Chapter 3 Function List - Mitsubishi Electric MELSEC iQ-R Series User Manual

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, : Partially available, : Not available
Function
Communications Communications
with other using RX and RY
stations
Communications
using RWr and
RWw
Mode Remote net Ver.1
mode
Remote net Ver.2
mode
Remote device
net Ver.1 mode
Remote device
net Ver.2 mode
Remote I/O net
mode
Link refresh
Cyclic data integrity assurance
Sequence scan synchronization
specification
Setting of the input data from a data
link faulty station
Output data setting for CPU STOP
Data link setting when CPU is down
Data link stop and restart
Remote I/O station points setting
*1 When "Master Station (Duplex Function)" is selected for the station type, this function cannot be used.
*2 When "Master Station (Duplex Function)" is selected for the station type, the setting in which data link is continued is not available.
3 FUNCTION LIST
24
Description
Communicates I/O data in units of bits between the master station and
other stations.
Communicates I/O data in units of words between the master station and
other stations.
The mode can be selected according to the CC-Link system configuration.
Automatically transfers data between the link device of the master/local
module and the device of the CPU module.
Prevents read/write data from being separated between new and old data.
Selects whether link scan is set to asynchronous or synchronous with the
sequence scan of the CPU module.
Selects whether I/O data from a station where a data link error occurs is
cleared or held.
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.
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.
Stops data link during debugging and other operations. (Data sending from
the own station is stopped.) Also, the stopped data link is restarted.
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.)
Availability
Master Local Standby
station station master
station
  
  
*1
 

  
  
  
  
  
*2
 

  
  