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CHAPTER 15 DEDICATED INSTRUCTIONS
Dedicated instructions facilitate programming for using intelligent function modules. This chapter describes dedicated
instructions that can be used in the E71.
15.1 List of Dedicated Instructions
(1) Dedicated instructions for using basic functions
The following table lists dedicated instructions for using the functions explained in this manual.
(2) Dedicated instructions for using special functions
The following table lists dedicated instructions for using special functions. For details on the dedicated
instructions, refer to the following.
MELSEC-Q/L Ethernet Interface Module User's Manual (Application)
Instruction Description Reference
OPEN
Establishes (opens) a connection with the connected device to perform data
communications.
Page 199, Section 15.5
CLOSE
Disconnects (closes) a connection with the connected device performing data
communications.
Page 203, Section 15.6
ECPRTCL
Executes the protocols registered in the flash ROM of the E71 using the
Predefined Protocol Support Function of GX Works2.
Page 206, Section 15.7
BUFSND
Sends data to the connected device through communications using a fixed
buffer.
Page 216, Section 15.8
BUFRCV
Reads data received from the connected device through communications using
a fixed buffer. (used in the main program)
Page 220, Section 15.9
BUFRCVS
Reads data received from the connected device through communications using
a fixed buffer. (used in an interrupt program)
Page 224, Section 15.10
ERRCLR
Turns off LEDs of the E71 or clears error information stored in the buffer
memory.
Page 226, Section 15.11
ERRRD Reads error information stored in the buffer memory of the E71. Page 230, Section 15.12
UINI Re-initializes the E71. Page 233, Section 15.13
Function Instruction Description
E-mail function
MRECV Reads the received e-mails.
MSEND Sends e-mails.
Communications using
data link instructions
READ Reads word device data from other stations.
RECV Reads data received from other stations. (Used in the main program.)
RECVS Reads data received from other stations. (Used in an interrupt program.)
REQ
Performs remote RUN/STOP to CPU modules on other stations.
Reads/writes the clock data of other stations.
SEND Sends data to other stations.
SREAD Reads word device data from other stations. (with a completion device)
SWRITE Writes word device data to other stations. (with a completion device)
WRITE Writes word device data to other stations.
ZNRD Reads word device data from other stations (ACPU).
ZNWR Writes word device data to other stations (ACPU).
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