Communication functions, Control functions – Yokogawa PC-Based MX100 User Manual

Page 27

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2-4

IM MX190-01E

2.2

Correspondence between the Functions and
Class/Member Functions - MX100 -

This section indicates the correspondence between the functions that the software
supports and the class.

Communication Functions

Function

Class and Member Function

Connect to the MX100.

CDAQMX::open

Disconnect from the MX100.

CDAQMX::close

Set the communication timeout.

CDAQMX::setTimeOut

Note

Setting of the communication timeout is not recommended because unexpected
disconnection may occur due to the conflict with the timeout time when data is retrieved.

Control Functions

Starting/Stopping the FIFO

Function

Class and Member Function

Start the FIFO

CDAQMX::startFIFO

Stop the FIFO

CDAQMX::stopFIFO

Set auto control of the FIFO

CDAQMX::autoFIFO

Other Controls

Function

FIFO

Class and Member Function

Set time information on the MX100 as the

Stop

CDAQMX::setDateTime

number of seconds from the reference
date/time (Jan. 1, 1970).
Turn ON/OFF data saving to the CF card

Continue

CDAQMX::setBackup

(data backup).
CF write mode

Stop

CDAQMXSysInfo:
setCFWriteMode

Format the CF card.

Stop

CDAQMX::formatCF

• Reconfigure the system of the unit.

Stop

CDAQMX::initSystem

• Initialize the system of the unit.

Stop

• Reset alarms (alarm ACK) of the unit.

Continue

The FIFO column in the table indicates the FIFO operation when the function is
executed while FIFO is running.
Stop: The FIFO stops when the function is executed.
Continue: The FIFO continues even when the function is executed.
With the backup settings, the CF write mode represents a partial change of the
collectively obtained data. After changing the data, it must be sent all together.

Note

If the auto control of the FIFO is enabled, the FIFO is automatically resumed when the
FIFO is stopped due to an execution of a function.

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