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7-41
·
In the case of repetitive actions to issue the RUN command and frequency reference to
the Inverter and read the status of the Inverter, for example, the actions to give the RUN
command and frequency reference is one step. The reason is that these register num-
bers are consecutive and can be sent with a single DSR message. The action to read
the status of the Inverter is another step.
·
A step includes a command and a maximum of two messages.
The above example uses the Send & Recv command. The DSR message and
response are both messages.
·
A step may include the following parameters.
Parameter
Description
Command
The Send, Send & Recv, Wait, Flush, Open (ER-ON),
or Close (ER-OFF) command is set.
Note
In
7-9-4 Creating a Project File
, an example is
shown with the Send & Recv command used.
The Send command is used for a broadcast mes-
sage.
Message
Send message
A DSR message is set for the Send command used.
Message
Recv message
A response is set for the Recv command.
Send & Recv
message
A DSR message and response are set for the Send &
Recv command.
Recv matrix
If there are two or more responses for the Send or
Send & Recv command, the next process is selected
per response.
Repeat counter
The number (N) of times to repeat the step is set
within a range from 0 to 255.
It is possible to change messages by making use of
the number (N).
Note
In
7-9-4 Creating a Project File
, an example is
shown with this function used for enabling three
Slaves to repeat the same process.
No. of retries
The number of times to retry the command can be set
within a range from 0 to 9 only when the Send & Recv
command is used.
Note
It is recommended that the number be set to 3 or
larger.
Send Wait Time
The waiting time until data is sent with the Send or
Send & Recv command executed.
Response Write (with operand
specified)
Determines whether or not to write the reception data
in the response.
Note
In
7-9-4 Creating a Project File
, an example is
shown with this function used for writing the
Inverter status to the memory.
Communications
Chapter 7
Summary of Contents for SYSDRIVE 3G3MV A2002
Page 1: ...USER S MANUAL SYSDRIVE 3G3MV Multi function Compact Inverter Cat No I527 E2 02...
Page 15: ...Chapter 1 Overview 1 1 Function 1 2 Nomenclature 1 3 New Features 1...
Page 24: ...Chapter 2 Design 2 1 Installation 2 2 Wiring 2...
Page 89: ...Chapter 4 Test Run 4 1 Procedure for Test Run 4 2 Operation Example 4...
Page 286: ...Chapter 9 Specifications 9 1 Inverter Specifications 9 2 Option Specifications 9...
Page 311: ...Chapter 10 List of Parameters 10...
Page 342: ...Chapter 11 Using the Inverter for a Motor 11...
Page 348: ...Appendix A Standard Models...