GE PACSystems RX7i

Chapter 6. Service Request Function
314 PACSystems* RX7i, RX3i and RSTi-EP CPU Programmer's Reference Manual GFK-2950C
6.21.2 Extended Formats
Each extended format request can read a maximum of 64 faults, or the size of the fault table if it
contains fewer than 64 faults.
For extended formats (Read Extended Controller Fault Table (80h), Read Extended I/O Fault Table
(81h) or Read Extended I/O Fault Table with Remote Fault Record (C1h)), the controller calculates
the number of entries being read. Be sure that sufficient register space is available to accommodate
the number of fault entries requested. If the amount of data requested exceeds the register space
available, the CPU returns a fault indicating that reference memory is out of range.
The total size of the fault table for the extended fault format is
Header Size + ((# fault entries) × (size of fault entry))
Input Parameter Block Format
Amount of Retuned Data
Address+0
80h = Read Extended Controller Fault Table
81h = Read Extended I/O Fault Table
C1h = Read Extended I/O Fault Table with Remote Fault
Record
23 words (46 bytes) for each fault entry
23 words (46 bytes) for each fault entry
25 words (50 bytes) for each fault entry
Address+1
Starting index of faults to be read
Address+2
Number of faults to be read