Si Device Terminal - Mitsubishi Electric MELSEC-L Series LD40PD01 User Manual

SI device terminal

Outline
In the fifth section in the hardware logic outline window, eight SI device terminals ("SI 0" to "SI 7") are arranged by default.
When a signal is input to an SI device terminal, an interrupt request is output to the CPU module to start an interrupt program.
The interrupt program corresponding to each SI device terminal needs to be set in GX Works2 in advance.
Output
The following table shows the output of the SI device terminal.
Variable name
Output
*1 An SI device terminal can be linked to any of the Output terminals of the multi function counter block Counter_0 to Counter_7.
When multiple SI device terminals are turned to High at the same time, the interrupt programs are started in
order from the program corresponding to the terminal with a smaller number. When multiple SI device
terminals are linked, link the terminals so that terminals corresponding to interrupt programs with higher
priority have smaller numbers.
9 CREATING A HARDWARE LOGIC
126
9.1 Main Blocks in the Hardware Logic Outline Window
Data type Linkable block
Bit Multi function counter
Valid range Description
*1
0, 1 For details on interruption, refer to the following.
Page 169 Setting intelligent function module
interrupt pointers