1. Product Overview

• Model: MVI46‑MBP

• Manufacturer: ProSoft Technology

• Platform: Allen‑Bradley SLC 500 (1746 backplane, single‑slot)

• Protocol: Modbus Plus (MB+), peer‑to‑peer industrial network

• Function: Enables SLC 500 PLCs to connect to Modbus Plus networks for bidirectional data exchange with Modicon PLCs, drives, relays, power monitors, and other MB+ devices.

2. Key Features

• Dual‑port Modbus Plus interface (MB+ network, 57.6 kbps, no parity, 1 stop bit)

• Peer‑to‑peer communication (master/slave supported)

• 4,000‑word shared data space between SLC and MB+ network via M0/M1 files

• Up to 100 word read/write per transfer; global in/out: 0–32 words

• Node address configurable 1–64; supports MB+ routing up to 5 levels

• Asynchronous data transfer (SLC operations independent of MB+ network)

• Ladder logic example included for M0/M1 data mapping

• Diagnostic LEDs: Power, Run, Backplane, MB+ Link/Activity

3. Technical Specifications

General

• Slot usage: 1 slot (1746 local/extended rack; remote rack not supported)

• Backplane current: 300 mA @ 5 VDC

• Data exchange: M0/M1 files (SLC memory access)

Modbus Plus Network

• Baud rate: 57,600 bps (fixed)

• Parity/stop bits: No parity, 1 stop bit

• Max nodes: 64 per network segment

• Function codes (slave): 1, 2, 3, 4, 5, 6, 15, 16

Environmental

• Operating temp: 0°C to +60°C (32°F to 140°F)

• Storage temp: -40°C to +85°C (-40°F to 185°F)

• Humidity: 5%–95% non‑condensing

• Vibration: 5 g (10–150 Hz)

• Shock: 30 g (operational), 50 g (non‑operational)

4. LED Indicators

• PWR: On = backplane power OK

• RUN: On = module operational; flashing = firmware activity

• BP LINK: On = backplane communication active

• MB+ LINK: On = MB+ network connected

• MB+ ACT: Flashing = MB+ data transmission

5. Installation & Configuration

1. Power off the SLC 500 chassis.

2. Insert MVI46‑MBP into an empty 1746 slot.

3. Connect MB+ network cable to the module’s MB+ port.

4. Power on the system; verify module recognition via RSLogix 500.

5. Configure node address (1–64) and MB+ parameters using the configuration tool.

6. Map SLC data (M0/M1 files) to MB+ registers via ladder logic.

7. Download configuration and test MB+ communication.

6. Applications

• Connect SLC 500 to Modicon PLCs (Modbus Plus)

• Integrate drives, relays, power monitors into SLC systems

• Legacy SLC equipment networking upgrades

• Factory‑wide Modbus Plus network monitoring

• Industrial SCADA data collection via MB+

7. Advantages

• Seamless SLC ↔ Modbus Plus integration

• High‑speed, deterministic MB+ communication

• Large 4,000‑word data buffer for complex data exchange

• Robust industrial design for harsh environments

• Proven compatibility with Rockwell Automation systems