Mitsubishi Electric MELSEC iQ-R CC-Link IE TSN, User Manual

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APPX
Appendix 3 Buffer Memory
257
A
Time synchronization setting
■
PTP frame send source check enable/disable (Un\G1275933)
• 1: Check
• 0: Do not check
■ PTP frame send source check result (P1) (Un\G1275934)
• 1: Two or more send sources
• 0: One send source
■
PTP frame send source check result (P2) (Un\G1275935)
• 1: Two or more send sources
• 0: One send source
Communication cycle timing
The communication cycle timing is stored.
This area can be used by an inter-module synchronous interrupt program (I44). In unicast mode, this area cannot be used in
a local station.
■
Normal speed (Un\G1277440)
"1" is stored at the timing of the start (1st cycle during N cycles)/end (N cycle during N cycles) of the basic cycle intervals
during normal speed cycles.
[b0]
• 1: Start (1st cycle during N cycles)
• 0: Other than the start
[bF]
• 1: End (N cycle during N cycles)
• 0: Other than the end
■
Low speed (Un\G1277441)
"1" is stored at the timing of the start (1st cycle during N cycles)/end (N cycle during N cycles) of the basic cycle intervals
during low speed cycles.
[b0]
• 1: Start (1st cycle during N cycles)
• 0: Other than the start
[bF]
• 1: End (N cycle during N cycles)
• 0: Other than the end
Cyclic data send/receive assurance information
■
Multiple cycle setting (low speed) (Un\G1277442)
The setting value of the multiple cycle setting (low speed) that ensures the cyclic data communications (send/receive) is
stored.
This value is stored when a slave station exists for which, under "Basic Settings", "CC-Link IE TSN Class Setting" in
"Connection Device Information" is "CC-Link IE TSN Class A" and "Communication Period Setting" is "Low-Speed".
• 0: Calculation not performed
• 16, 32, 64, 128: Low speed cycle for basic cycle
■ Communication cycle interval (calculation value) (Un\G1277443)
The setting value of the communication cycle interval that ensures the cyclic data communications (send/receive) is stored.
This value is stored when a slave station exists for which, under "Basic Settings", "CC-Link IE TSN Class Setting" in
"Connection Device Information" is "CC-Link IE TSN Class A" and "Communication Period Setting" is "Low-Speed".
• 0: Calculation not performed
• 125 to 4294967295: Communication cycle interval (unit:

s)