Mitsubishi Electric MELSEC iQ-R Series Programming Manual page 1467

Operand: (s1)
Device Item
+17 Error-detected station
number
• The continuous area (a maximum of 8192 words) specified by (s1)+9 is required in the read data storage
device (d1).
• The number of resends (s1)+7 must be set every time the instruction is executed.
Description
■When "0" is specified in bit 15 of (s1)+0
The station number of the station where an error was detected is stored. (No
information is stored if an error is detected in the own station.)
[Ethernet or CC-Link IE Controller Network]
• 1 to 120: Station number
[CC-Link IE Field Network]
• 125: Master station
• 1 to 120: Local station, intelligent device station, submaster station
■When "1" is specified in bit 15 of (s1)+0 (Ethernet only)
The IP address (first and second octets) of the station where an error was detected
is stored.
...
b15 b8 b7
• b8 to b15: 1st octet
• b0 to b7: 2nd octet
...
b0
15 NETWORK COMMON INSTRUCTIONS
15.1 Link Dedicated Instructions
Setting range Set by
 System
1465
15