Schneider Electric TM251MESE Modicon M251 logic controller, no embedded I/O, 2 isolated Ethernet ports + 1 serial line.
Schneider Electric TM251MESE Modicon M251 logic controller, no embedded I/O, 2 isolated Ethernet ports + 1 serial line.
| Series | Modicon M251 |
| Digital Inputs | 0 (uses TM3 expansion or remote I/O) |
| Digital Outputs | 0 (uses TM3 expansion or remote I/O) |
| Communication | 2x isolated Ethernet (Modbus TCP, EtherNet/IP), 1x serial (RS232/485) |
| Supply Voltage | 24V DC |
| Expansion | Up to 14 TM3 modules |
| Programming | EcoStruxure Machine (CODESYS) |
| Mounting | 35mm DIN rail or screw plate |
| 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 | 4 cyclic master tasks; 8 event tasks; 3 cyclic master tasks + 1 freewheeling task; 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 1 with RJ45 connector; Ethernet port Ethernet 2 with RJ45 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 1 marking 10BASE-T/100BASE-TX - 2 copper cable; Ethernet 2 marking 10BASE-T/100BASE-TX - 1 copper cable |
| Web services | Web server |
| Communication service | Downloading; IEC VAR ACCESS; Modbus TCP client; Modbus TCP server; Modbus TCP slave device; Monitoring; NGVL; Programming; Updating firmware; SMS notifications; DHCP client (Eth1); DHCP server (Eth2); Ethernet/IP originator (Eth2); Ethernet/IP target (Eth1, Eth2); Ethernet/IP scanner (Eth2); Modbus TCP I/O Scanner and Messaging (Eth2); FDR; 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 |
| Number of server device(s) | 16 EtherNet/IP: ; 64 Modbus TCP: |
| Cycle time | 10 ms 16 EtherNet/IP; 64 ms 64 Modbus TCP |
| 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 SL; 1 LED (red) for bus fault on TM4 (TM4); 1 LED (green) for Ethernet activity (ETH1); 1 LED (green) for Ethernet activity (ETH2) |
| 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 |
| Product 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 |
| Number of Units in Package 1 | 1 |
| Number of Units in Package 2 | 10 |
| Number of Units in Package 3 | 80 |
| Country of origin | ID |
| Warranty (in months) | 18 |
| EAN | 3606480648878 |
| Material | Polycarbonate/ABS housing |
| Temperature range | 0°C to +55°C |
| Primary standard | IEC 61131-2 |
| MOQ | 1 |
Two isolated Ethernet ports for separated control/device networks. TM3 expansion modules supported. EcoStruxure Machine.