Chapter 9. Diagnostics
388
PACSystems* RX7i, RX3i and RSTi-EP CPU Programmer's Reference Manual
GFK-2950C
9.2.2
I/O Fault Table
The I/O Fault Table displays I/O faults such as circuit faults, address conflicts, forced circuits, I/O
module addition/loss faults and I/O bus faults.
The fault table displays a maximum of 64 faults. When the fault table is full, it displays the earliest 32
faults (33
—
64) and the last 32 faults (1
—
32). When another fault is received, fault 32 is shoved out of
the table. In this way, the first 32 faults are preserved for the user to view.
Figure 20: I/O Fault Table Display
The I/O Fault Table provides the following information for each fault:
Location
Identifies the location of the fault by rack.slot location, and sometimes bus and
buss address.
CIRC No.
When applicable, identifies the specific I/O point on the module.
Variable
Name
If the fault is on a point that is mapped to an I/O variable, and the variable is set
to publish (either internal or external), the I/O Fault Table displays the variable
name. Unpublished I/O variables will not be displayed in this field.
Ref. Address
If the fault is on a point that is mapped to a reference address, this field
identifies the I/O memory type and location (offset) that corresponds to the
point experiencing the fault. When a Genius device fault or local analog module
fault occurs, the reference address refers to the first point on the block where
the fault occurred.
Note:
The Reference Address field displays 16 bits and %W memory has a
32-bit range. Addresses in %W are displayed correctly for offsets in the
16-bit range (
≤
65,535). For %W offsets greater than 16 bits, the I/O Fault
Table displays a blank reference address.
Fault
Category
Specifies a general classification of the fault.
Fault Type
Consists of subcategories under certain fault categories. Set to zero when not
applicable to the category.
Date/Time
The date and time the fault occurred based on the CPU clock.
Details
To view detailed information, click the fault entry. Refer to
Summary of Contents for PACSystems RX7i
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