Mitsubishi Electric MELSEC iQ-F Series - Page 95

5 SYSTEM CONFIGURATION
5.3 Structure of CC-Link IE TSN Class B/A Devices (Mixture of CC-Link IE TSN Protocol Version 1.0 and 2.0) and Ethernet Devices
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Setting method
Operating protocol setting
The protocol for operation when a device supporting the CC-Link IE TSN Protocol version 2.0 and a device supporting the
CC-Link IE TSN Protocol version 1.0 coexist in the network can be set with 'Protocol information' (Un\G44320 to Un\G44335)
in the buffer memory. The setting value is enabled after the system is reset or the power is turned off and on, and is held by
the FX5-CCLGN-MS.
For details on the buffer memory, refer to the following.
Page 260 Protocol information (Un\G44320 to Un\G44335)
1. Check the protocol currently held by the FX5-CCLGN-MS with 'Protocol setting status' (Un\G44325).
2. To change the protocol, store the set value in 'Protocol setting' (Un\G44322) and set 'Write request' (Un\G44321) to 1.
3. Check that 'Write execution status' (Un\G44323) is 1 and that 'Setting result' (Un\G44324) is 0. If 'Setting result'
(Un\G44324) is not set to 0, check the error code, and set again.
4. Reset the CPU modules or power off and on the system.
• The operating protocol setting can be performed with the firmware version "1.010" or later of the FX5-
CCLGN-MS.
• The protocol for operation during the initialization sequence is determined and stored in 'Protocol operating
status' (Un\G44320). Alternatively, to change the protocol before resetting the CPU module or turning the
power off and on in step 4, change the write request to 0 before changing the value for the protocol setting.
After changing the value, change 'Write request' (Un\G44321) to 1 again.
Precautions
Set the operating protocol before operating the system, when cables are not connected.
If the setting is changed during system operation, problems such as failure to update a link special relay (SB) or link special
register (SW) may occur temporarily.
Precautions
• For details on troubleshooting by symptom, refer to the following.
Page 210 Troubleshooting by Symptom
• The protocol in operation can be found in 'Protocol operating status' (Un\G44320).
• If the device station used is "CC-Link IE TSN Class A" and "Communication Period Setting" is set to "Low-Speed", sending/
receiving cyclic data within the "Low-Speed" period to/from the device station with "Communication Period Setting" set to
"Low-Speed" cannot be guaranteed depending on the setting values for the maximum response time for the time managed
polling method, communication cycle interval, and low-speed setting. In this case, a communication cycle setting error
(error code: 31ABH) occurs and the FX5-CCLGN-MS stops.
• If "CC-Link IE TSN Class" is "CC-Link IE TSN Class A" and a device station where "Communication Period Setting" is set to
"Low-Speed" exists, parameter values that can guarantee the sending/receiving of cyclic data to/from the device station are
stored in "Multiple cycle setting (low speed)" (Un\G44594) and "Communication cycle intervals (Calculation value)"
(Un\G44595), and in the device station set to "Low-Speed" in "Communication Period Setting" and the "Low-Speed" period.
Set "Multiple Period Setting" to "Low-Speed" and "Communication Period Interval Setting" to a value equal to or greater
than the value stored in "Multiple cycle setting (low speed)" (Un\G44594) and "Communication cycle intervals (Calculation
value)" (Un\G44595).
• When "CC-Link IE TSN Class Setting" of the general CC-Link IE TSN module added to "Network Configuration Settings" is
set to "CC-Link IE TSN Class A", if "Multiple Period Setting" is set to "Low-Speed" and "Communication Period Interval
Setting" are set to 'Multiple period setting (low speed)' (Un\G44594) and 'Communication cycle interval (calculation value)'
(Un\G44595), the cyclic data may not be sent/received. In this case, add the actual device to be used to "Network
Configuration Settings", or refer to the manual for the device used to check the maximum response time for the time
managed polling method and calculate and set the communication cycle interval setting value.