BMXP3420302H | Schneider Electric Modicon M340 Processor Module

Why the BMXP3420302H Belongs in Your M340 Platform

When a Modicon M340 rack goes down, every minute of downtime cuts into production. The BMXP3420302H processor module from Schneider Electric keeps that platform running in the harshest conditions. Built specifically for severe environments, it combines high I/O capacity with CANopen and Ethernet connectivity in a single compact module.

This is not a general-purpose controller. It is the brain of your M340 automation platform, designed to handle up to 1024 discrete I/O points and 256 analog I/O points in multi-rack configurations. With four racks and eleven slots, it scales with your application.

Key Technical Specifications

• Product type: Processor module for Modicon M340 automation platform
• Product specific application: For severe environments
• Discrete I/O capacity: 1024 I/O multi-rack; 704 I/O single-rack
• Analogue I/O capacity: 256 I/O multi-rack; 66 I/O single-rack
• Racks: 4 | Slots: 11 | Application specific channels: 36
• Integrated connections: USB 12 Mbit/s; CANopen master bus SUB-D 9; Ethernet TCP/IP RJ45 10/100 Mbit/s
• Communication module capacity: 2 Ethernet modules; 4 AS-Interface modules
• Internal RAM: 4096 kB total (256 kB data; 3584 kB program constants and symbols)
• Execution speed: 0.12 µs Boolean; 0.17 µs double-length words; 0.25 µs single-length words; 1.16 µs floating points
• Current consumption: 135 mA at 24 V DC
• Operating temperature: -13…158 °F (-25…70 °C)
• Relative humidity: 10…95 % without condensation
• IP degree of protection: IP20
• Protective treatment: Conformal coating
• Net weight: 0.474 lb (0.215 kg)
• Certifications: CE, UL, CSA, RCM, EAC, Merchant Navy, ATEX zone 2/22, IECEx zone 2/22

Built for Severe Environments

The BMXP3420302H carries a conformal coating that resists gas, dust, sand, salt, mold, and fungal spores. It meets ISA S71.04 class Gx, IEC 60721-3-3 class 3C4, 3S4, and 3B2 standards. This module thrives where standard controllers fail: chemical plants, offshore platforms, and dusty processing floors.

Hazardous location ratings include Class I Division 2 and ATEX/IECEx zone 2/22. If your operation runs in explosive atmospheres, this processor is engineered to comply.

Applications That Demand This Module

Oil and gas processing — The wide -25…70 °C range and salt-resistant coating handle offshore rigs and coastal refineries. CANopen and Ethernet keep remote I/O synchronized across long cable runs.

Water treatment plants — With 256 analog I/O capacity, the BMXP3420302H manages flow, pressure, and chemical dosing loops. The IP20 rating suits cabinet-mounted installations.

Food and beverage production — Mold and fungal spore resistance meets washdown-adjacent environments. The processor runs 64 event tasks for precise batch control.

Integration and Compatibility

The BMXP3420302H speaks multiple protocols natively. CANopen master bus supports up to 63 server devices with transmission rates from 20 kbit/s to 1 Mbit/s. Ethernet TCP/IP provides 10BASE-T/100BASE-TX connectivity with Modbus TCP messaging, SNMP network administration, and a standard web server.

Integration Note: Wiring into CANopen or Ethernet networks may require an external gateway or connection module. Confirm cables and gateways with your supplier before commissioning.

A supplied memory card (BMXRMS008MP) backs up programs, constants, symbols, and data. It also activates the standard web server, class B10.

Selection Checklist for Buyers

Before ordering the BMXP3420302H, verify:

• Your rack configuration matches 4 racks / 11 slots
• I/O count stays within 1024 discrete or 256 analog multi-rack limits
• Your network uses CANopen, Ethernet TCP/IP, or USB
• Environmental conditions fall within -25…70 °C and 10…95 % RH
• You need ATEX zone 2/22 or Class I Division 2 compliance

SpareTech Plc stocks genuine parts ready for immediate dispatch. Our technical team helps you confirm compatibility before you buy.

Reliability You Can Plan Around

This processor delivers 6.4 Kinst/ms with 65 % Boolean and 35 % fixed arithmetic instructions. System overhead is just 0.13 ms for the fast task and 0.7 ms for the master task. That headroom keeps your application responsive even as logic grows.

Periodic inspection of the conformal coating and cabinet environment protects your investment. Keep humidity within spec and monitor the status LEDs for early fault detection.

Please verify current lifecycle status and availability with SpareTech Plc before ordering.

FAQs

Q: What is the maximum I/O capacity of the BMXP3420302H?

A: It handles 1024 discrete I/O and 256 analog I/O in multi-rack configurations, or 704 discrete and 66 analog in single-rack setups.

Q: Does this processor support Ethernet and CANopen simultaneously?

A: Yes. It includes an Ethernet TCP/IP RJ45 port and a CANopen master bus SUB-D 9 connector, plus a USB port at 12 Mbit/s.

Q: What environmental ratings does the BMXP3420302H carry?

A: It operates from -25…70 °C, resists gas, dust, sand, salt, mold, and fungal spores, and holds ATEX zone 2/22 and IECEx zone 2/22 certifications.

Q: How much memory does the BMXP3420302H provide?

A: It offers 4096 kB internal RAM, split into 256 kB data and 3584 kB for program constants and symbols, plus a supplied memory card.

Q: Is the BMXP3420302H suitable for hazardous locations?

A: Yes, it is rated for Class I Division 2 and ATEX/IECEx zone 2/22, making it appropriate for explosive atmospheres when installed correctly.

Contact SpareTech Plc today for pricing and availability.