Schneider Electric TM251MESC Modicon M251 Ethernet CANopen Programmable Logic Controller

The Schneider Electric TM251MESC is a Modicon M251 programmable logic controller with dual-port Ethernet and CANopen J1939 (9-way D-Sub) communication, supporting up to 7 local or 14 remote I/O expansion modules. Powered by 24 V DC with a 50 A inrush current and 32.6-40.4 W consumption, it suits compact-to-mid-size machines needing an Ethernet supervisory link alongside a CANopen fieldbus for distributed I/O or drives.

Technical Specifications

Certifications & Standards

• CE
• cULus
• UKCA
• DNV-GL
• ABS
• LR
• ANSI/ISA 12-12-01
• CSA C22.2 No 142
• CSA C22.2 No 213
• IEC 61131-2:2007
• Marine specification
• UL 508

Selection Notes

Choose the TM251MESC when the application needs a hardwired CANopen fieldbus (J1939 9-way D-Sub) for connecting variable speed drives or distributed I/O alongside Ethernet supervision — a task a pure-Ethernet variant cannot perform without an added CANopen communication module. Its 7 local / 14 remote expansion-module ceiling and 50 A inrush current size it for compact-to-mid machines rather than large distributed architectures.