Mitsubishi Electric MELSEC iQ-R C Programming Manual page 124

CCPU_Y_In_WordEx
This function reads an output signal (Y) in word (16-point) units.
■Format
short CCPU_Y_In_WordEx (short sFlg, unsigned short usYNo, unsigned short usSize, unsigned short* pusDataBuf,
unsigned short usBufSize)
■Argument
Argument Name
sFlg Access flag
usYNo Start output signal
usSize Read data size
pusDataBuf Data storage destination
usBufSize Data storage destination size
■Description
• This function reads an output signal (Y) for the size specified to the read data size (usSize) from the start output signal (Y)
specified to the start output signal (usYNo), and stores it in the data storage destination (pusDataBuf).
• Specify an area size of the data storage destination (pusDataBuf) to the data storage destination size (usBufSize).
• This function operates to the mounted module corresponding to the specified output signal (usYNo) regardless of the type
of the parameter setting (I/O assignment). When the specified area is "empty", this function ends normally without
processing (read data: 0). When it is "input module", the I/O assignment error occurs.
• No error will occur even if this function is executed when the operating status of a CPU module is STOP or PAUSE. An
output signal (Y) is read at execution of this function.
• Read data is stored in the data storage destination (pusDataBuf) in ascending order from the lower bit as shown below.
pusDataBuf
pusDataBuf[0]
pusDataBuf[1]

pusDataBuf[usSize-1]
Precautions
Note that the size of data storage destination (usBufSize) should be equal to or bigger than the read data size (usSize).
■Return value
Return value
0 (0000H)
Other than 0
■Relevant functions
• Page 119 CCPU_X_In_BitEx
• Page 120 CCPU_X_In_WordEx
• Page 123 CCPU_Y_Out_BitEx
• Page 124 CCPU_Y_Out_WordEx
• Page 121 CCPU_Y_In_BitEx
3 DETAILS OF FUNCTION
122
3.1 C Controller Module Dedicated Functions
Description
Specify an access flag.
• 0: Normal access
• Others: Reserved
Specify a start output signal (Y).
(Specify a multiple of 16.)
Specify the read data size in word units.
Specify the storage destination of read data.
Specify the data storage destination size in word units.
Description
Data of usYNo+FH to usYNo
Data of usYNo+1FH to usYNo+10H

Data of usYNo+(usSize-1)16+FH to usYNo+(usSize-1)16
Description
Normal
Error
For details on the error, refer to the following chapter.
Page 174 ERROR CODE LIST
IN/OUT
IN
IN
IN
OUT
IN