9 Modbus RTU – integrated Modbus port specification
9.3 Modbus register map
PXR Electronic trip unit 01/21 MN012005EN www.eaton.com 55
Power objects are presented as fixed-point values in either the two-register
fixed-point data format or the four-register coding format.
The two-register format is displayed in kilowatt hours.
404981 406517 1374 1974 Counter - external actuation
1)
– 1
404983 406519 1376 1976 Time of last actuation
(year, month, day, hour, minute, second)
–
405009 406545 1390 1990 Operating time
2)
in minutes min 1
405011 406547 1392 1992 Operating time
2)
in hours h 1
405013 406549 1394 1994 Operating time
2)
in days d 1
405015 406551 1396 1996 Residual life
3)
points –
1) An external actuation is a switching operation that is not initiated by the trip unit, such as manual switching, switching via an externally wired remote
operator or the actuation of a push-to-trip button.
2) The operating time counter will start as soon as the device is energized, either autonomously or through an external power supply.
3) 0 points ≙ 100 % residual life
10.000 points ≙ 0 % residual life
Conversion formula: Residual life expressed as a percentage = 100 - (point value / 100)
Register number Register address
(HEX)
Object
IEEE floating
point
Fixed point
(FP)
IEEE floating
point
Fixed point
(FP)
Description
(Values in brackets reflect the
American notation.)
Unit
Scale
factor (FP)
To Next Page
Loading...
