the transfer status, refer to the "17.3 ETSTAT (Acquiring Ethernet Unit Information: FTP/
HTTP/SMTP)" instruction.
■
Processing
● The instruction controls whether to enable, disable, or cancel mail sending for the target [S1]
according to the specification of the control content [S2].
● This instruction can be executed when the Ethernet initialization active flag (X61) is OFF. As
an execution condition of the instruction, insert a program that checks the status of the flag
(X61). If this instruction is executed when the flag (X61) is ON, the system relay SR9 (carry
flag CY) is set and the instruction is terminated without being executed.
● When the instruction is completed successfully, the system relay SR9 (carry flag CY) and the
system data register SD29 (Ethernet communication error code) are cleared.
■
Precautions for programming
● Insert the UNITSEL instruction immediately before this instruction and specify the unit (built-
in ET-LAN in the CPU unit) and the connection number.
● For [S1] and [S2], specify the starting address of the device storing the string data which
indicates the set parameters or a character constant. When specifying a device area for an
operand, set string data using the SSET instruction in advance. However, the ESSET
instruction cannot be used because the format is different.
● Both upper and lower case characters can be used. "Abcd", "ABCD" and "abcd" are all
synonymous.
■
Operand [S1] setting
Setting
item
Settings
S1
Control
target
1) When specifying an individual send
number
Specify "IDx" with x being a value from 0
to 15.
2) When specifying an individual LOG
number
Specify "LOGx" with x being a value from
0 to 15.
3) When specifying all send numbers and
all LOG numbers
Specify "ALL".
■
Operand [S2] setting
Setting
item
Settings
S2
Control
content
1) When enabling sending Specify "ENABLE".
2) When disabling sending Specify "DISABLE".
3) When canceling sending Specify "CANCEL".
Setting example
Settings S1 S2
Exam
ple 1
When enabling the sending of
send number 5
"ID5" "ENABLE"
Exam
ple 2
When disabling all sending "ALL" "DISABLE"
17.27 SMTPcCTL (Mail Transmission Control)
17-140 WUME-FP7CPUPGR-12
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