Rockwell Automation 57C415 24V AC/DC Input Module - Manual (Page 19)

5Ć3
configuration task. Verify that the register number and bit
number are correct.
For remote I/O installations, also verify that the master slot
and remote drop number are defined correctly.
Step 2. Verify that the module can be accessed.
Connect the programming terminal to the system and run
the ReSource Software. Use the I/O MONITOR function to
display register 0. If the programmer is able to monitor the
inputs, the problem lies in the application software
(proceed to step 3). If the programmer cannot monitor the
inputs, the problem lies in the hardware (proceed to step
4).
Step 3. Verify that the user application program is correct.
This module cannot be written to. If a BASIC task caused
the bus error, the error log will contain the statement
number in the task where the error occurred. If a ladder
logic or control block task caused the error, you will need
to search the task for any instances where you used an
input as a ladder logic coil or wrote to it in a control block
task.
Step 4. Verify that the hardware is working correctly.
Verify the hardware functionality by systematically
swapping out the input module, processor module(s), and
backplane. After eachswap, if the problem is not
corrected, replace the original item before swapping out
the next item.
For remote I/O installations, systematically swap out the
input module, the slave remote module, and the
backplane. After eachswap, if the problem is not
corrected, replace the original item before swapping out
the next item.