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9. Exclusive Commands 1
BUFRCV
- 333 -
Execution conditions
The execution condition for BUFRCV is as shown below.
Command OFF
BUFRCV
ON
Program example
The program to receive data stored in R600 and above with the port No. :6001 and the connection
No.:1.
ZP.BUFRCV
“U20” K1
D120
M260
R600
27
No. of
steps
Command Device
27 LD M302
28 ZP.BUFRCV
"U20"
K1 D120 R600 M260
41
Cautions
(1) Even if the dedicated commands (OPEN, CLOSE, BUFSND, BUFRCV) are executed with the
high-speed PLC, the actual operation will take place at the same timing as the medium-speed
PLC. Thus, the dedicated command should be executed with the medium-speed PLC.
(2) Refer to the BUFRCV command reception buffer after the command is completed. Failure to
observe this could result in malfunctions.
(3) If the connection No. is not within the specified range, an error completion (completion status
C1A6) will occur, but the completion device and completion device +1 will not turn ON.