Toshiba V Series, Руководство пользователя

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4.4 Function Block Specifications for EN311 Control
4
4.4.2 URCV_T function block
(1) Parameters
Supplementary information on input parameters
Data structure of request command
(2) Functions
• For the EN311, this is the function block to request module control, TCP/IP protocol,
and/or UDP/IP protocol communication.
• When an execution request(REQ) becomes TRUE(ON) from FALSE(OFF), the N
number of received data words will be routed from receive data P with the contents of
the specified transmission command (CMD).
• The number of received data words, 1-1001 can be specified (It depends on the
socket service command).
• When the reception completes, the completion output(DONE) becomes TRUE(ON) for
one scanning time and the corresponding socket number is displayed on the STATUS.
Communication FB Socket Communication - Send
Diagram
Modification
EN input Put into pulses Index modification
− − −
Parameter Operand Type Constant Description Scope
Input
REQ Boolean Execution request
CMD Pointer
−
Request command
P Pointer
−
Beginning address of the transmit
data storage area
N Unsigned integer Number of data words transmitted 1 to
1001W
Output
DONE Boolean
−
Completion output
ERROR Boolean
−
Error
STATU
S Integer
−
Socket number or error status
F 0
CMD Destination EN311 module slot number
CMD+1 Socket service command
CMD+2 Request parameter
(Details differ according to services.)
:
Com pletion output
Transm it com m and
Num ber of data
words transm itted
Transm it data
Execution request
URC V_T
REQ DO NE
CMD ERRO R
P
STATUS
N
Error
Socket num ber or error status