GE PACSystems RXi User Manual page 56

Memory Allocation Configuration
Memory Parameters
Reference Points
%I Discrete Input, %Q Discrete Output,
%M Internal Discrete, %S System, %SA
System, %SB System, %SC System, %T
Temporary Status, %G Genius Global
Total Reference Points
Reference Words
%AI Analog Input
%AQ Analog Output
%R Register Memory
%W Bulk Memory
Total Reference Words
Managed Memory
Symbolic Discrete (Bits)
Symbolic Non-Discrete (Words)
I/O Discrete (Bits)
I/O Non-Discrete (Words)
Total Managed Memory Required (Bytes)
Total User Memory Required (Bytes)
Point Fault References
GFK-2816F
The upper range for each of these memory types. Read only.
Read only. Calculated by the programming software.
Valid range: 0 through 32,640 words.
Default: 64
Valid range: 0 through 32,640 words.
Default: 64
Valid range: 0 through 32,640 words.
Default: 1024.
Valid range: 0 through maximum available user RAM.
Increments of 2048 words.
Default: 0.
Read only. Calculated by the programming software.
The configured number of bits reserved for symbolic discrete variables.
Valid range: 0 through 83,886,080 in increments of 32768 bits.
Default: 32,768.
The configured number of 16-bit register memory locations reserved for
symbolic non-discrete variables.
Valid range: 0 through 5,242,880 in increments of 2048 words.
Default: 65,536.
The configured number of bits reserved for discrete IO variables.
Valid range: 0 through 83,886,080 in increments of 32768 bits.
Default: 0
The configured number of 16-bit register memory locations reserved for
non-discrete IO variables.
Valid range: 0 through 5,242,880 in increments of 2048 words.
Default: 0
Read only. Refer to page 42 for calculation.
Read only. Refer to page 42 for calculation.
The Point Fault References parameter must be enabled if you want to
use fault contacts in your logic. Assigning point fault references causes
the CPU to reserve additional memory.
When you download both the HWC and the logic to the Controller, the
download routine checks if there are fault contacts in the logic and if there
are, it checks if the HWC has the Point Fault References parameter set to
Enabled. If the parameter is Disabled, an error is displayed in the
Feedback Zone.
When you download only logic to the Controller, the download routine
checks if there are fault contacts in the logic and if there are, it checks if
the HWC on the Controller has the Point Fault References parameter set
to Enabled. If the parameter is Disabled, an error is displayed in the
Feedback Zone.
Default: Disabled
August 2015
Chapter 4. Configuration
43