Schneider Electric BMXP342020H Modicon M340 Severe Environment Processor

Full Series: Modicon M340
Product Type: Processor Module
Product Category: Controllers & CPUs
Price (RMB): ¥9,850
Gross Weight: 0.25 kg

SEO Title 1: Schneider BMXP342020H CPU | Modicon M340 Severe Environment
SEO Title 2: BMXP342020H Schneider Electric | M340 Series Processor Module

Meta Description: Buy Schneider Electric BMXP342020H Modicon M340 processor for severe environments. 1024 discrete I/O, 256 analog I/O, Modbus, Ethernet, conformal coated. In stock.

Full Article Summary: The Schneider Electric BMXP342020H is a processor module for the Modicon M340 platform. It handles 1024 discrete I/O and 256 analog I/O. This unit includes Modbus and Ethernet ports. Designed for severe environments, it features conformal coating. Its operating temperature ranges from -25°C to 70°C.

1. Technical Specifications of BMXP342020H

The Schneider Electric BMXP342020H delivers robust processing for harsh conditions. For system expansion, this processor module supports 4 racks with up to 11 slots each. Regarding I/O capacity, discrete points reach 1024 I/O in multi-rack configuration. In a single-rack setup, discrete I/O handles 704 I/O maximum. For analog signals, the capacity reaches 256 I/O in multi-rack. Meanwhile, single-rack analog I/O supports 66 I/O maximum. Additionally, the unit manages up to 36 application specific channels.

Memory specifications are equally impressive. The BMXP342020H includes 4096 kB internal RAM in total. Program, constant and symbol memory uses 3584 kB of that space. Data memory separately provides 256 kB for variable storage. A supplied BMXRMS008MP memory card backs up programs and data seamlessly. This memory card also activates the standard web server at class B10. For object areas, default sizes include 1024 %MWi internal words. Located internal bits reach 512 %Mi as a standard configuration.

2. Performance and Execution Times

The Schneider Electric BMXP342020H offers fast program execution for demanding applications. For Boolean logic, instructions run at 0.12 µs per operation. Single-length word instructions take 0.25 µs to complete. Double-length word operations execute in 0.17 µs. When handling floating point math, each operation takes 1.16 µs. Consequently, the unit processes 8.1 Kinst/ms for 100% Boolean logic. For mixed Boolean and fixed arithmetic, it runs at 6.4 Kinst/ms. System overhead stays at 0.7 ms for the master task. Furthermore, fast task overhead is only 0.13 ms for rapid responses.

3. Communication Ports and Protocols

The BMXP342020H includes multiple integrated connection types for flexible networking. Specifically, it offers non-isolated serial links on RJ45 ports. These support RS232C and RS485 at 0.3 to 19.2 kbit/s. Modbus master/slave RTU and ASCII modes are available on these ports. An Ethernet TCP/IP port with RJ45 connector runs at 10/100 Mbit/s. Moreover, the USB port operates at 12 Mbit/s for convenient programming. Embedded services include Modbus TCP messaging and bandwidth management. SNMP network administrator and Rack Viewer are also supported features. In addition, the unit can host 2 Ethernet communication modules. It also supports 4 AS-Interface modules for specialized I/O needs.

4. Severe Environment Features

The Schneider Electric BMXP342020H is built specifically for harsh locations. For protection, it includes conformal coating against moisture and dust. Operating temperature ranges from -25°C to 70°C (-13°F to 158°F). Relative humidity tolerance spans 10% to 95% without condensation. The module holds an IP20 protection class for indoor use only. Regarding hazardous areas, it meets ATEX zone 2/22 and IECEx zone 2/22 certifications. Its hazardous location rating includes Class I Division 2 as well. For gas resistance, it meets class Gx ISA S71.04 and 3C4 IEC 60721-3-3. Dust and sand resistance reach class 3S4 under the same standard. Salt resistance is rated level 2 per IEC 68252. Finally, mold and fungal spore resistance meet class 3B2 for long-term reliability.

5. Status LEDs and Diagnostics

The BMXP342020H provides 8 status LEDs for clear system monitoring. A green RUN LED shows the processor is running normally. In contrast, a red ERR LED indicates processor or system faults. A red I/O LED signals problems with I/O modules. A red CARD ERR LED warns of memory card issues. For network status, Ethernet includes a green ETH STS LED and green ETH ACT LED. A red ETH 100 LED lights when operating at 100 Mbit/s speed. Additionally, a yellow SER COM LED shows Modbus activity on the serial ports. The module also supports diagnostic counters and event counters for Modbus communication analysis.

6. Application Structure

The Schneider Electric BMXP342020H offers flexible task management for complex programs. It runs 1 cyclic or periodic master task for main logic execution. A separate 1 periodic fast task handles time-critical operations independently. For interrupt-driven processes, the unit supports 64 event tasks. However, no auxiliary task is available on this particular model. Therefore, this structure suits demanding automation applications well.

7. Installation Guide for BMXP342020H

Turn off rack power completely before starting the installation. Insert the Schneider Electric BMXP342020H into the CPU slot of an M340 rack. Push the module firmly until it locks into position. Connect your programming PC via the USB port or Ethernet port. Attach Modbus devices to the RS232C or RS485 RJ45 ports as needed. Install the supplied BMXRMS008MP memory card for data backup functionality. Apply power to the rack and check the green RUN LED. The BMXP342020H boots and loads your program automatically upon power-up. Finally, configure Ethernet settings using your programming software.

8. Package Contents

Your package includes one Schneider Electric BMXP342020H processor module. You also receive one BMXRMS008MP memory card for program backup. One quick start guide is included for basic setup reference. No communication cables are provided inside the box. Additionally, no rack or power supply is included with this unit.

9. Frequently Asked Questions (FAQ)

Q1: What makes the BMXP342020H different from standard M340 CPUs?

The Schneider Electric BMXP342020H includes conformal coating for protection. It operates from -25°C to 70°C instead of 0°C to 60°C. Furthermore, it holds ATEX and IECEx hazardous location certifications. Consequently, this makes it suitable for severe environments.

Q2: Can the BMXP342020H work without the memory card?

No. The BMXP342020H requires the supplied BMXRMS008MP memory card for operation. This card stores programs, constants, symbols and data. Without it, the processor will not run your application at all.

Q3: What is the maximum number of Modbus devices on one port?

Each Modbus port on the Schneider Electric BMXP342020H supports up to 32 devices maximum. The RS485 port handles multi-drop networks effectively. However, the RS232C port is for point-to-point connections only.

Q4: Is the BMXP342020H compatible with standard M340 I/O modules?

Yes. This processor works with all standard Modicon M340 I/O modules without exception. The BMXP342020H supports up to 1024 discrete I/O and 256 analog I/O. Therefore, you can use any combination of digital, analog, and specialty modules.

Q5: What certifications does the BMXP342020H hold for marine use?

The Schneider Electric BMXP342020H holds Merchant Navy certification for shipboard use. It also meets IACS E10 standards for marine equipment. As a result, you can use this processor for marine automation and control systems.