Virtual Digital Input/Output Control; Vlrtual Digital Input - GE Profibus - DP Bus Instructions Manual

8. VIRTUAL DIGITAL INPUT/OUTPUT CONTROL
The control of the drive virtual digital I/O is carried out through configuration parameter and parameter for
control sending.
Please note that in this chapter the virtual digital inpks/outputs are referred to the drive, i.e. in these cases the
Master can "Awrite" the virtual digital inputs and "Aread" the virtual digital outputs.
8.1. VIRTUAL DIGITAL INPUT
As to the virtual digital input the parameters involved are:
- Parameter index SEFCh: virtual digital input configuration.
- Parameter index SEFEh: writing of virtual digital input values.
Parameter 5EFCh: 16-element array Unsigned Int.
This array is used to configure the virtual digital input and shall therefore be written before using these inputs.
It contains the drive parameter index assigned to the input. These inputs are then written through the parameter
5EFEh - type Unsigned Int - where the single Bit status indicates the command to be sent to the virtual digital
input. Such command has been previously assigned by means of the configuration array.
Example:
The 0 element of the 5EFCh parameter array contains the 215911 parameter index referred to the DV-300
drive, which means Ramp in = 0.
The operation is the following: after configuring the 0 element of the 5EFCh parameter with the 2159h
parameter index, the DV-300 drive function Ramp
ih
= 0 is controlled by the Bit 0 of the 5EFEh parameter.
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VIRTUAL DIGITAL INPUT/OUTPUT CONTROL