Schneider BMXP3420302 Modicon M340 CPU Module

Schneider BMXP3420302 Modicon M340 CPU Module

Product Introduction

The BMXP3420302 belongs to the Schneider Electric Modicon M340 platform. This performance CPU module suits mid-range automation systems that need fast processing and flexible communication. Specifically, it combines an ARM9 processor running at 180 MHz with 3584 KB of program memory. Therefore, engineers can build complex logic, motion, and process control applications on one compact unit.

Moreover, this controller supports up to 1024 discrete I/O points and 256 analog I/O points. It also provides 36 application channels across 11 module slots. As a result, the module fits both small machines and larger distributed systems. Additionally, the built-in CANopen master handles up to 63 slaves, while the Ethernet port supports Modbus TCP/IP for plant-level integration.

Technical Specifications

The BMXP3420302 delivers strong computing power for its class. Its ARM9 processor runs at 180 MHz, and the scan speed reaches 8.1 Kinst/ms for pure boolean logic. Meanwhile, mixed instructions execute at 6.4 Kinst/ms. The internal RAM totals 4096 KB, which supports data, constants, and symbol tables.

For memory, the module reserves 3584 KB for application code, symbols, and comments. In addition, it offers 256 KB for data and constants. This split helps programmers manage large projects without external storage.

Communication stands out as a key strength. First, one CANopen RJ45 port acts as a master for up to 63 slaves. Next, one Ethernet RJ45 port runs at 10/100 Mbps and supports Modbus TCP/IP. Finally, a USB Mini-B port simplifies local programming and diagnostics.

I/O Capacity and Rack Support

The CPU supports 1024 discrete I/O points in total. Per single rack, it accepts 704 discrete points. For analog signals, the maximum reaches 256 points, with 66 points per single rack.

Rack compatibility covers 4, 6, 8, and 12-slot X80 racks. The system allows 1 main rack plus 3 expansion racks. Consequently, users can scale the architecture as machine requirements grow. The 11 module slots and 36 application channels give engineers room for mixed I/O, communication, and specialty modules.

Communication and Expansion Options

Beyond the built-in ports, the BMXP3420302 accepts optional X80 communication modules. For instance, the BMXNOM0200 adds Modbus serial communication. Furthermore, the BMXNOR0200 provides extra CANopen connectivity. The BMENOC03xx family enables Ethernet/IP, and the BMXEIA0100 delivers serial links.

This flexibility means the same CPU can serve factory automation, water treatment, and packaging lines. Besides, Modbus TCP/IP support allows direct data exchange with SCADA and MES systems.

Electrical and Mechanical Parameters

The module draws power from the backplane at 24 V DC. Its power consumption stays low at 2.9 W, and the bus current equals 120 mA at 24 V DC. These values help engineers plan panel power budgets accurately.

Physically, the unit measures 100 × 28 × 93 mm (H×W×D) and weighs 0.215 kg. The compact footprint saves DIN rail space in crowded cabinets.

Environmental Conditions

Operating temperature ranges from 0°C to +60°C. Storage temperature spans -25°C to +70°C. Relative humidity sits between 5% and 95%, non-condensing. The protection rating is IP20, which suits clean industrial enclosures. Therefore, install the module inside a control cabinet with proper ventilation.

Installation Guide

Mounting the BMXP3420302 follows standard Modicon M340 procedures. First, snap the CPU onto the X80 rack and secure the locking screws. Next, connect the 24 V DC backplane supply and verify the bus current stays within limits. Then, attach the CANopen, Ethernet, and USB cables as needed.

After wiring, power up the rack and check the LED indicators. The module should show a steady RUN light after configuration. Finally, load the application using EcoStruxure Machine Expert (formerly Unity Pro). Always follow Schneider's grounding and EMC guidelines for reliable operation.

Packaging List

• 1 × Schneider BMXP3420302 Modicon M340 CPU Module

• 1 × Protective factory carton

• 1 × Quick start leaflet

Shipping methods: Fedex, UPS, DHL.

FAQ

1. What software programs the BMXP3420302?
Use EcoStruxure Machine Expert, previously named Unity Pro. The software supports all Modicon M340 CPUs.

2. How many I/O points does this CPU support?
It handles up to 1024 discrete points and 256 analog points. Per single rack, limits reach 704 discrete and 66 analog.

3. Which communication ports are built in?
The module includes one CANopen RJ45 port, one Ethernet RJ45 port, and one USB Mini-B port. Ethernet supports Modbus TCP/IP.

4. Can I expand the system with more racks?
Yes. The CPU allows one main rack plus three expansion racks. Compatible X80 racks come in 4, 6, 8, and 12-slot sizes.

5. What is the typical lead time and shipping method?
Stock availability varies, so confirm lead time before ordering. We ship worldwide via Fedex, UPS, and DHL.