User`s manual

Maxiflex T2 CPU User Manual 45 -© Omniflex
UMM124XBR04.pdf
8.2 T2 CPU Static Configuration Data Area DIT Register Assignment
(DIT Registers 64000 – 65499)
This DIT area is maintained in the CPU as non-volatile memory. Data content is retained even if the on-
board battery is low or being replaced. All configuration of T2 functions is therefore implemented here so
that configuration is not lost during power down. In addition, there are some registers available for the
User to place some configuration parameters for application programs.
DIT Number Description
64000 - 64014
User’s Application Name
These registers are reserved to allow the user to enter the name of the application
programmed into this CPU. This is a programming aid to the user only and this
information is not used by the CPU
64015
User’s Application Version Number
These registers are reserved to allow the user to enter the Revision of the application
programmed into this CPU. This is a programming aid to the user only and this
information is not used by the CPU
The conventional format for this register is to store the Major Version as two hex
characters, and Minor Version as two hex characters.
Eg: Version 2.12 would be stored in this register as the hex number 0212.
64016 – 64047 RESERVED
64048
Backup Battery Alarm Thresholds (M1152 PSU Only)
The upper byte holds the Battery Voltage “Critical” Threshold (in tenths of a volt)
The lower byte holds the Battery Voltage “Alarm” Threshold (in tenths of a volt)
64049
Battery Test Interval (M1152 PSU Only)
The CPU will perform a battery test at regular intervals if an M1152 PSU is fitted to the
Rack. This item selects the interval time period in tens of seconds.
The default test interval is 10 minutes (default value = 60).
64050 - 64065
I/O Manifest Configuration
The I/O Manifest is the list of I/O modules required for the system.
This is where the particular I/O Manifest for the Maxiflex system is setup. The Module
ID for each module in every slot must be entered here for each slot. The CPU will cross
check this manifest against the modules actually installed in the Maxiflex system and
the I/O OK LED will turn ON if hardware correlates with the manifest otherwise it will
remain OFF. In addition the I/O Manifest Status register will be updated.
64050
I/O Manifest Key
This register locks the I/O Manifest setup according to the I/O Manifest below. The logic
is as follows:
If bit 0 = 0 then the I/O Manifest is not locked and the I/O Manifest is configured with
the current installation of I.O Modules.
If bit 0 = 1, then the I/O Manifest is locked and any deviation between the I/O Manifest
and installed I/O modules is flagged in DIT 50 I/O Manifest Status.
64051 Set the Module ID for the module installed in I/O Slot 1