Parameter Transfer; Two-Way Communication; Example : Data Send In Response To Send Request To The Instrument; One-Way Communication - Casio PX-330 User Manual

17

Parameter Transfer

There are two parameter operations: Individual Parameter Transfer and Individual Parameter Request.
A single session is concluded only when this Instrument returns an IPS (Individual Parameter Send) in response to an
IPR (Individual Parameter Request) from an external device, or when an external device or this Instrument spontaneously
sends an IPS. If this Instrument received an IPS, the value of the applicable parameter is changed.
Depending on the function of a parameter, Individual Parameter Send may be used to issue a command to the Instrument
or Individual Parameter Request may be used to check Instrument status information.
17.1

Two-way Communication

17.1.1

Example : Data send in response to send request to the Instrument

Data Receiver
IPR 
 IPS
17.2

One-way Communication

17.2.1

Example : Data send to Instrument from external source

Data Sender
 IPS
17.2.2

Example : Data send resulting from Instrument operation

Data Receiver
 IPS
Data Sender
Data Receiver
Data Sender
Operation
Send Request
Data Transfer
Operation
Data Transfer
Operation
Data Transfer
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