Allen-Bradley ControlLogix System 1756-L1 User Manual page 162

9-6 Communicate with 1771 I/O Over a ControlNet™ Network
Publication 1756-UM001E-EN-P - August 2002
I.
J.
H. Type the rate at which the fastest device in the chassis 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.
I. 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.
J. If communication with the module fails, how do you want the
controller to respond?
ATTENTION
!
If you want the
controller to:
fault (major fault)
continue operating
K. Click Finish.
H.
Notes:
When you test this portion of the
system, clear the check box.
If communication with a module fails, the
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.
Then:
Select the check box.
Leave the check box
cleared (unchecked).
42401
Notes:
Monitor the connection
using ladder logic.