Allen-Bradley ClutchBrake PLC-5 Series - Page 79

4–17Write Ladder Logic
Publication 65566.5.1 - October 1996
Figure 4.19
Example
Command to Select Automatic Singlestroke Mode
from a Remote Selector B151/26
Use this command bit to switch press mode to auto single-stroke from a
remote selector. Start the press with bit B151/25 (Figure 4.18). ANSI
B11.1 requires that your logic include a setup/reset action or operator
decision prior to the manual actuation of the operator control(s).
| Start Set Remote |
| Auto Auto Single Auto |
| Single Pushbutton Single |
| I:040 I:040 B151 |
+–––] [––––––––+–––] [–––+––––––––––––––––––––––––( )––|
| 03 | 09 | 26 |
| | B151 | |
| +–––] [–––+ |
| 26 |
Important: To select press operating modes remotely (from a remote
selector such as a hardware or software line supervisor), an operator
must select remote mode with the main selector switch. Then your
software can select from the following mode-select bits one at a time:
•remote inch (bit 10)
•remote single stroke (bit 13)
•remote continuous (bit 14)
•remote micro–inch (bit 24)
•remote automatic single stroke (bit 26)
Figure 4.20
Example
Command to Arm for Automatic Continuous on Demand B151/27
Use these commands bits to switch the press mode to remote continuous
mode from a remote selector and start the armed-for-continuous timer.
Use bit B151/25 (Figure 4.18) to start press motion after arming.
| Line Supervisor Remote |
| Continuous Mode Continuous Mode |
| I:040 B151 |
+–––] [––––––––––––––––––––––––––––––––––––––––––––( )––|
| 04 14 |
| Armed for |
| Arm Continuous Continuous |
| on Demand PB on Demand |
| I:040 B151 |
+–––] [––––––––––––––––––––––––––––––––––––––––––––( )––|
| 07 27 |
When B151/27 is turned ON, it starts a 5-minute one-shot timed interval
in which your logic must simulate pressing run buttons by setting
B151/25. Use B151/27 under these conditions:
•completely automated press with run buttons ignored
•remote continuous mode
(bit 14 = ON and manual selector switch in remote mode)