Yokogawa PC-Based MX100 - Manual (Page 683)

13-14
IM MX190-01E
Description
Overview
Data retrieval is possible by starting the FIFO. The amount of retrievable data within
the FIFO data on channel 1 of the MX100 is retrieved and stored in the field. Gets
the measured value data (one point) of the current status (first measurement point)
and concludes the process.
Communication Connection
comm = openMX100("192.168.1.12", &rc);
The IP address of the MX100 is specified. This statement implicitly specifies the
communication constant DAQMX_COMMPORT (communication port number of the
MX100).
FIFO Start
rc = measStartMX100(comm);
Starts the FIFO on the MX100.
Retrieval of the Measured Data of Channel 1
rc = measDataChMX100(comm, 1);
The amount of retrievable measured data from channel 1 of the MX100 is retrieved
and stored in the field. The first measurement point is set as the current status.
Retrieval of Measured Values
value = dataValueMX100(comm, 1);
Retrieves the measured values of the current status of channel 1 from the field
where the measured data is stored.
FIFO Stop
rc = measStopMX100(comm);
Stops the FIFO.
Comm. cut
rc = closeMX100(comm);
Drops the connection.
Reference
The sample program is completed by executing measDaraChMX100 only once.
Each time the measDataChMX100 is executed, the measurement point advances
by one, and the next data is set as the current status. When the last stored
measurement point is reached, the next retrievable amount of data is retrieved.
13.2 Programming - MX100/Visual C -