17.18 HTTPcREQ (HTTP Client Transfer Request)
17.18 HTTPcREQ (HTTP Client Transfer Request)
■
Ladder diagram
(Note 1)
The above figure shows the case that S1=U100 (built-in ET-LAN in the CPU unit) and S2=U1
(connection number 1) are specified by the UNITSEL instruction.
■
List of operands
Operand
Description
S
Device address where the transfer number (0 to 15) is stored, or a constant.
■
Devices that can be specified (indicated by ●)
Operan
d
W
W
X
Y
S
●
●
■
Outline of operation
● This instruction requests the transfer of the HTTP client.
● Before executing this instruction, use the
instruction or the programming tool software "FPWIN GR7" to configure HTTP transfer
settings.
■
Processing
● The transfer request relay of the transfer number that is specified by [S] is turned ON.
● This instruction can be executed when the HTTP client preparation done flag (X68) is ON. As
an execution condition of the instruction, insert a program that checks the status of the flag
(X68). An operation error occurs if this instruction is executed when the flag (X68) is OFF.
● This instruction can be executed when the cable disconnection detection flag (X60) is OFF.
As an execution condition of the instruction, insert a program that checks the status of the
flag (X60). If this instruction is executed when the flag (X60) is ON, the system relay SR9
(carry flag CY) is set and the instruction is terminated without being executed.
● 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
17-94
16-Bit device:
W
W
W
S
D
L
R
L
S
D
T
D
●
●
●
●
32-Bit
device:
TS
TE
U
W
WI
IX
C
C
M
O
S
E
"17.17 HTTPcSET (HTTP Client Transfer Setting)"
Real
St
Integer
numbe
rin
r
g
D
K
H
SF
" "
U
F
●
●
WUME-FP7CPUPGR-12
Index
modifie
r
●