Description
VMIVME-7698-345 350-017698-345 B Sequence Function Diagram
VMIVME-7698-345 350-017698-345 B On-line programming method: CPU and programmer have their own CPUs, the host CPU is responsible for the field control and exchanges data with the programmer in one scan cycle, the programmer sends the program or data prepared on-line to the host, and the host runs according to the newly received program in the next scan cycle. This approach is more costly, but the system is easy to debug and operate, and is often used in large and medium-sized PLCs.
VMIVME-7698-345 350-017698-345 B Five standardized programming languages: three graphical languages, Sequential Function Chart (SFC), Ladder Diagram (LD) and Function Block Diagram (FBD), and two textual languages, Interpretation List (IL) and Structured Text (ST). The selected programming language should comply with its standard (IEC6113123), at the same time, should also support a variety of language programming forms, such as C, Basic, etc., in order to meet the control requirements of special control occasions.
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