44
3 FUNCTION LIST
3.3 List of RD77GF Network Function
Diagnostics
Others
*1 When the network synchronization communication is performed with local stations, set the inter-module synchronization cycle to any of
the following.
0.50 ms
1.00 ms
2.00 ms
4.00 ms
For the inter-module synchronization cycle when the network synchronization communication is performed with the slave stations other
than local stations, refer to the manual for the slave station used.
For the setting method of the inter-module synchronization cycle, refer to the following.
MELSEC iQ-R Inter-Module Synchronization Function Reference Manual
Function
Description
CC-Link IE Field Network diagnostics
Checks the status of CC-Link IE Field Network using the engineering tool. The error locations, error
causes, and corrective actions can be checked in the engineering tool.
Diagnostics of own
network
Cable test
Checks the connection status of the Ethernet cables.
Diagnostics of other
network
Communication test
Checks whether the communication route for transient transmission from the own station to the
destination station is correct or not.
IP communication test
Checks whether no error occurs in the communication path when the IP packet transfer function is used.
Function
Description
CC-Link IE Field Network synchronous
communication function
Synchronizes control intervals between slave stations over CC-Link IE Field Network according to
synchronization cycle specified in the master station.
This allows different slave stations on the same network to operate with the same timing.
(
MELSEC iQ-R Inter-Module Synchronization Function Reference Manual)
Reserved station specification
Specifies stations reserved for future use. The reserved stations are not actually connected, but counted
as connected stations. The stations are not detected as faulty stations even though they are not actually
connected.
Temporary cancel of the reserved station setting
(only for asynchronized stations)
Temporarily cancels the reserved station specification without changing the parameters.
Error invalid station and temporary error invalid
station setting
Prevents the master station from detecting a slave station as a faulty station even if the slave station is
disconnected during data link. This function is used to replace a slave station during data link, for
instance.
IP packet transfer function
Enables communications in a protocol such as FTP and HTTP using the specified IP address of an
Ethernet device, over CC-Link IE Field Network. With this function, two networks of CC-Link IE Field
Network and Ethernet are not required, resulting in reduced wiring cost.
Automatic detection of connected devices
Reduces the time of setting parameters by automatically reading information of slave stations.
For details, refer to the following.
(
iQ Sensor Solution Reference Manual)
iQ Sensor Solution data backup/restoration
function
Backs up the setting data of the slave station into the SD memory card of the CPU module on the master
station.
The setting data backed up on the SD memory card of the CPU module on the master station is restored
into the slave module.
For details, refer to the following.
(
MELSEC iQ-R CPU Module User's Manual (Application))
Safety communication function
Establishes a safety connection and enables one-on-one safety communications periodically between
safety stations in the same network.
