GE Industrial Solutions 6KCV300lNS - Manual (Page 14)

GEI- 100445
6.7 Process Channel Control
This function allows to assign drive parameters to the Process Data Channel Bytes.
In InterBus-S ring the cards occupy a total of four words (WORD); the first Word (that is 16 Bit)
is represented by the PCP, while the following three are avaliable for the Process Data Channel
(abbreviation PDC).
Representation of the words occupied in InterBus-S ring by the cards :
WORD 1
l l
WORD 2
n
. WORD 3
l l
WORD 4
l
. . . . . . . . . . . . . .
. l l
PDC 1
l
. PDC 2
l l
PDC 3
l
. . . . . . . . ...* . . . . . ...*.....
The card can both read and write the Process Data Channel.
The data read by the card from InterBus-S are referred to as output data; the data written by
the card in Interbus-S are referred to as input data.
l
Process Data
l
Drive parameters
.
.
. . . . . . . . . . . . . . . . . . . . .
.
.
. .
l
*m Input data descriptor
. P r o c e s s .
. C h a n n e l .
l
** Output data descriptor
. Control .
. .
l
-- Output data enable
l .
. . . . . . ..*............
.
l
Process data
l
Drive parameters
.
Assigning the drive parameters to the communication object Input data Descriptor,,, such parameters
are read with cyclicity by the Master.
Assigning the drive parameters to the communication object Output data Descriptor),, the Master
transmits to the Server with cyclicity such parameters.