1466
15 NETWORK COMMON INSTRUCTIONS
15.1 Link Dedicated Instructions
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. In another station, upon completion of sending the device
data specified by (s2), the device specified by (d3) turns on.
• For the target stations that can be specified, refer to the following.
Page 1449 Target networks and target station types
• 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 SREAD instruction can be checked with the send/receive instruction
flag, the completion device (d2), and the completion status indication device (d2)+1.
CH: Channel
• Completion device (d2)
This device turns on during END processing of the scan where the SREAD 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 SREAD 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 SREAD instruction completes, and turns off during the next
END processing.
SREAD
(d1)
(s2)
·
·
CH1
CHn
CPU module
CPU module
Network module
Network module
[Own station]
[Target station]
Summary of Contents for MELSEC iQ-R Series
Page 1: ...MELSEC iQ R Programming Manual Instructions Standard Functions Function Blocks ...
Page 2: ......
Page 24: ...22 INDEX 2092 INSTRUCTION INDEX 2093 REVISIONS 2104 WARRANTY 2105 TRADEMARKS 2106 ...
Page 34: ...32 MEMO ...
Page 35: ...33 PART 1 PART 1 OVERVIEW This part consists of the following chapter 1 OVERVIEW ...
Page 68: ...66 1 OVERVIEW 1 5 Precautions on Programming MEMO ...
Page 1448: ...1446 14 REDUNDANT SYSTEM INSTRUCTIONS 14 2 Disabling Enabling System Switching MEMO ...
Page 1972: ...1970 33 TIME DATA TYPE FUNCTIONS 33 4 Division MEMO ...
Page 2067: ...APPX Appendix 5 PID Control Program Examples 2065 A 252 Set PID control data for loop 2 ...
Page 2109: ......