Instruction manual for devices of the MASI20 series
V 1.0
9
2.3 Information for the beginner
AS-Interface is a field bus system for industrial application whose advantages include no only its ease of
handling in planning and application but also the good overview of the total system.
To make the system even easier and safer for beginners to use, we recommend proceeding as outlined
in the checklist below:
Work phase
Questions
Note
Planning
How many I/O's are required
in total ?
This determines whether one or more AS-Interface
systems will be needed for realization.
Planning
How great is the system
power requirement ?
Important for the selection of suitable system power
supply units. Never switch AS-Interface power supply
units in parallel !
Planning
How large is the total scope
of the system ?
Repeaters must be used if the sum of all cable lengths
exceeds 100 m.
Configuration How are the modules to be
assigned ?
To avoid addressing errors, create an assignment
scheme and carefully label all addressed modules
accordingly !
Installation
Where will the modules be
installed ?
Depends on the module enclosure type : either in a
switch cabinet or terminal box. Place modules of
enclosure type IP 67 close to sensors and actuators for
the sake of greater efficiency.
Setup
How will the system
configuration be executed ?
In configuration mode (master operating mode) the
detected slave profiles are automatically read in by the
master.
Setup
Have all slaves been
detected by the master ?
When all slaves have been detected, the master should
be switched into protected operating mode.
This enables exhaustive diagnostics.
Setup
How can a simple I/O
function test be performed ?
Quick and straightforward with special, easy to use
setup tools
1
or via the gateway with graphics display.
Alternatively with the PLC Software Tool.
1
e.g. : ASI Control Tools Article No 55717