3 FUNCTION LIST
3.3 List of RD77GF Network Function
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3
3.3
List of RD77GF Network Function
Function list of CC-Link IE Field Network
The following table lists the functions of CC-Link IE Field Network. For details on the functions, refer to the following.
MELSEC iQ-R Simple Motion Module User's Manual (Network)
Cyclic transmission
*1 When the software version of the Simple Motion module is "Ver.01":
The set parameter is ignored in the Simple Motion module and operate as "Disable" in station-based units. Assure data using interlock
programs as required.
When the software version of the Simple Motion module is "Ver.02" or later:
To enable data assurance in an asynchronous station, read/write data by direct access in the inter-module synchronous interrupt
program (I44) without using a link refresh.
*2 When the software version of the Simple Motion module is "Ver.01":
The set parameter is ignored in the Simple Motion module and operate as "Hold". Add "Data link status of each station" (SW00B0 to
SW00B7) to an interlock of the program as required.
Transient transmission
RAS
Function
Description
Fixed-cycle communication
The communication cycle of the Simple Motion module is fixed cycle. Communicates with slave modules
in a cycle set in the inter-module synchronization cycle setting.
Communications 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.
Access to devices and
link devices
Link refresh
Automatically transfers data between the link device of the Simple Motion module and the device of the
CPU module
Direct access to link
devices
Directly accesses the link devices of the Simple Motion module from a program.
Cyclic data integrity assurance
Assures the cyclic data integrity in units of 32 bits or station-based units.
Interlink transmission
Transfers data in the link devices of the master station to another network module on a relay station.
Mode selection for cyclic transmission
Selects the mode for optimizing the performance of cyclic transmission based on the cyclic transmission
and transient transmission frequency.
Input status setting for data link faulty station
Selects whether input data from another station where a data link error occurs is cleared or held.
Output status setting for CPU STOP
Selects whether cyclic data output is held or cleared when the CPU module mounted with a Simple
Motion module is set to STOP.
Output status setting for CPU stop error
Selects whether cyclic transmission output is held or cleared when a stop error occurs in the CPU module
which a Simple Motion module is mounted with.
Cyclic transmission stop and restart
Stops the cyclic transmission during debugging and other operations. (Data reception from a slave station
and data sending from the own station are stopped.) Also, the stopped cyclic transmission is restarted.
Transient transmission does not stop.
Function
Description
Communications within the same network
Performs the transient transmission to other stations using dedicated instructions and the engineering
tool.
Communications with different networks
Performs the transient transmission seamlessly to stations on different networks using dedicated
instructions and the engineering tool.
Dedicated instruction
An instruction for using functions of modules. (
MELSEC iQ-R Programming Manual (CPU Module
Instructions, Standard Functions/Function Blocks))
Function
Description
Slave station disconnection (only for
asynchronized stations)
Disconnects only the slave station where an error occurs, and continues the data link with the stations
that are operating normally. In a line topology, all stations connected after the faulty station are
disconnected.
Automatic return
Automatically returns the station disconnected from the network due to a data link error to the network
when it recovers and restarts data link.
