
3.I/O LINK B-63983EN/02
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3.2 ASSIGNMENT METHOD
To use an I/O device as a slave, assign connection information to X
addresses (input) and Y addresses (output) of the PMC. The machine
tool builder should determine addresses to be used for input/output of
each I/O device in a sequence program. Connection information can
be assigned to these determined addresses using the PMC screen or
FANUC LADDER-III. The information is written in the flash ROM
together with the sequence program. For this reason, the set
information is not changed unless the sequence program is changed.
Information to be set to addresses includes the connection location and
module name of each I/O device.
The connection location of an I/O device is represented by its group,
base, and slot numbers. For the module name, set a name representing
the number of occupied I/O points.
Setting the connection location
I/O devices can roughly be divided into the following three types
according to the method for specifying the connection location.
(1) Type of I/O device whose connection location is specified with
its group, base, and slot numbers
I/O Unit-MODEL A is of this type. Specify the connection
location with its group, base, and slot numbers.
The range of valid settings of each item is as follows:
Group = 0 to 15
Base = 0 and 1
Slot = 1 to 10 (number of a slot on a I/O Unit-MODEL
A base board)
(2) Type of I/O device whose connection location is specified with
its group and slot numbers
I/O Unit-MODEL B and handy machine operator's panels are of
this type. Always set the base number to 0.
The range of valid settings of each item is as follows:
Group = 0 to 15
Base = 0 (Always set 0.)
Slot = 0 to 30 (NOTE)
NOTE
For detailed information on settings, see Subsections
3.2.2 and 3.2.6.