Rockwell Automation Publication ICSTT-RM406J-EN-P - February 2021 65
Chapter 6 Troubleshooting and Rectifying Channel/Field Faults
• The value of the State variable ('2' in this example) will update in real
time to reflect the state of the I/O channel.
If the Spy List is empty, double-click on the ellipsis (...) to create the
entry.
To examine the State variable in AADvance Workbench software version 2.x
or AADvance-Trusted SIS Workstation software:
1. From the Equipment View, expand the module, and then double-click
the channel to examine.
2. From the Equipment property page, identify the State variable.
• Input modules: %IBnnn.0.n
• Output modules: %QBnnn.0.n
3. Connect to the controller to see updates in real time.
For information, refer to the online help or user manual for the product.
The value of the State variable updates in real time to reflect the state of
the
I/O channel.
Replacing Channel Fuses Use the following fuses for the I/O modules:
• Digital/ Analogue Input Fuses T9901:
No 396/TE5 50 mA time lag fuse; UL 248-14, 125 V, Leadfree;
manufactured by Littelfuse.
• Digital Output Fuses T9902:
SMF Omni-Block, Surface Mount Fuse Block 154 010, with a 10 A, 125 V
Fast Acting Fuse, Littelfuse.
Replace an Input Channel Fuse
1. Open the fuse cover.
ARC FLASH HAZARD: : In a hazardous location, make sure a circuit is de-
energized before you remove or replace a fuse. If the circuit is energized it
is possible to make an electrical arc and cause an explosion. Failure to
follow these instructions can cause injury to persons.
To Next Page
Loading...
Need help?
General
