
55/98
SHEET
DESCRIPTION
DESIGN
DATE
EDIT
01
FANUC LTD.
DRAW.NO.
Matsukura
Newl
re
istered
TITLE:
FANUC CIMPLICITY i CELL
OPERATOR’S MANUAL
05.05.19
B-75074EN/04-2
5.5 CNC CONNECTION
CNC Connection performs CIMPLICITY point input/output by
communicating with CNCs. CNC Connection is used in i CELL and in
CNC Communication Mode.
This section describes the main specifications of CNC Connection.
5.5.1 Read Methods and Read Intervals - Parallel Process and Sequential
Process
There are two methods of reading CIMPLICITY points from CNCs, a
parallel process and a sequential process. A parallel process and a
sequential process cannot be used at the same time. A parallel process and
a sequential process differ as described below.
Parallel process
Read instructions are issued to each CNC at the same time at each read
interval.
This can shorten the time required to read values from multiple CNCs, but
will increase the CPU load at the peak of the read process.
Sequential process
Read instructions are issued to one CNC at a time at each read interval.
This will increase the time required to read values from multiple CNCs, but
can keep the increases in CPU load at the peak of the read process.
Time
Read interval
Parallel
rocess Se
uential
rocess
Time
Read interval
and re
resent the times re
uired to read data from CNCs 1 and 2.
Difference between parallel and sequential processes in reading
(if communicating with two CNCs)
2
1
2
1
2
1 2
1 2 1 2 1 2
1