Schneider-Electric
TM251MESC

Range of product: Modicon M251

Product or component type: Logic controller

[Us] rated supply voltage: 24 V DC

Maximum number of I/O expansion module: 7 (local I/O-Architecture); 14 (remote I/O-Architecture)

Supply voltage limits: 20.4…28.8 V

Inrush current: 50 A

Power consumption in W: 32.6…40.4 W (with max number of I/O expansion module)

Memory capacity: 64 MB for system memory RAM

Data backed up: 128 MB built-in flash memory for backup of user programs

Data storage equipment: <= 16 GB SD card (optional)

Battery type: BR2032 lithium non-rechargeable, battery life: 4 year(s)

Backup time: 2 years at 25 °C

Execution time for 1 KInstruction: 0.3 ms for event and periodic task; 0.7 ms for other instruction

Application structure: 3 cyclic master tasks + 1 freewheeling task; 8 event tasks; 4 cyclic master tasks; 8 external event tasks

Realtime clock: With

Clock drift: <= 60 s/month at 25 °C

Integrated connection type: USB port with mini B USB 2.0 connector; Non isolated serial link serial with RJ45 connector and RS232/RS485 interface ; Dual-port Ethernet with RJ45 connector; CANopen J1939 with SUB-D 9 connector

Supply: (serial)serial link supply: 5 V, <200 mA

Transmission rate: 1.2...115.2 kbit/s (115.2 kbit/s by default) for bus length of 15 m for RS485; 1.2...115.2 kbit/s (115.2 kbit/s by default) for bus length of 3 m for RS232; 480 Mbit/s for bus length of 3 m for USB

Communication port protocol: USB port: USB - SoMachine-Network; Non isolated serial link: Modbus master/slave - RTU/ASCII or SoMachine-Network

Port Ethernet: Ethernet marking 10BASE-T/100BASE-TX - 2 copper cable

Web services: Web server

Communication service: DHCP client; Downloading; Ethernet/IP slave device; IEC VAR ACCESS; Modbus TCP client; Modbus TCP server; Modbus TCP slave device; Monitoring; NGVL; Programming; Updating firmware; SMS notifications; FTP client/server; SNMP client/server; SQL client; Send and receive email from the controller based on TCP/UDP library; Web server (WebVisu & XWeb system); OPC UA server; DNS client

Maximum number of connections: 8 Modbus server; 8 Modbus client; 16 Ethernet/IP target; 4 FTP server; 10 web server; 8 SoMachine protocol

CANopen feature profile: DR 303-1; DS 301 V4.02

Number of server device(s): 63 CANopen:

Local signalling: 1 LED (green) for PWR; 1 LED (green) for RUN; 1 LED (red) for module error (ERR); 1 LED (red) for I/O error (I/O); 1 LED (green) for SD card access (SD); 1 LED (red) for BAT; 1 LED (green) for Ethernet port activity; 1 LED (green) for SL; 1 LED (red) for bus fault on TM4 (TM4); 1 LED (green) for CANopen run; 1 LED (green) for CANopen error

Electrical connection: removable screw terminal blockpower supply (pitch 5.08 mm)

Insulation: Non-insulated between supply and internal logic; Between supply and ground at 500 V AC

Marking: CE

Surge withstand: 1 kV shielded cable common mode conforming to IEC 61000-4-5; 1 kV power lines common mode conforming to IEC 61000-4-5; 0.5 kV power lines differential mode conforming to IEC 61000-4-5

Mounting support: Top hat type TH35-15 rail conforming to IEC 60715; Top hat type TH35-7.5 rail conforming to IEC 60715; plate or panel with fixing kit

Height: 90 mm

Depth: 95 mm

Width: 54 mm

Net weight: 0.22 kg

Standards: ANSI/ISA 12-12-01; CSA C22.2 No 142; CSA C22.2 No 213; IEC 61131-2:2007; Marine specification (LR, ABS, DNV, GL); UL 508

Product certifications: cULus; CE; UKCA; DNV-GL; ABS; LR

Resistance to electrostatic discharge: 8 kV in air conforming to IEC 61000-4-2; 4 kV on contact conforming to IEC 61000-4-2

Resistance to electromagnetic fields: 10 V/m 80 MHz...1 GHz conforming to IEC 61000-4-3; 3 V/m 1.4 GHz...2 GHz conforming to IEC 61000-4-3; 1 V/m 2 GHz...3 GHz conforming to IEC 61000-4-3

Resistance to fast transients: 2 kV (power lines) conforming to IEC 61000-4-4; 1 kV (Ethernet line) conforming to IEC 61000-4-4; 1 kV (serial link) conforming to IEC 61000-4-4

Resistance to conducted disturbances: 10 V 0.15...80 MHz conforming to IEC 61000-4-6; 3 V 0.1...80 MHz conforming to Marine specification (LR, ABS, DNV, GL); 10 V spot frequency (2, 3, 4, 6.2, 8.2, 12.6, 16.5, 18.8, 22, 25 MHz) conforming to Marine specification (LR, ABS, DNV, GL)

Electromagnetic emission: Conducted emissions - test level: 120...69 dBµV/m QP ( power lines) at 10…150 kHz conforming to IEC 55011; Conducted emissions - test level: 63 dBμV/m QP ( power lines) at 1.5…30 MHz conforming to IEC 55011; Radiated emissions - test level: 40 dBμV/m QP class A ( 10 m) at 30…230 MHz conforming to IEC 55011; Conducted emissions - test level: 79...63 dBμV/m QP ( power lines) at 150…1500 kHz conforming to IEC 55011; Radiated emissions - test level: 47 dBμV/m QP class A ( 10 m) at 230…1000 MHz conforming to IEC 55011

Immunity to microbreaks: 10 ms

Ambient air temperature for operation: -10…35 °C (vertical installation); -10…55 °C (horizontal installation)

Ambient air temperature for storage: -25…70 °C

Relative humidity: 10…95 %, without condensation (in operation); 10…95 %, without condensation (in storage)

IP degree of protection: IP20 with protective cover in place

Pollution degree: 2

Operating altitude: 0...2000 m

Storage altitude: 0…3000 m

Vibration resistance: 3.5 mm at 5…8.4 Hz on symmetrical rail; 3 gn at 8.4…150 Hz on symmetrical rail; 3.5 mm at 5…8.4 Hz on panel mounting; 3 gn at 8.4…150 Hz on panel mounting

Shock resistance: 15 gn for 11 ms

Unit Type of Package 1: PCE

Number of Units in Package 1: 1

Package 1 Height: 10.632 cm

Package 1 Width: 11.868 cm

Package 1 Length: 16.721 cm

Package 1 Weight: 380.0 g

Unit Type of Package 2: S03

Number of Units in Package 2: 10

Package 2 Height: 30 cm

Package 2 Width: 30 cm

Package 2 Length: 40 cm

Package 2 Weight: 4.461 kg

Unit Type of Package 3: P06

Number of Units in Package 3: 80

Package 3 Height: 75.0 cm

Package 3 Width: 40.0 cm

Package 3 Length: 80.0 cm

Package 3 Weight: 43 kg

Sustainable offer status: Green Premium product

REACh Regulation: Reference contains Substances of Very High Concern above the threshold

EU RoHS Directive: Pro-active compliance (Product out of EU RoHS legal scope)

Mercury free: Yes

China RoHS Regulation: X

RoHS exemption information: Yes

Environmental Disclosure: ENVPEP1401009EN

Circularity Profile: ENVEOLI1401009EN

WEEE: The product must be disposed on European Union markets following specific waste collection and never end up in rubbish bins