Filter
Top Products
24
3 FUNCTION LIST
3 FUNCTION LIST
Cyclic transmission
This section describes the functions of the CC-Link system. For details on the functions, refer to the following.
MELSEC iQ-R CC-Link System Master/Local Module User's Manual (Application)
: Available, : Not available
Function Description Availability
Master
station
Local
station
Standby
master
station
Communic
ations with
other
stations
Communications using
RX and RY
Communicates I/O data in units of bits between the master station and
other stations.
Communications using
RWr and RWw
Communicates I/O data in units of words between the master station and
other stations.
Mode Remote net Ver.1 mode The mode can be selected according to the CC-Link system configuration.
Remote net Ver.2 mode
Remote device net Ver.1
mode
Remote device net Ver.2
mode
Remote I/O net mode
Link refresh Automatically transfers data between the link device of the master/local
module and the device of the CPU module.
Cyclic data integrity assurance Prevents read/write data from being separated between new and old data.
Sequence scan synchronization
specification
Selects whether link scan is set to asynchronous or synchronous with the
sequence scan of the CPU module.
Setting of the input data from a data
link faulty station
Selects whether I/O data from a station where a data link error occurs is
cleared or held.
Output data setting for CPU STOP Selects whether remote output (RY) is refreshed (held at the value before
STOP) or cleared to zero (0) when the CPU module is set to STOP.
Data link setting when CPU is down Selects whether data link is stopped or continued when a stop error occurs
in the CPU module which a master/local module is mounted with.
Data link stop and restart Stops data link during debugging and other operations. (Data sending from
the own station is stopped.) Also, the stopped data link is restarted.
Remote I/O station points setting Selects the number of refresh points with a remote I/O station from 8 points,
16 points, and 32 points when the master station is in the remote net Ver.2
mode or remote device net Ver.2 mode. Changing the number of points can
save the areas of the refresh device in a CPU module. (In modes other than
the remote net Ver.2 mode and remote device net Ver.2 mode, only 32
points per station can be selected.)