping between ControlLogix tags and Modbus‑Plus node registers. Module powered by ControlLogix chassis backplane 5VDC, consumes approx 1.2A. Supports up to 64 Modbus‑Plus slave nodes on network. Configuration is completed via ProSoft configuration software or RSLogix 5000 add‑on profile. Front‑panel LED indicators for backplane status, Modbus‑Plus network activity and fault diagnosis. Requires matching Modbus‑Plus network terminator for correct bus operation.

3350-MBP

Applications

‑ ControlLogix platform connecting legacy Modbus‑Plus Quantum PLC systems ‑ Petrochemical plant old‑generation Modbus‑Plus DCS migration & spare‑part replacement ‑ Power‑plant auxiliary control system Modbus‑Plus network interconnection ‑ Manufacturing site retrofitting for legacy Modbus‑Plus remote‑I/O devices ‑ Pulp‑and‑paper mill automation system maintenance ‑ Water‑treatment plant ControlLogix interworking with Modbus‑Plus instruments ‑ Spare inventory for existing Rockwell ControlLogix legacy automation racks

Related Series Models (6+)

1. 3350‑MBP‑E (Conformal coated version)
2. MVI56‑MBP (Later‑generation Modbus‑Plus module for ControlLogix)
3. MVI46‑MBP (SLC500 Modbus‑Plus interface)
4. 3150‑MBP (Modbus‑Plus for PLC‑5 chassis)
5. 1756‑ENBT
6. MVI56‑ADM
7. 3350‑DFM

Key Features

1. ControlLogix chassis form‑factor dedicated Modbus‑Plus communication gateway module, fits standard 1756 rack slot.
2. Single DB‑9 Modbus‑Plus port, supports peer‑to‑peer communication with maximum 64 Modbus‑Plus bus nodes.
3. Realizes bidirectional data mapping between ControlLogix controller tags and Modbus‑Plus device register addresses.
4. Powered entirely by ControlLogix backplane, no external power supply required.
5. Front‑panel multi‑LED status indicators for backplane health, network traffic and fault alarm.
6. Configuration via RSLogix5000 AOP or dedicated ProSoft configuration tool.
7. Conformal coated variant 3350‑MBP‑E available for corrosive cabinet environment.
8. Manufactured in USA, EOL obsolete; only NOS or tested refurbished spare‑parts available.

Main Functions

1. Act as communication bridge between Allen‑Bradley ControlLogix PLC and Modbus‑Plus field‑bus network.
2. Read/write register data for Modbus‑Plus slave devices, transfer data to ControlLogix controller tag memory area.
3. Support peer‑to‑peer Modbus‑Plus protocol, realize inter‑controller data exchange with Modicon Quantum and other Modbus‑Plus PLC.
4. Diagnose Modbus‑Plus bus faults, short‑circuit and communication errors, report status via front‑panel LED and controller tags.
5. Accept network parameter download, realize Modbus‑Plus node address configuration and data table mapping.
6. Cooperate with ControlLogix CPU to complete data interaction between new ControlLogix platform and old‑generation Modbus‑Plus automation equipment.
7. Require proper Modbus‑Plus bus termination resistor to guarantee stable bus‑network operation.
8. Serve as legacy‑system retrofit communication component for Rockwell ControlLogix automation rack.