Rockwell Automation 6008-SV2R VMEbus remote I/O Scanner - Manual (Page 125)

Chapter
Operating in SVĆSuperset Mode
6
6Ć44
RESET causes the scanner to reset itself. The VME master processor can
issue RESET any time. When the scanner stops running due to another
VME module asserting SYSFAIL, you can use RESET to reset the scanner,
which causes the scanner to re-initialize itself.
RESET looks for the appropriate values in the 2 words right before the
VME status ID area. If the values are there, the scanner resets itself,
performs its power-on self-test, and enters the SLEEP state. The
application program has to wake up the scanner and then send a SETUP
command to configure the scanner (see chapter 8 for an example). This
applies to either channel.
During the RESET, the scanner stops scanning the remote I/O and all three
LEDs on the scanner light. RESET is different than a power cycle to the
scanner in that with RESET, the scanner doesn’t assert SYSFAIL during
the self tests and the scanner doesn’t clear the I/O image tables. The
scanner leaves the I/O image tables in their last state. The scanner then
enters the SLEEP state.
A0A0 (hex)
Byte offset
(Hex)
1FBE
Name
1FBC 0080 (hex)
channel A
continuous
block transfer
read table
-1FFF
1FC0
C00 not used
-1FBB
reset code word
reset code word
scanner interrupt and
VME ID area
(64 bytes)
RESET
description