90
3 DETAILS OF FUNCTION
3.1 C Controller Module Dedicated Functions
CCPU_ReadLinkDevice
This function reads data from the own station link devices of CC-Link IE Controller Network module, CC-Link IE Field Network
module, Ethernet module (when CC-Link IE Field Network is selected), and MELSECNET/H network module.
■
Format
short CCPU_ReadLinkDevice (unsigned short usIoNo, short sDevType, unsigned long ulDevNo, unsigned long ulSize,
unsigned short* pusDataBuf, unsigned long ulBufSize)
■
Argument
■
Description
This function reads data in a device after one specified to the device type (sDevType) and the start device number (ulDevNo)
for the size specified to the data size (ulSize) from a CC-Link IE Controller Network module, CC-Link IE Field Network
module, Ethernet module (when CC-Link IE Field Network is selected), and MELSECNET/H network module which are
specified to the module position (usIoNo), and stores it in the data storage destination (pusDataBuf).
Precautions
Note that the size of data storage destination (ulBufSize) should be equal to or bigger than the data size (ulSize).
■
Return value
■
Relevant function
• Page 118 CCPU_WriteLinkDevice
Argument
Name
Description
IN/OUT
usIoNo
Module position
Specify the module position as follows.
Start I/O number divided by 16 (0H to FFH)
IN
sDevType
Device type
Specify the device type.
IN
ulDevNo
Start device number
Specify the start device number.
(Only multiples of 16 can be specified for bit devices.)
IN
ulSize
Data size
Specify the read data size in word units.
IN
pusDataBuf
Data storage destination
Specify the storage destination of read data.
OUT
ulBufSize
Data storage destination size
Specify the data storage destination size in word units.
IN
Return value
Description
0 (0000H)
Normal
Other than 0
Error
For details on the error, refer to the following chapter.
Summary of Contents for MELSEC iQ-R C
Page 1: ...MELSEC iQ R C Controller Module Programming Manual ...
Page 2: ......
Page 201: ...I 199 MEMO ...
Page 203: ...I 201 MEMO ...
Page 207: ......