Omron CJ1W-MA - REV 10-2008, Operation Manual

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Note Changes in Axis Communications Status Flags
The conditions for setting and resetting the Axis Communications Status
Flags in word n+22 of the Common Operating Memory Area have been
changed accompanying the addition of the rejoin function. New conditions are
underlined in the following table.
With unit version 1.3 or earlier, once MECHATROLINK communications have been started by estab-
lishing connections, the Axis Communications Status Flags will not change unless communications
are disconnected (including Unit errors that required disconnection).
With unit version 2.0 or later, the Axis Communications Status Flags will turn OFF after connections
have been established whenever axis operation becomes impossible due to a communications error
(synchronous communications alarm or communications alarm).
Unit Version 2.0 to Unit Version 2.1
Addition of origin search pre-
set function The preset function cannot be used during
origin searches. The preset function can be used during ori-
gin searches.
For any of the origin search operations the
present position can be automatically set to
any specified value at the end of the origin
search. When using reversal mode 1 and an
absolute encoder, an offset can also be set
for the absolute origin.
(Refer to 8-2-6 Origin Search Preset and 8-6-
2 Absolute Encoder Operating Procedure .)
Functional upgrade Unit version 1.3 or earlier Unit version 2.0 or later
Setting conditions • The flags will turn ON when connections
are made for the axes registered in the
scan list and MECHATROLINK communi-
cations start.
• The flags will turn ON when connections
are made for the axes registered in the
scan list and MECHATROLINK communica-
tions start.
• The flag will turn ON when the rejoin func-
tion is used to start MECHATROLINK com-
munications for an axis registered in the
scan list.
Resetting conditions • The flags will remain OFF when MECHA-
TROLINK communications cannot be
started when connections are made for
the axes registered in the scan list.
• The flags will turn OFF if MECHA-
TROLINK communications stop because
the axis is disconnected.
• The flags will turn OFF if a Unit error
occurs that requires disconnection.
• The flags will remain OFF when MECHA-
TROLINK communications cannot be
started when connections are made for the
axes registered in the scan list.
• The flags will turn OFF if MECHATROLINK
communications stop because the axis is
disconnected.
• The flags will turn OFF if a Unit error occurs
that requires disconnection.
• The flags will turn OFF whenever a commu-
nications error occurs after MECHA-
TROLINK communications have been
started for the axis.
Functional upgrade Unit version 2.0 Unit version 2.1
Faster setting of transfer cycle
and communications cycle when
setting the absolute encoder PG
zero point position offset with an
origin search A longer communications cycle must be
set using the settings given in a separate
table when the absolute encoder PG zero
point position offset is set with an origin
search. The same communications cycle can be
set regardless of whether the absolute
encoder PG zero point position offset is
set with an origin search.
Functional upgrade Unit version 1.3 Unit version 2.0