Rockwell Automation 6008-SV2R VMEbus remote I/O Scanner - Manual (Page 64)

Chapter
Operating in SVĆCompatible Mode
5
5Ć13
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.
not used
not used
scan list
length
Byte offset
(Hex)
102
104
106
-11B
11E
Name
11C
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
semaphore
120
channel A
control/status
scan list
as many as 64 bytes
-15F
channel A
general data
160
-FBF
not used
number of entries (0-64)
in the scan list
command
confirmation
not used
not used
103
105
11D
11F
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:
11F 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.
120 scan list This list is a maximum of 64 bytes long (1 byte per adapter),
but it can contain only 16 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 5.6 and Figure 5.7.
SCAN LIST
command byte 11
description
parameters