This product is part of the Modicon M251 range, an offer of logic controllers for modular and distributed architectures. This logic controller provides 7 local, 14 remote I/O expansion modules. It is a Modicon logic controller with a rated supply voltage of 24V DC, an inrush current of 50A and a power consumption of 32.6W to 40.4W. Boost the performance of machine with powerful data transfer via SD Card, embedded web and FTP server and more. Integrated connections are 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 and ethernet port Ethernet 2 with RJ45 connector. It is a Modicon M251 controller with 8MB for program, 64MB for system memory RAM, 128MB built-in flash memory for backup of user programs and a SD card memory capacity of 32GB. It is an IP20 rated product. Its dimensions are 54mm (Width) x 95mm (Depth) x 90mm (Height). It weighs 0.22kg. The Modicon M251 logic controllers are designed for high-performance compact machines incorporating speed and position control functions. This product is certified by CE, CSA and CULus. It meets ANSI/ISA 12-12-01, CSA C22.2 No 142, CSA C22.2 No 213, EN/IEC 61131-22007, marine specification (LR, ABS, DNV, GL), UL 1604 and UL 508 standards. It supports DIN rail mount. Achieve benchmark performance while increasing profitability with the Modicon M251 through intuitive machine programming with SoMachine, ready-to-use applications and function blocks. Increase flexibility, while saving space in your cabinet with the Modicon M251 logic controller for modular and distributed architectures. Specifications Main range of product Modicon M251 Product or component type Logic controller [Us] rated supply voltage 24 V DC Complementary Maximum number of I/O expansion module 7 local 14 remote 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 system memory RAM Data backed up 128 MB built-in flash memory backup of user programs Data storage equipment <= 16 GB SD card optional) Battery type BR2032 lithium non-rechargeable 4 year(s) Backup time 2 years 77 °F (25 °C) Execution time for 1 KInstruction 0.3 ms event and periodic task 0.7 ms 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 77 °F (25 °C) Integrated connection type USB port mini B USB 2.0 Non isolated serial link serial RJ45 RS232/RS485 Dual-port Ethernet 1 RJ45 Ethernet port Ethernet 2 RJ45 Supply Serial)serial link supply 5 V, <200 mA Transmission rate 1.2...115.2 kbit/s (115.2 kbit/s by default) 49.21 ft (15 m) RS485 1.2...115.2 kbit/s (115.2 kbit/s by default) 9.84 ft (3 m) RS232 480 Mbit/s 9.84 ft (3 m) 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 10BASE-T/100BASE-TX - 2 copper cable Ethernet 2 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 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 PWR 1 LED green) RUN 1 LED green) Module error (ERR) 1 LED red) I/O error (I/O) 1 LED red) SD card access (SD) 1 LED green) BAT 1 LED red) Ethernet port activity 1 LED green) SL 1 LED green) Bus fault on TM4 (TM4) 1 LED red) Ethernet activity (ETH1) 1 LED green) Ethernet activity (ETH2) 1 LED green) Electrical connection Removable screw terminal block power supply pitch 5.08 mm) Insulation Non-insulated between supply and internal logic Between supply and ground 500 V AC Marking CE Surge withstand 1 kV shielded cable common mode IEC 61000-4-5 1 kV power lines common mode IEC 61000-4-5 0.5 kV power lines differential mode IEC 61000-4-5 Mounting support Top hat type TH35-15 rail IEC 60715 Top hat type TH35-7.5 rail IEC 60715 plate or panel with fixing kit height 3.54 in (90 mm) Depth 3.74 in (95 mm) Width 2.13 in (54 mm) Net weight 0.49 lb(US) (0.22 kg)