Mitsubishi Electric MELSEC iQ-R Series Programming Manual page 1460

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.
Processing details
• These instructions read the data from the specified word device in the target station specified by the target network number
and target station number of the control data or the target station specified by the IP address. Upon completion of reading
the device data, the completion device specified by (d2) turns on.
• For the target stations that can be specified, refer to the following.
Page 1449 Target networks and target station types
[Own station]
CPU module
(d1)
CH: Channel
• When "network number" and "station number" are specified ("0" is specified in bit 15 of (s1)+0) by the target station address
specification method, device data can be read also from stations connected to networks other than the stations connected
to the own station network. (If "IP address" is specified ("1" is specified in bit 15 of (s1)+0), device data cannot be read from
stations connected via a relay station.)
• When executing multiple link dedicated instructions concurrently, be careful not to overlap the channels of the link
dedicated instructions. Multiple link dedicated instructions specifying the same channel cannot be used concurrently.
• The execution status and the completion status of the READ instruction can be checked with the completion device (d2)
and the completion status indication device (d2)+1.
• Completion device (d2)
This device turns on during END processing of the scan where the READ instruction completes, and turns off during the next END processing.
• Completion status indication device (d2)+1
This device turns on or off depending on the completion status of the READ instruction.
When completed successfully: The device remains off.
When completed with an error: The device turns on during END processing of the scan where the READ instruction completes, and turns off during the next
END processing.
15 NETWORK COMMON INSTRUCTIONS
1458
15.1 Link Dedicated Instructions
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 to b15: 1st octet
• b0 to b7: 2nd octet
Network module
CH1
READ
·
CHn
·
...
b8 b7 b0
[Target station]
CPU module
(s2)
Setting range

Network module
Set by
System