1) Installation on G-line IPC bus
The OMS PCI-004 boards can go on either
side of the extended PCI bus in the IPC
Each board has to be given a unique address
with jumpers, allowing a maximum of 8
indexer boards in a single IPC:
Settings for Jumper JP6 (see OMS Manual page 2-4)
| board no. | jumper setting |
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| 8 |
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(NOTE: the OMS manual mentions a maximum number
of 4 boards per PC. Gerry Swislow found out that actually
8 boards are supported per PC, and we have verified
operation of 5 or more boards at G-line.)
2) SPEC installation
A) Menu : Motors and Counter Device Configuration
MOTORS : YES
TYPE : Oregon Micro Systems
PCIx
NUM : 4
MODE : poll
(declare one entry for each PCI board)
B) Main menu : motor parameters
Controller : OMS
unit/channel : 0/0, 0/1, 0/2, 0/3
for the 4 axes of board no. 1 (as of jumper address)
1/0, 1/1, 1/2, 1/3 for the 4 axes of board no. 2
and so on
other parameters : the usual stuff
C) gsetup script
use: login as "specadm", start SPEC, and type "gsetup"
A text editor will display various hardware settings - look for the
"MOTION CONTROL" section
the CHESS/G-line default is "Limits HI". This has to be set by software
for the OMS PCIx boards.
The gsetup script is written in a way that all motors defined in "config"
will be automatically set up
to the default setting (MOTORS is the SPEC internal variable for the
number of motors):
# set limits
HI
{local i
for (i=0;i<MOTORS;i++) {
motor_par(i,"send","LH")
}
}
If you need to move a motor that has neither limit switches wired up
nor limit lines shorted
(CHESS default), you can set limits LO for this particular motor, e.g.
:
# non-standard
limits
# set limits
LO for motors without limit switches
motor_par(tha,"send","LL")
In this particular example the motor "tha" was reconfigured.
NOTE: usually the default settings should do, unless spec is re-installed
from scratch.