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Right-click Online Operations for an Active DLB
Menu
Enable Rules
Download
Disabled if block is already running on controller,
target not in programmer mode, Config+Logic is not
equal, or Access Level prevents write.
Start
Disabled if block is already running, target not in
programmer mode, another block is executing on
controller, HWC+Logic is not equal, or Access Level
prevents write
Stop
Disabled if block is not executing
Remove
Disabled if block is not on controller, block is
executing, or not in programmer mode
DLB Online Operations
Only a single DLB can be downloaded and executed on the controller at a time. To download an
Active DLB to the controller, you must have:
▪
Program logic and HWC equal to the controller (Logic EQ)
▪
Target in programmer mode
▪
Sufficient privilege to write to the controller
Operation
Storing DLBs in STOP Mode
Storing DLBs in RUN Mode
When a DLB is downloaded, you are given the option of storing initial values or clearing memory for
local variables. If another DLB is already downloaded on the controller it will be removed before the
selected DLB is downloaded.
When a DLB is downloaded to the controller, all variables locally scoped to the DLB are published
from the controller so that HMIs or other devices can view the data.
While a DLB is running, the active target is read-only; no changes are allowed to DLB or the
application logic. If the DLB has been downloaded to the controller but is not executing, changes are
allowed but the first change will remove the DLB from the controller. You will be prompted to
confirm the change before the DLB is removed. Uploading of the DLB is not supported.
Once a DLB is downloaded to the controller, it can be started if the main program is running on the
controller in STOP with I/O Enabled or RUN with I/O Enabled Mode.
GFK-2950C
Minimum PACSystems RX3i Privilege Level Required
3
4
February 2018
Chapter 9. Diagnostics
Description
Downloads block to controller,
removing any other DLB that was
already there.
Downloads block to controller,
removing any other DLB that was
already there, and then starts
executing block.
Stops execution of block.
Stops block, then removes it from
controller.
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