Range of produc

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 slave

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

Warranty

18 months