Cdaqmx::runpacket, Cdaqmx::searchchno – Yokogawa PC-Based MX100 User Manual

Page 83

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2-60

IM MX190-01E

CDAQMX::runPacket

Syntax

virtual int runPacket(unsigned char * reqBuf, int lenReq,
unsigned char * ackBuf, int lenAck);

Parameters

reqBuf

Specify the request packet using a byte array.

lenReq

Specify the byte size of the request packet.

ackBuf

Specify the field where the response packet is to be stored using

a byte array.

lenAck

Specify the byte size of the response packet.

Description

Sends the specified request packet and receives the response packet. The
response packet is stored in the specified field. This is a member provided for non-

standard packets. The packets must be processed on the user side.
The use of a timeout is not recommended.

Return value

Returns an error number.

Reference

receiveBuffer send

CDAQMX::searchChNo

Syntax

int searchChNo(int fifoNo, int fifoIndex);

Parameters

fifoNo

Specify the FIFO number.

fifoIndex

Specify the channel sequence number in the FIFO.

Description

Searches for the channel number corresponding to the specified value from the

information stored in the data member.
Returns 0 if it does not exist.

Return value

Returns the channel number.

2.5 Details of the MX100 Class

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