Toshiba T2N - Manual (Page 212)

5. Programming Language
User's manual 199
5.1
Overview
The T2N supports 2 types of programming language for the user
programs - ladder diagram and SFC. Multiple programming languages
can be used in mixed by a single user program by separating blocks of
the program. Thus, the optimum program configuration for the control
functions can be achieved.
(1) Ladder Diagram
This is the language which is core programming language for the T2N.
The program is configured by a combination of relay symbols and
function blocks. This language is suitable for logic control and time control.
Relay Symbols ....These are no contact, NC contact, coil, etc.
Function Blocks ...These are box type instructions which express single
functions. They can be freely positioned in a ladder
diagram network by treating them in a similar way to
relay contacts. The output of one function block can
be connected to the input of another function block.
Example)