Product Overview
The Schneider BMXP341000 is a Standard CPU module from the Modicon M340 automation platform. It handles process control, machine sequencing and data handling for industrial systems. This Level 1 CPU suits small to medium architectures that need solid logic performance without the cost of a higher-tier controller.
Schneider Electric discontinued this module on 2020-11-01. Buyers should plan a migration path to the M580 or a current M340 range CPU. Oil AutoTech helps you source remaining stock or identify the right replacement, with fast dispatch, worldwide.
Technical Specifications
The ARM9 processor runs at 110 MHz. Program memory reaches 1792 KB for application code, symbols and comments. Data memory adds 128 KB for data and constants, while total internal RAM is 2048 KB. Scan speed hits 5.4 Kinst/ms for 100% boolean logic and 4.2 Kinst/ms for mixed instructions. These figures support responsive control of fast machine cycles.
I/O capacity covers up to 512 discrete points and 128 analog points. The CPU fits 4, 6, 8 and 12-slot X80 racks, with one main rack and one expansion rack. Power comes from the backplane at 24 V DC, drawing 2.2 W and 90 mA bus current. The IP20 housing measures 100 × 28 × 93 mm and weighs 0.200 kg.
Communication and Integration
One Modbus Serial port (RJ45, RS232/RS485 non-isolated) and one USB Mini-B port come built in. The CPU speaks Modbus Serial RTU/ASCII and character mode. For wider networks, optional X80 communication modules add Modbus serial, CANopen, Ethernet/IP or extra serial links.
Integration Note
Wiring into fieldbus networks may require an external gateway or connection module. Confirm cables and gateways with your supplier before commissioning.
Buyer’s Guide: Evaluating the BMXP341000
Check your rack type first. This CPU works only with X80 racks in 4, 6, 8 or 12-slot sizes. Verify your I/O count stays within 512 discrete and 128 analog points. Confirm your panel supplies 24 V DC through the backplane.
Match the programming environment. EcoStruxure Machine Expert (Unity Pro) handles configuration and code. If your team already uses this software, migration effort stays low. If not, factor in training time.
Because Schneider discontinued the module, weigh two paths. Buying remaining stock keeps your existing M340 system running with no re-engineering. Migrating to M580 or a current M340 CPU brings longer support but needs new configuration work. Oil AutoTech offers hands-on technical selection help to compare both options against your timeline and budget.
Installation and Setup
Mount the module in a compatible X80 rack and secure it properly. Connect the backplane for 24 V DC supply. Wire the Modbus serial port to your network or programming device. Keep the cabinet within 0°C to +60°C and 5% to 95% relative humidity, non-condensing. The IP20 rating means the module belongs inside a protected enclosure. Follow Schneider’s installation manual for torque and grounding details.
Maintenance and Reliability
The BMXP341000 has no moving parts, so wear points stay minimal. Inspect connections periodically and check for dust buildup in the cabinet. Keep ambient temperature within the rated range to protect the ARM9 processor and memory. For safety-related functions, follow the manufacturer’s safety manual and inspect at scheduled intervals.
Industry Applications
Oil and gas facilities often run M340 racks for pump control, valve sequencing and tank monitoring. This CPU’s Modbus serial port links directly to legacy field devices, which simplifies integration in older plants. A refinery upgrading its control room may keep M340 CPUs in service while planning a phased move to M580.
Water treatment plants use the discrete and analog capacity for dosing pumps and level sensors. Manufacturing lines rely on the scan speed for fast boolean logic in packaging and assembly cells. In each case, keeping a spare CPU on the shelf prevents costly downtime. Oil AutoTech supplies ready-to-ship spares for these scenarios.
Frequently Asked Questions
Is the BMXP341000 still in production?
No. Schneider Electric discontinued it on 2020-11-01. Contact Oil AutoTech for availability and replacement options.
What software programs this CPU?
EcoStruxure Machine Expert (Unity Pro) handles configuration and programming.
Which racks does it support?
It fits X80 racks with 4, 6, 8 or 12 slots, using one main rack and one expansion rack.
Can I add Ethernet or CANopen?
Yes, through optional X80 communication modules. The built-in ports cover Modbus Serial and USB only.
What are the power requirements?
The module draws 24 V DC from the backplane, consuming 2.2 W at 90 mA bus current.
