Mitsubishi Electric MELSEC iQ-R Series User Manual page 242

Grandmaster information
The grandmaster status of the own station and MAC address are stored.
■ Grandmaster (Un\G2875904)
When the own station is the grandmaster, "1" is stored.
• 1: Own station is the grandmaster
• 0: Another station is the grandmaster
■ Grandmaster MAC address (Un\G2875907 to Un\G2875909)
The grandmaster MAC address is stored.
• Un\G2875907: 5th byte, 6th byte of the MAC address
• Un\G2875908: 3rd byte, 4th byte of the MAC address
• Un\G2875909: 1st byte, 2nd byte of the MAC address
Time synchronization setting
■ PTP frame send source check enable/disable (Un\G2875933)
• 1: Check
• 0: Do not check
■ PTP frame send source check result (P1) (Un\G2875934)
• 1: Two or more send sources
• 0: One send source
Communication cycle timing
The timing of the communication cycle is stored.
This area can be used in the inter-module synchronous interruption program (I44).
■ Normal speed (Un\G2877440)
"1" is stored at the timing of the start (first cycle in N cycles)/end (Nth cycle in N cycles) of the basic cycle interval during
normal speed cycle.
[b0]
• 1: Start (first cycle in N cycles)
• 0: Other than start
[bF]
• 1: End (Nth cycle in N cycles)
• 0: Other than end
■ Low speed (Un\G2877441)
"1" is stored at the timing of the start (first cycle in N cycles)/end (Nth cycle in N cycles) of the basic cycle interval during low
speed cycle.
[b0]
• 1: Start (first cycle in N cycles)
• 0: Other than start
[bF]
• 1: End (Nth cycle in N cycles)
• 0: Other than end
APPX
240
Appendix 2 Buffer Memory (When Using the Simple Motion Mode)