Mitsubishi Electric MELSEC iQ-R Series User Manual page 486

Ethernet P1/2 common information
■Open completion signal (Un\6291456)
Open statuses of connection No.1 to 16 (P1: 1 to 8, P2: 9 to 16) are stored.
• 0: Closed (open not completed)
• 1: Open completed
The value of each bit indicates the connection number.
Address b15
Un\G6291456 16
■Open request signal (Un\6291464)
Open statuses of connection No.1 to 16 (P1: 1 to 8, P2: 9 to 16) are stored.
• 0: No open request
• 1: Requesting open
The value of each bit indicates the connection number.
Address b15
Un\G6291464 16
■Socket reception status signal (Un\6291472)
Receive statuses of connection No.1 to 16 (P1: 1 to 8, P2: 9 to 16) are stored.
• 0: Data not received
• 1: Data reception completed
The value of each bit indicates the connection number.
Address b15
Un\G6291472 16
■Initial status (Un\G6291480)
The initial processing status of the CC-Link IE TSN Plus module Ethernet connection is stored.
[b0]: Initial normal completion status
• 1: Initialization normal completion
• 0: 
[b1]: Initial abnormal completion status
• 1: Initialization abnormal completion
• 0: 
[b2 to b15]: Not used (Use prohibited)
■Initial error code (Un\G6291481)
The information when the initial processing is completed with an error is stored.
• 1 or more: Initialization abnormal code
• 0: In initial processing or initial normal completion
APPX
484
Appendix 3 Buffer Memory
b14 b13 b12 b11
15 14 13 12
b14 b13 b12 b11
15 14 13 12
b14 b13 b12 b11
15 14 13 12
b10 b9 b8 b7
11 10 9 8
b10 b9 b8 b7
11 10 9 8
b10 b9 b8 b7
11 10 9 8
b6 b5 b4 b3
7 6 5 4
b6 b5 b4 b3
7 6 5 4
b6 b5 b4 b3
7 6 5 4
b2 b1 b0
3 2 1
b2 b1 b0
3 2 1
b2 b1 b0
3 2 1