Schneider Electric Modicon M262 Logic Controller
• 7 remote and 7 local I/O expansion modules
• With a real time clock
• LED signalling
• Dimensions: H100mm x D90mm x W125mm
• Reset time: 200ms automatic reset fast output
• Memory capacity: 32MB for program RAM, 32MB for OS/website RAM, 192MB for system memory RAM
• Maximum leakage current: 10 μA for output
Range Information – Modicon M262
• IL: Instruction List
• ST: Structured Text
• FBD: Function Block Diagram
• SFC: Sequential Function Chart
• LD: Ladder Diagram
EcoStruxure Machine Expert software can also be used to program these controllers using CFC (Continuous Function Chart) language.
Power Supply – The power supply of the M262 Logic/Motion Controller is 24 Vdc
Real-Time Clock – The M262 Logic/Motion Controller includes a Real-Time Clock (RTC) system. The system time is maintained by capacitors when the power is off. The time is maintained for 1 000 hours when the controller is not supplied.
Run/Stop – The M262 Logic/Motion Controller can be operated externally by the following:
• A hardware Run/Stop switch
• A Run/Stop operation by a dedicated digital input, defined in the software configuration. For more information, refer to Configuration of Digital Inputs (see Modicon M262 Logic/Motion Controller, Programming Guide).
• An EcoStruxure Machine Expert software command
• The system variable PLC_W in a Relocation Table
• The Web server
Memory – Three different memory types – RAM, Flash and Non-volatile RAM which suits a variant of uses and comes in different sizes
Embedded Inputs/Output types – Fast inputs and fast source outputs
Encoder – Incremental and SSI encoder modes available
Removable Storage – The M262 Logic/Motion Controllers include an integrated SD card slot. The main uses of the SD card are:
• Initializing the controller with a new application
• Updating the controller and expansion module firmware
• Applying post configuration files to the controller
• Storing recipes, files
• Receiving data logging files
Embedded Communication Features – The Modicon M262 range features embedded communication features, it has Ethernet, USB Mini-B, Serial Line and Sercos communication ports available.
What is a PLC CPU?
A CPU (central processing unit) forms part of the PLC system. PLC CPUs are microprocessor-based and act as the electronic circuitry within an industrial computer. They carry out instructions from the computer program, performing basic mathematical, logical, control, input and output operations.