Omron CJ1W-SCU22, Руководство по эксплуатации, Страница: 179 / 478

4-43
4 Using Protocol Macros
CJ-series Serial Communications Units Operation Manual for NJ-series CPU Unit(W494)
4-3 Usin
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4-3-2 U
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Send data Word data array
Receive data Word data array
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Operand Settings for the ExecPMCR Instruction
Reading and storing the present value of the node No. 03 E5 @ N.
Variable Item
Description of this
example
Value
SendData[0] Number of send data words Data of 5 words of Send-
Data[0] to SendData[4] are
sent.
WORD#16#0005
SendData[1] Node No. Node No. 3. WORD#16#0003
SendData[2] Variable type + higher 1
byte of read start address In this Present Value Read,
the variable type is
BYTE#16#C0 and read start
address is WORD#16#00. WORD#16#C000
SendData[3] Lower 1 byte of read start
a fixed value of
BYTE#16#00 WORD#16#0000
SendData[4] Number of elements The number of element is 1. WORD#16#0001
Variable Item
Description of this
example
Value
RecvData[0] Number of receive data
words Data of 4 words of Recv-
Data[0] to RecvData[3] are
received. WORD#16#0004
RecvData[1] Response code WORD#16#0000 is returned
for normal end. ---
RecvData[2] Receive data The lower 2 bytes of the
present values of the tem-
perature controller are
returned. ---
RecvData[3] The higher 2 bytes of the
present values of the tem-
perature controller are
returned. ---
Execute
Port
SeqNo
SrcDat
DstDat
InPort
0
SendData[0]
RecvData[0]
ExecPMCR
Done
Busy
Error
ErrorID
ErrorIDEx
DstDat
Input variable Function Setting value
Execute The operation SendCmd is exe-
cuted when 1 is set. ---
Port The destination is specified by
using the Unit number and serial
port number. InPort.UnitNo =
_eUnitNo#_CBU_No02
InPort.PhysicPortNo =
USINT#1
SeqNo Communications sequence No. 0
SrcDat The starting element of the
user-defined variable (array)
that store the command data to
be sent is specified. SendData[0]
DstDat The starting element of the
user-defined variable (array)
that store the data to be
received is specified. RecvData[0]