6ć38 – Rockwell Automation 6008-SV2R VMEbus remote I/O Scanner User Manual
Page 119
Chapter
Operating in SVĆSuperset Mode
6
6Ć38
The VME master processor writes 06 (hex) to the command byte. Then
the VME master processor writes these parameters to the control status
area of the selected channel:
Byte
offset:
Parameter: Description:
0207
continuous blockĆtransfer address
The module address is the address of the I/O module from which to read the
block data. It contains the rack (0-15), group (0-7), and slot (0 or 1) numbers of
the I/O module. See Figure 6.15 on page 6Ć39.
0209
continuous blockĆtransfer tag
The VME master processor writes a number (0-31) that is an index into the
continuous block transfer read table. Only the lower byte is used.
020A
continuous blockĆtransfer
status ID
Specifies the interrupt status ID used when the blockĆtransfer is completed. See
Figure 6.16 on page 6Ć39.
020B
continuous blockĆtransfer
interrupt level
Specifies the VME interrupt level used when the blockĆtransfer is completed. See
Figure 6.16 on page 6Ć39.
021F
continuous blockĆtransfer
length of data
The VME master processor writes the number of words of continuous
blockĆtransfer data (0-64).
Use the value 0 to let the I/O module determine how many words the scanner can
read. When the blockĆtransfer completes, the 0 is replaced by the actual number
of words read.
0C01
continuous blockĆtransfer tag
READ ONLY
configure this parameter at byte offset 0209 (see above)
0C03
continuous blockĆtransfer address
READ ONLY
configure this parameter at byte offset 0207 (see above)
0C05
continuous blockĆtransfer
length of data
READ ONLY
configure this parameter at byte offset 021F (see above)
0C06
continuous blockĆtransfer
status ID
READ ONLY
configure this parameter at byte offset 020A (see above)
0C07
continuous blockĆtransfer
interrupt level
READ ONLY
configure this parameter at byte offset 020B (see above)
0C09
continuous blockĆtransfer
scanner flag
Used for Peterson semaphore. See sample code in chapter 8.
0C0B
continuous blockĆtransfer
VME flag
Used for Peterson semaphore. See sample code in chapter 8.
0C0D
continuous blockĆtransfer
turn flag
Used for Peterson semaphore. See sample code in chapter 8.
0C0F
continuous blockĆtransfer
status
READ ONLY
Indicates the status of the continuous blockĆtransfer.
0100 = block transfer disabled
0200 = block transfer pending
0400 = block transfer sent
0800 = block transfer received
0C10-0C50 continuous blockĆtransfer
write/read data
(64 words)
Contains as many as 64 words of write or read data
parameters