CPU for Severe-Environment Process Control
The Schneider BMEP581020H is a Modicon M580 processor module classified for process control. It draws 270 mA at 24 V DC from the rack backplane, eliminating the need for a separate power supply. The module is built for severe environments: conformal coating, gas resistance class Gx per ISA S71.04, and hazardous location Class I Division 2 approval. Operating temperature spans -25 to 70 °C with 30 gn shock and 3 gn vibration tolerance.
Compliance and Standards – Audit-Ready Documentation
For audit purposes, this CPU carries full compliance with IEC 61131-2, IEC 61010-2-201, UL 61010-2-201, CSA C22.2 No 61010-2-201, and EN/IEC 61850-3. It also meets the ATEX Directive 2014/34/EU, Low Voltage Directive 2014/35/EU, and EMC Directive 2014/30/EU. Environmental resistance covers gas (3C4), dust (3S4), salt (level 2), and fungal spores (3B2) per IEC 60721-3-3. This documentation supports tender submissions where each claimed standard must be evidenced on the datasheet.
Application Fit
The module hosts a DIO scanner and supports up to 64 distributed devices, 36 local application-specific channels, and 4 racks. It runs a single cyclic/periodic master task plus up to 64 event tasks and one fast periodic task. Integrated connections include two Ethernet TCP/IP device network ports, one service port, and a USB mini-B. The IP20 enclosure suits cabinet mounting; use in hazardous locations requires compliance with the installation conditions per the ATEX certificate.
