Rockwell Automation 5370 Color CVIM Communications Manual - Manual (Page 174)

(Host Input & Output Bits)
Appendix B
Discrete Bit Results Bits
B–20
Note: When using the backplane, don’t write directly to word 2. Write to
word 1023. The Color CVIM will copy the data from word 1023 to word 2.
Note: When communicating with a device through the Pyramid Integrator
backplane, Color 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.
Note: The Remote I/O Bit Number column (marked with an asterisk in the
table below) are expressed in Octal. All other values are expressed in
decimal.
Note: With RS–232, use commands based on the protocol you are using
(DF1 or ASCII).
Table B.3
Discrete Bit Outputs
PI Backplane Remote I/O
Word # Bit # Word # Bit #
Definition Usage Notes
2 0–7 0 0–7 Not Used
2 8 0 10 Lock Request
0 = No Change
1 = Lock
Do not set lock and unlock at the same
time. If you set both bits, the Color CVIM
will be unlocked.
You must reset this bit to 0, then back to
1 to repeat a lock request.
2 9 0 11 Unlock Request
0 = No Change
1 = Unlock
Do not set lock and unlock at the same
time. If you set both bits, the Color CVIM
will be unlocked.
You must reset this bit to 0, then back to
1 to repeat an unlock request.
2 10 0 12 Host Trigger
0 = No Trigger
1 = Trigger You must reset this bit to 0, then back to
1 to repeat a trigger request.
2 11 0 13 Not Used
2 12 0 14 Light Pen Request
0 = No Request
1 = Request
Lightpen request 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.
2 13 0 15 I/O Request
0 = No Request
1 = Request
I/O Request commands are specified in:
Output words 2, 4, and 5
(Remote I/O)
Output words 4, 6 and 7
(Backplane)You must reset bit to 0, then
back to 1 to repeat an I/O request.
Discrete Bit Outputs (cont’d)