The M251 Logic Controller has various powerful features and can service a wide range of applications.
Software configuration, programming, and commissioning are achieved with the EcoStruxure Machine Expert software described in the EcoStruxure Machine Expert Programming Guide and in the M251 Logic Controller Programming Guide.
The M251 Logic Controller is configured and programmed with the EcoStruxure Machine Expert software, which supports the following IEC 61131-3 programming languages:
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 this controller using CFC (continuous function chart) language.
The M251 Logic Controller can be operated by the following:
a hardware Run/Stop switch
an EcoStruxure Machine Expert software command
This table describes the different types of memory:
|
Memory Type |
Size |
Used |
|---|---|---|
|
RAM |
64 Mbytes |
To execute the application. |
|
Flash |
128 Mbytes |
To save the program and data in case of a power interruption. |
M251 Logic Controllers include an embedded SD card slot.
The main uses of the SD card are:
Initializing the controller with a new application
Applying recipes
Receiving data logging files
The M251 Logic Controller native communication ports include (depending on the controller reference):
Refer to the compatibility tables in the EcoStruxure Machine Expert - Compatibility and Migration User Guide.