298
(c) RECV instruction execution timing
When data are stored in a channel of the own station, the corresponding RECV execution request flag
(SB0030 and SB0031) turns on.
Use the flag as a start contact and execute the RECV instruction.
Upon completion of the RECV instruction, the flag turns off.
• When completed
For details on the RECV instruction execution time, refer to the following.
Page 289, Section 10.8 (2) (d)
• When failed
(3) Checking error details
If the dedicated instruction fails, error details can be checked by either of the following methods:
(a) In GX Works2
Error details can be checked using the CC-Link IE Field Network diagnostics. ( Page 206, CHAPTER 9)
(b) Using devices
Completion status indication device ((D2)+1) turns on, and an error code is stored in Completion status
((S1)+1) of the control data.
According to the error code, check the error details and take a corrective action. ( Page 439, Section
12.5)
Number Name
SB0030 RECV execution request flag (1)
SB0031 RECV execution request flag (2)
1 scan
Error code
Arrival timeout
RECV
Sequence scan
RECV execution
request flag (2) (SB0031)
Own station CPU
Master/local module
Completion device
(Device specified in (D2))
Completion status
indication device
(Device of (D2)+1)
Completion status
(Device of (S1)+1)
END0 END0
Channel 2
END0 END0 END0
To Next Page
Loading...
