Rockwell Automation 1336T PLC Comm. Adapter, Series B, FRN 2.xx-3.xx - Manual (Page 80)

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Publication 1336 FORCE–5.13 –– September, 1998
Note: When you apply power to the system, the default input speed
reference is specified in SP Default Ref (parameter 416). You can
change the value of SP Default Ref at any time, but the change does
not take effect until the power is cycled. SP Default Ref may be set
to external reference 1 or 2 or preset speeds 1, 2, 3, 4, or 5.
Ownership is when a SCANport device commands a function. As
long as that function is commanded, that device is the owner of that
function. For example, if device 1 is commanding a forward
direction, which is a one owner function, no other device can change
the direction until device 1 stops commanding the forward direction.
If device 1 is commanding a start, which is a multiple owner
function, other devices can also command a start. If device 1 stops
commanding the start, the drive does not stop running if another
device is still commanding the start.
Note: A rising edge is required for start and jog functions. If a jog
or start is still commanded after the drive is stopped, start and jog
functions will not operate from any device until the jog or start
commands are removed.
Determining Function Ownership
To determine which device is issuing a specific command, you can
use parameters 369 through 379:
To determine which device is issuing
this command:
Check this parameter:
Stop 369
Direction control 370
Start 371
Jog1 372
Jog2 373
Velocity reference 374
Local control 375
Flux enable 376
Trim enable 377
Ramp 378
Clear fault 379
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