Mitsubishi Electric MELSEC iQ-R Series User Manual page 476

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 (1st/N cycle during N cycles) (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 (1st/N cycle during N cycles) (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
Information for ensuring cyclic data are sent/received
■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: Not calculated
• 16, 32, 64, 128: Low speed cycle relative to 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: Not calculated
• 125 to 4294967295: Communication cycle interval (unit: s)
APPX
474
Appendix 3 Buffer Memory