Rockwell Automation 6008-SV2R VMEbus remote I/O Scanner - Manual (Page 96)

Chapter
Operating in SVĆSuperset Mode
6
6Ć15
SCAN LIST replaces the current scan list. The scanner must be in
Program mode. You can issue a SCAN LIST command without first
issuing an AUTOCONFIGURE command.
Byte offset
(Hex)
0202
0204
0206
-021B
021E
Name
021C
00H returned means the command was
successful. Any other value indicates
an error.
11H is both sent and returned.
1 byte per adapter
(you can enter the same adapter
multiple times)
see Figure 6.5
Bit 7 = semaphore
not used
not used
0220
channel A
control/status
scan list
as many as 64 bytes
-025F
not used
channel A
general data
0260
-02FF
not used
number of entries (0-64)
in the scan list
scan list
length
semaphore
command
confirmation
0203
0205
not used
not used
021D
021F
The VME master processor writes 11 (hex) to the command byte. Then
the VME master processor writes these parameters to the selected
channel’s general data area:
Byte
offset:
Parameter: Description:
021F scan list length The scan list length indicates the number of entries (0-64) in
the scan list. The scan list length is an 8Ćbit quantity that the
scanner writes to the length of data byte in the control/status
area. You can enter a scan list length of 0.
0220 scan list This list is a maximum of 64 bytes long (1 byte per entry), but it
can contain only 32 distinct physical adapter addresses. The
list contains one byteĆsized entry for each adapter you want to
place in the list. An adapter can appear in the list multiple
times. See Figure 6.6 and Figure 6.7.
SCAN LIST
command byte 11
description
parameters