Schneider Electric BMEP581020H Modicon M580 Processor Module

Configured for Ethernet-based processor control and local I/O management in the Modicon M580 platform, the Schneider Electric BMEP581020H (BMEP581020H processor module) provides rack-level processing, Ethernet communication, and distributed I/O management. It supports up to 4 racks, 1024 discrete local I/O channels, 256 analog local I/O channels, and 64 distributed devices. The processor has 4 MB program RAM, 384 kB data RAM, and expandable 4 GB flash storage.

Hardware Specifications

Ethernet Processing and I/O Architecture

The BMEP581020H provides one Ethernet TCP/IP service port and two Ethernet TCP/IP device-network interfaces. The processor also supports an Ethernet HSBY interface and USB Type Mini-B connectivity according to the supplied product description. Its I/O processing capacity is 1024 discrete and 256 analog channels across the local configuration, with support for up to 64 distributed devices.

The processor supports application-specific functions including serial link, counter, accurate time stamping, motion control, SSI encoder, and HART interfaces. The application execution structure includes one cyclic/periodic master task, one periodic fast task, 64 event tasks, and two auxiliary tasks.

The severe-environment version uses conformal coating and is specified for gas, dust, sand, salt, mold, and fungal-spore resistance under the stated environmental classifications. The specified operating range is -25 to 70 deg C.

Frequently Asked Questions

Q: What rack-level power connection does the BMEP581020H use?
A: The processor receives its power through the rack internal power supply. The stated processor current consumption is 270 mA at 24 VDC.

Q: How many local I/O channels can the processor manage?
A: The BMEP581020H supports up to 1024 discrete local I/O channels and 256 analog local I/O channels, with a maximum of 4 racks.

Q: What Ethernet interfaces are provided?
A: The processor provides one Ethernet TCP/IP service port and two Ethernet TCP/IP device-network ports. The supplied description also identifies an Ethernet HSBY connection.

Field Installation Guidelines

Install the processor in the specified Modicon M580 rack and ensure that the module is correctly seated on the rack connector before energizing the system. Because the unit is IP20, the installation enclosure should provide the required protection against conductive dust, liquids, and accidental contact.

Route Ethernet communication cables separately from high-current power conductors and switching circuits where practical. Maintain appropriate cable shielding and grounding practices for the selected Ethernet installation. Verify rack power availability before inserting or replacing the processor.

For severe-environment installations, maintain the environmental limits stated for temperature, humidity, vibration, shock, altitude, and atmospheric contaminants. Check the processor RUN, ERR, I/O, DL, BACKUP, ETH MS, and ETH NS indicators during commissioning to identify processor, memory, I/O, and Ethernet status conditions.