Modicon M251 Plc Page 10 Modicon M251 logic controllers

10 Description, characteristics Modicon M251 logic controllers Description M251 controllers 1 Removable screw terminal block, 3 terminals for connecting the 24 V c power supply 2 2 RJ45 connectors connected by an internal switch for Machine or Factory Ethernet network, with speed and activity LED 3 On TM251MESE controller: RJ45 connector for fieldbus Ethernet 2 network with speed and activity LED 4 On TM251MESC controller: 9-way SUB-D connector for link to CANopen and SAE J1939 machine bus 5 Serial link port SL (RS232 or RS485): RJ45 connector 6 Run/Stop switch 7 TM4 bus connector: communication bus for the link with TM4TM4 ppp communication modules 8 QR code for accessing the controller technical documentation 9 Modicon TM3 bus connector for link with a Modicon TM3 expansion module 10 LED display block showing the status of the controller and its components (battery, industrial SD memory card), the status of the embedded communication ports (Ethernet 1 and 2, CANopen, serial link) Behind the removable cover: 11, 12, 13 11 Industrial SD memory card slot 12 Backup battery slot 13 Mini-B USB connector for a programming terminal 14 Lugs for screw mounting on panel 15 Clip for locking onto 5 symmetrical rail. Characteristics of M251 logic controllers Conformity b Certification v e , Listing Mark, C-Tick, EAC, LR, ABS, DNV, and GL v ODVA and Achilles b Standards v IEC/EN 61131-2 (Edition 2 2007), UL508 (UL61010-2-201), v ANSI/ISA 12.12.01-2007, CSA C22.2 No.213, No.142, E61131-2, and IACS E10 Environmental characteristics v Ambient operating temperature: -10...+55 C (+14...+131 F) v Storage temperature: -40...+70 C (-40...+158 F) v Relative humidity: 5...95% (non-condensing) Operating altitude: v 0...2,000 m (0...6,562 ft) full specification for temperature and solar radiation v 2,0004,000 m (6,56213,123 ft): - temperature derating: + 1 C/400 m (+ 1.8 F/1,312 ft.) - insulation losses: 150 V c /1,000 m (150 V c /3,280 ft.) v Storage altitude: 0...3,000 m (0...9,842 ft) v Immunity to mechanical stress: - For 1131: 5...8.4 Hz (amplitude 3.5 mm/ 0.138 in. ); 8.4...150 Hz (acceleration 1 g) - For merchant marine: 513.2 Hz (amplitude 1.0 mm /0.039 in. ) ; 13.2...100 Hz (acceleration 0.7 g) Power supply characteristics v 24 V c power supply v Voltage limit (including ripple): 19.2...28.8 V c v Immunity to micro-cuts (class PS-2): 10 ms v Max. consumption: 45 W 1 2 3 14 5 6 7 8 9 10 11 12 13 15 TM251MESE controller 14 TM251MESC controller 4 1 2 5 6 7 8 9 10 15 11 12 13 2 1 3 4 5 6 7 8 9 10 2 1 3 4 5 6 7 8 9 10

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