Owner's manual

Appendix B
Discrete Bit Results
B–10
Note: When using the backplane, don’t write directly to word 2. Write to
word 1023. The CVIM will copy the data from word 1023 to word 2.
Note: When communicating with a device through the Pyramid Integrator
backplane, CVIM module results are posted in shared memory immediately
after processing. When communicating with a device through the other ports,
results are only available at the end of the inspection program.
Table B.3
Discrete Bit Outputs
Word # Bit #
PI Backplane
RS–232
and
Remote I/O
D
E
C
I
M
A
L
O
C
T
A
L
Definition Usage Notes
PI PLC
2 0 0 – 7 0 – 7 Not Used
2 0 8 10 Lock Request 0 = No Change
1 = Lock
Do not set bits 8 and 9 at the same time. If you set
both bits, the CVIM will be unlocked.
You must reset this bit to 0, then back to 1 to repeat
a lock request.
2 0 9 11 Unlock Request 0 = No Change
1 = Unlock
You must reset this bit to 0, then back to 1 to repeat
an unlock request.
2 0 10 12 Host Trigger
Toolset 1
0 = No Trigger
1 = Trigger
You must reset this bit to 0, then back to 1 to repeat
a trigger request.
2 0 11 13 Host Trigger
Toolset 2
0 = No Trigger
1 = Trigger
You must reset this bit to 0, then back to 1 to repeat
a trigger request.
2 0 12 14 Light Pen Request 0 = No Request
1 = Request
Bit 12 commands are specified in:
Output words 1 and 6 (Remote I/O)
Output words 3 and 8 (Backplane)
You must reset bit to 0, then back to 1 to repeat a
light pen request.
Discrete Bit Outputs (cont’d)