ABB AC 31 Technical Manual page 207

Annexes - Page 4
Annexes
The KW00.00...KW15.15 and KD00.00 variables are called system constants and are only
accessible through the configuration menu of the AC31GRAF programming software.
Diagnosis variables
sum of errors
fatal error Class 1
serious error Class 2
light error Class 3
warning Class 4
M255.00
M255.01
M255.02
M255.03
M255.15
Status of the CS 31 bus
IW62.15
bit 0:
bit1 = 1:
bits 2 to 7:
bit 8 to 15:
Clock
IW62.08:
IW62.09:
IW62.10:
IW62.11:
IW62.13:
IW62.14:
The clock may be updated with the configuration editor of the AC31GRAF programming
software or by the UHR function.
M255.10 indicates that the central unit has detected an error
M255.11 detailed information in MW254.00...MW254.07
M255.12 detailed information in MW254.08...MW254.15
M255.13 detailed information in MW255.00...MW255.08
M255.12 detailed information in MW255.08...MW255.15
oscillator with a frequency of 2 Hz
oscillator with a frequency of 1 Hz
oscillator with a frequency of 0.5 Hz
oscillator with a 1 minute period
this bit may be used for detecting the first cycle. It is
always reset to "zero" at each program launch independently
of the bit backup area chosen. This bit may be read
by the user and set to 1 at the end of the first cycle.
not used
the central unit was initialized on the CS 31 bus (only valid for
the slave central units)
not used
maximum number of units initialized on the CS 31 bus (only
significant for the CS 31 bus master central units).
seconds (0...59)
minutes (0...59)
hours (0...23)
day of the week (1...31)
month (1...12)
year (0...99)
ABB Control - AC 31
1SBC 260400 R1001-b 06.99