Mitsubishi Electric MELSEC iQ-R Series Manual page 68

CITL_X_In_Word
This function reads an input signal (X) in word (16-point) units.
■ Format
short CITL_X_In_Word (unsigned short usXNo, unsigned short usSize, unsigned short* pusDataBuf, unsigned short
usBufSize)
■ Argument
Argument
usXNo
usSize
pusDataBuf
usBufSize
■ Description
• This function reads an input signal (X) for the size specified to the read data size (usSize) from a start input signal (X)
specified to the start input signal (usXNo), and stores it in the data storage destination (pusDataBuf).
• Specify the area size of the data storage destination (pusDataBuf) to the data storage destination size (usBufSize).
• When 0x10 is specified to the start input signal (usXNo) and two words are specified to the read data size (usSize), the
CITL_X_In_Word function returns an I/O access size error and the value is not read.
• Read data is stored in the data storage destination (pusDataBuf) in ascending order from the lower bit as shown below.
Storage position
pusDataBuf[0]
pusDataBuf[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 (0000H)
■ Relevant function
Page 65 CITL_X_In_Bit
Page 67 CITL_X_Out_Bit
Page 68 CITL_X_Out_Word
Page 69 CITL_Y_In_Bit
Page 70 CITL_Y_In_Word
3 DETAILS OF FUNCTION
66
3.1 C Intelligent Function Module Dedicated Functions
Name
Start input signal
Read data size
Data storage destination
Data storage destination size
Description
Data of usXNo+FH to usXNo
Data of usXNo+1FH to usXNo+10H
Description
Normal
Error
For details on the error, refer to the following chapter.
Page 108 ERROR CODE LIST
Description
Specify a start input signal (X).
(Only 0x00 and 0x10 can be specified.)
Specify the read data size in word units.
• When start input signal is 0x00: Only 1 and 2 can be specified.
• When start input signal is 0x10: Only 1 can be specified.
Specify the storage destination of read data.
Specify the data storage destination size in word units.
IN/OUT
IN
IN
OUT
IN