Mitsubishi Electric MELDAS 60 Series Programming Manual page 264

9.7.4 Occupied number of stations of the system and settable range of the device
The device range allocated for CC-Link remote I/O (RX, RY) and remote register (RWw, RWr) varies
depending on the number of occupied stations (actual number of link points) set per system.
In order to operation NC and CC-Link, set within the designated range.
RX,RY,SB RWr,RWw,SW
RX only
RY only
<Example> Setting range when the occupied number of stations is 30 per one CC-Link system:
Actual number of remote input/output points (actual number of link points): Occupied number of
stations(30)*32=960 points
Setting range of RX and RY when they are set (in the order of RX, and then RY) with M devices:
RY device: M0 to M7232 (M8192 – actual number of link points(960)=M7232)
RX device: M0 to M6272 (M7232 – actual number of link points(960)=M6272)
(Note 1) NC or PLC ladder does not operate normally when the device area secured for CC-Link is
duplicated with the actual machine input/output signal used by the NC or machine side or
when it is outside the range indicated above. When the NC does not start normally, reduce
the number of connections or set the station No. to a smaller one so that the actual number of
link points is reduced and the device area falls in the range indicated in the table above. Then,
restart the NC and set the CC-Link parameters again.
(Note 2) When changing CC-Link system configuration, always confirm that the parameters of all the
NCs connected with CC-Link is within the range.
Settable
device name
— X
Y
—
M
L
D
R
Settable device range
<Area 1>
Min. : X0
Max. : X140 -actual number of link points
<Area 2>
Min. : X640
Max. : X740 - actual number of link points
<Area 1>
Min.: Y0
Max.: Y140 - actual number of link points
<Area 2>
Min.: Y740
Max.: Y840 - actual number of link points
Min.: M0
Max.: M8192 - actual number of link points
Min.: L0
Max.: L256 - actual number of link points
Min.: D0
Max.: D1024 - actual number of link points
<Area 1>
Min.: R500
Max.: R550 - actual number of link points
<Area 2>
Min.: R1900
Max.: R2800 – actual number of link points
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9. Exclusive Commands