Allen-Bradley ControlLogix System 1756-L1 User Manual page 189

J.
K.
Allen-Bradley HMIs
F.
I. In step , which Comm Format did you select?
If:
Rack Optimization
None
J. Initially, do you want the module to communicate with the
controller?
If: Then:
Yes Leave the check box cleared
(unchecked).
No Select the check box.
K. If communication with the module fails, how do you want the
controller to respond?
If communication with a module fails, the
ATTENTION
controller operates on old data from the
!
module. To avoid potential injury or damage,
either monitor communications with modules
or configure modules to produce a major fault
if communications fail.
If you want the
controller to:
fault (major fault)
continue operating
L. Click Finish.
Communicate with 1794 I/O Over a ControlNet
I.
Then:
Type the rate at which the fastest device on the rail must
update.
• Use a power of two times the ControlNet NUT.
• For example, if the NUT is 5 ms, type a rate of 5,
10, 20 ms, etc.
No RPI is required. Go to the next step.
Notes:
When you test this portion of the
system, clear the check box.
Then:
Select the check box.
Leave the check box
cleared (unchecked).
Publication 1756-UM001E-EN-P - August 2002
™
Network 10-5
42401
Notes:
Monitor the connection
using ladder logic.