Mitsubishi Electric MELSEC L Series User Manual page 16

Pages describing instructions are organized as shown below.
The following illustration is for explanation purpose only, and should not be referred to as an actual documentation.
Instruction name
shows the devices
applicable to the instruction
Descriptions of
setting data and data type
Descriptions of
control data (if any)
14
Execution condition of the instruction
Structure of the instruction
in the ladder mode
Setting side
User : Device value is set by the user.
System: Device value is set by
the CPU module.