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468
System Status File
S:1/0 to S:1/4
S:1/4 S:1/3 S:1/2 S:1/1 S:1/0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
1
1
0
0
1
1
0
1
0
0
1
0
0
0
1
0
0
0
1
1
0
1
1
1
1
1
•
(1) Valid modes are indicated by the (
Publication 1763-RM001C-EN-P - October 2009
Sign Flag
Address
Data Format
S:0/3
binary
This bit is set (1) when the result of a mathematical operation or data
handling instruction is negative. Otherwise the bit remains cleared (0).
When a STI, High-Speed Counter, Event Interrupt, or User Fault Routine
interrupts normal execution of your program, the original value of S:0/3 is
restored when execution resumes.
Controller Mode
User Application Mode
Address
Data Format
S:1/0 to S:1/4
binary
Bits 0 through 4 function as follows:
Mode
Controller Mode
ID
0
0
remote download in progress
1
1
remote program mode
1
3
remote suspend mode
(operation halted by execution of the SUS
instruction)
0
6
remote run mode
1
7
remote test continuous mode
0
8
remote test single scan mode
0
16
download in progress
1
17
program mode
1
27
suspend mode
(operation halted by execution of the SUS
instruction)
0
30
run mode
) symbol. N/A indicates an invalid mode for that controller.
Range
Type
0 or 1
status
Range
Type
0 to 1 1110
status
Use by MicroLogix Controller
1100
•
•
•
•
•
•
•
•
•
•
User Program Access
read/write
User Program Access
read only
(1)
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