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Foreword 
The 
AIS 
handy manual 
is 
designed as a learning aid for use with the MELSEC 
AIS 
programmable logic controller 
(PLC) 
and is aimed at the first time 
AIS 
user. Topics 
covered in this  manual include  unit  selection, system configuration, installation, 
programming, and application examples. 
It is hoped that after reading this, you will have a good understanding of the 
AIS 
PLC system, and be able to set up and use an AIS PLC system without the need 
of 
training 
or 
the study 
of 
individual manuals. However, please note that not all the 
details 
of 
the 
AIS 
PLC 
are  contained in this handy manual and therefore where 
appropriate you should refer to the relevant user's or programming manual. 
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