Mitsubishi Electric MELSEC iQ-F Series - Page 259

APPX
Appendix 3 Buffer Memory
257
A
Link special register (SW) (Un\G18944 to Un\G23039)
The SW value is stored.
Timeslot information
Timeslot 0 information (Un\G23552 to Un\G23567)
Cycle start offset (ns, s unit) and cycle end offset (ns, s unit) of timeslot 0 are stored.
Timeslot 1 to 7 information (Un\G23568 to Un\G23679)
Timeslot 1 to 7 information is stored in the same order as Timeslot 0 information.
RX offset/size information
RX offset/size information (Un\G23808 to Un\G24831)
The start number and the number of points of RX for each station are stored.
The buffer memory address for the offset and size of each station number can be calculated using the following formulas:
• Offset buffer memory address = 23808 + (station No.)  4
• Size buffer memory address = 23810 + (station No.)  4
Address b15 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 b0
Un\G18944 SW0
Un\G18945 SW1

Un\G23039 SWFFF
Address Name Description
Un\G23552 to Un\G23553 Cycle start offset (ns unit) The ns digits of cycle start offset are stored.
Stored range: 0 to 999999999ns
Un\G23554 Cycle start offset (s unit) The s digits of cycle start offset are stored.
Stored range: 0 to 65535s
Un\G23555 System area
Un\G23556 to Un\G23557 Cycle end offset (ns unit) The ns digits of cycle end offset are stored.
Stored range: 0 to 999999999ns
Un\G23558 Cycle end offset (s unit) The s digits of cycle end offset are stored.
Stored range: 0 to 65535s
Un\G23559 to Un\G23563 System area
Un\G23564 VID (VLAN Identifier) The VID is stored.
Stored range: 1 to 4094, 65535 (the VID is not used or the relayed frame is not
determined based on the VID)
Un\G23565 PCP (Priotity Code Point) The PCP is stored.
Stored range: 0 to 7, 65535 (the PCP is not used or the relayed frame is not determined
based on the PCP)
Un\G23566 Ether Type The Ether Type of the relayed frame is stored.
Stored range: the Ether Type value of the relayed frame, 65535 (the relayed frame is not
determined based on the Ether Type)
If the timeslot is 0, 65535 is stored.
Un\G23567 System area
Address Description
Un\G23808 to Un\G23809 Station No.0 offset
Un\G23810 to Un\G23811 Station No.0 size (in units of words)
Un\G23812 to Un\G23813 Station No.1 offset
Un\G23814 to Un\G23815 Station No.1 size (in units of words)

Un\G24288 to Un\G24289 Station No.120 offset
Un\G24290 to Un\G24291 Station No.120 size (in units of words)
Un\G24292 to Un\G24831 System area