
Offset
Size
Area
Description
59
1
-
reserved
*) For each drive, there is an object dictionary whose structures are identical. Please note that the descriptions always relate to drive 1, unless otherwise noted. To access drive 2,
you have to add 0x1000 to the corresponding object.
n
Object dictionary drive 1: 0x8000 ... 0x8FFF
n
Object dictionary drive 2: 0x9000 ... 0x9FFF
4.12 Acyclic channel
Please note if you write via the Acyclic Channel to objects, which are
mapped in the I/O area, these values are overwritten with the next cycle.
Via the
Acyclic channel
you can perform acyclic read and write commands. For this in the
input/output area of the motion module a data area for the acyclic communication has
been implemented. This area includes 8 bytes output and 8 bytes input data. These have
the following assignment:
Request
Response
Output data
n
Byte 0: CMD - Command
n
Byte 1: SUBIDX - Subindex
n
Byte 2: IDX0 - Index (low byte)
n
Byte 3: IDX1 - Index (high byte)
n
Byte 4: DATA0 - Data (low byte)
n
Byte 5: DATA1 - Data
n
Byte 6: DATA2 - Data
n
Byte 7: DATA3 - Data (high byte)
à
ß
Input data
n
Byte 0: STATUS - Status
n
Byte 1: SUBIDX - Subindex
n
Byte 2: IDX0 - Index (low byte)
n
Byte 3: IDX1 - Index (high byte)
n
Byte 4: DATA0 - Data (low byte)
n
Byte 5: DATA1 - Data
n
Byte 6: DATA2 - Data
n
Byte 7: DATA3 - Data (high byte)
IDLE
à
Request
à
Response
à
IDLE
CMD - Command
Code
Name
Description
0x11
READ_ONCE
Reading a data object
With this command you can request the data once after the command has
been recognized.
0x21
WRITE_ONCE
Writing a data object
With this command data are written only once after the command has
been recognized.
Subindex in the object dictionary
Index in the object dictionary
Overview
SUBIDX - Subindex
IDX0/IDX1 - Index
VIPA System SLIO
Deployment
Acyclic channel
HB300 | FM | 054-1CB00 | en | 18-06
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