Mitsubishi Electric MELIPC MI5000 Series Programming Manual page 56

CCPU_ReadLinkDevice
Reads data from link devices of CC-Link IE Field Network.
Format
short CCPU_ReadLinkDevice(unsigned short usIoNo, short sDevType, unsigned long ulDevNo, unsigned long ulSize,
unsigned short* pusDataBuf, unsigned long ulBufSize)
Argument
Argument
usIoNo
sDevType
ulDevNo
ulSize
pusDataBuf
ulBufSize
Description
• Reads data in the link device of CC-Link IE Field Network after the one specified to the device type (sDevType) and the
start device number (ulDevNo) for the size specified to the data size (ulSize), and stores it to the data storage destination
(pusDataBuf).
• When "0" was specified for the data size (ulSize), a specification size error occurs.
Precautions
Note that the size of data storage destination (ulBufSize) should be equal to or bigger than the data size (ulSize).
Return value
Return value
0(0000H)
-210(FF2EH)
-253(FF03H)
-254(FF02H)
-255(FF01H)
-264(FEF8H)
-28158(9202H)
-28632(9028H)
For details on error codes, refer to the following section.
Page 116 Function error codes
Relevant function
Page 80 CCPU_WriteLinkDevice
3 DETAILS OF FUNCTIONS
54
3.1 C Controller Module Dedicated Functions
Name
Module position
Device type
Start device number
Data size
Data storage destination
Data storage destination size
Description
Normal
Read area size error
Device number specification error
Device type specification error
Size specification error
Pointer error
WDT error
Module position specification error
Description
Specify 0x03E0.
Specify the device type.
Page 8 Device type
Specify the start device number.
(Only multiples of 16 can be specified for bit devices.)
Specify the read data size in word units.
Specify the storage destination of read data.
Specify the data storage destination size in word units.
IN/OUT
IN
IN
IN
IN
OUT
IN