Time Synchronization Method And Connection Specifications For Network Configuration Devices - Mitsubishi Electric MELSEC iQ-R Series User Manual

Time synchronization method and connection specifications for
network configuration devices
The following table shows references for time synchronization methods and connection specifications based on the protocol
version 2.0 support status of the network configuration devices.
With protocol version 1.0: Includes devices that support protocol version 1.0
Protocol version 2.0 only: Only devices that support protocol version 2.0
None: Operation without time synchronization
Protocol version 1.0/2.0 status of
slave stations
CC-Link IE TSN CC-Link IE TSN
Class A device Class B device
With protocol With protocol
version 1.0 version 1.0
Protocol version 2.0
only
Protocol version 2.0 With protocol
only version 1.0
Protocol version 2.0
only
Precautions
• When the master station is operating with protocol version 2.0, slave stations with protocol version 1.0 may not perform
data link. When a slave station that does not support protocol version 2.0 is detected, the station does not perform data link,
the event code 00C80 is registered on the master station, and the information about the station that does not support it is
stored in 'Station protocol version 2.0 support status' (SW01A0 to SW01A7).
• In the system configuration with a mix of the devices that support the protocol version 2.0 and devices that support the
protocol version 1.0, if the device supporting the protocol version 1.0 delays to join the network because the power-on order
or startup time of the device at the system start-up varies, the master station operates with the protocol version 2.0 and the
device supporting the protocol version 1.0 may not perform a data link. (Event code 00C80 is registered on the master
station.)
• The operating protocol can be checked with 'Protocol operating status' (Un\G1294016).
• If a slave station with firmware version "02" or later and protocol version 1.0 does not perform data link, set
the operating protocol in the buffer memory to operate it with protocol version 1.0 fixed. ( Page 570
Operating protocol setting) Note that, when 'Protocol setting' (Un\G1294018) is set to '1: Protocol version
1.0 fixed', the values of the communication cycle interval and the cyclic transmission time that are stored in
'Communication cycle interval (calculation value)' (SW0072) and 'Cyclic transmission time (calculation
value)' (SW0073) are the values for the operation with the protocol version 1.0. For this reason, if a slave
station that supports the protocol version 2.0 also needs to perform a data link, refer to 'Communication
cycle intervals (calculation value)' (Un\G1277444), 'Cyclic transmission time (calculation value)'
(Un\G1277445) and 'Transient transmission time (calculation value)' (Un\G1277446), and set appropriate
values in "Communication Period Interval Setting", "Cyclic Transmission Time" and "Transient Transmission
Time" in "Communication Period Setting" under "Basic Settings".
Appendix 12 Structure of CC-Link IE TSN Class B/A Devices (Mixture of Protocol Versions 1.0 and 2.0) and Ethernet Devices
Time synchronization method for devices
CC-Link IE TSN Class A device
Protocol Protocol
version 1.0 version 2.0
IEEE1588 None
IEEE1588 None
 None

None
CC-Link IE TSN Class B device
Protocol Protocol
version 1.0 version 2.0
IEEE1588 IEEE1588
 IEEE1588
IEEE802.1AS IEEE802.1AS

IEEE802.1AS
Connection
specifications
reference
Page 552 Structure
of CC-Link IE TSN
Class B/A Devices
(Protocol Version
1.0 Only) and
Ethernet Devices
Page 38 Structure
of CC-Link IE TSN
Class B/A Devices
and Ethernet
Devices
A
APPX
569