The BMXP342020H acts as the central processing unit for Modicon M340 programmable automation controllers. This performance-level CPU carries a conformal coating that shields sensitive electronics from moisture, dust, and chemical contaminants. Engineers choose this coated variant for installations in demanding industrial settings.
Furthermore, the module combines Ethernet TCP/IP and Modbus serial communication in one unit. This dual connectivity reduces wiring complexity and hardware costs. The integrated web server also supports remote diagnostics without additional software.
The BMXP342020H processor runs on an ARM9 core clocked at 180 MHz. Its program memory reaches 3584 KB, covering application code, symbols, and comments. Data memory is 256 KB for variables and constants. Internal RAM totals 4096 KB for runtime operations.
Scan performance meets demanding control requirements. Boolean instruction execution takes just 0.12 microseconds. The processor handles 8.1 Kinst/ms for pure boolean logic and 6.4 Kinst/ms for mixed instructions.
For I/O capacity, this CPU supports up to 1024 discrete I/O points. Analog capacity reaches 256 points. A single rack configuration handles 704 discrete and 66 analog points. Moreover, the module manages one local rack plus three expansion racks.
The table below summarizes the key parameters:
| Parameter | Specification |
|---|---|
| Processor | ARM9, 180 MHz |
| Program Memory | 3584 KB |
| Data Memory | 256 KB |
| Internal RAM | 4096 KB |
| Max Discrete I/O | 1024 points |
| Max Analog I/O | 256 points |
| Rack Support | 1 local + 3 expansion |
| Application Channels | 36 |
The BMXP342020H includes three built-in communication ports. First, an Ethernet RJ45 port supports 10/100 Mbps connections. This port handles Modbus TCP/IP traffic. Second, a Modbus serial RJ45 port operates in RS232 or RS485 mode. Third, a USB Mini-B port serves programming tasks.
Additionally, optional X80 communication modules expand network options. Supported modules include the BMXNOM0200 for Modbus serial and the BMXNOR0200 for CANopen. Ethernet/IP connectivity comes through BMENOC03xx modules.
The conformal coating on this module provides a protective layer over the PCB assembly. This coating guards against humidity, airborne particles, and corrosive gases. As a result, the BMXP342020H suits food processing, chemical, and outdoor cabinet installations.
Operating temperature ranges from 0°C to +60°C. Storage temperature extends from -25°C to +70°C. Relative humidity tolerance is 5% to 95% without condensation. The protection rating is IP20, which fits standard cabinet mounting.
The module measures 100 mm in height, 28 mm in width, and 93 mm in depth. It weighs 0.205 kg. Mounting occurs directly on the X80 backplane.
Power consumption is modest at 2.4 W. The module draws 100 mA at 24 V DC through the backplane. Supply voltage comes from the rack, so no separate power wiring is needed.
Installing the BMXP342020H requires proper X80 rack preparation. First, verify that the rack slot is free and the backplane connector is clean. Next, align the module with the rack guides and slide it firmly into position. Then, tighten the safety screw on the front panel to lock the module in place.
For wiring, connect the Ethernet cable to the RJ45 port for network access. Connect the Modbus serial cable to the second RJ45 port if serial communication is needed. The USB port accepts a standard Mini-B cable for programming with EcoStruxure Machine Expert or Unity Pro software.
After power-up, check the LED indicators on the front panel. These LEDs show module status, communication activity, and fault conditions. If any red LED remains lit, consult the diagnostic documentation.
1x Schneider BMXP342020H Modicon M340 Processor Module
1x Flash Memory Card (BMXRMS008MP)
1x Safety Locking Screw
1x Product Documentation CD
Q1: What makes the BMXP342020H different from the standard BMXP342020?
A: The H suffix indicates conformal coating. This coating protects the PCB from moisture, dust, and corrosive elements in harsh environments.
Q2: What programming software supports this CPU module?
A: The module works with EcoStruxure Machine Expert and Unity Pro. Both platforms support the full instruction set and hardware configuration.
Q3: Can the BMXP342020H handle remote I/O expansion?
A: Yes, it supports three expansion racks. Total capacity reaches 1024 discrete and 256 analog points across all connected racks.
Q4: Which communication protocols does this module support?
A: It supports Modbus TCP/IP over Ethernet and Modbus RTU/ASCII over serial. Optional X80 modules add CANopen and Ethernet/IP capability.
Q5: How does shipping proceed for this module?
A: We ship via Fedex, UPS, and DHL. Packaging uses anti-static materials to protect the coated electronics during transit.
| Brand Name | |
| Model No. | BMXP342020H |
| Product Type | Performance CPU Module |
| hasMerchantReturnPolicy | Adjust according to reality |
| Shippingdetails | Adjust according to reality |
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