Tyco Electronics Galaxy SC Controller J85501F-1
6 - 24 Operation Issue 13 February 2001
DC Distribution
Management
The T1.317 interface allows the user to configure the DC Distribution
object so that DC Distribution parameters may be viewed from either the
T1.317 interface or the front panel.
Configuration involves configuring a user-defined event to become
active when a DC distribution fuse is open and then linking that event to
the DC Distribution object. Please refer to the section entitled “T1.317
User-Defined Event Management” in this manual for instructions on
configuring user-defined events. The example below illustrates how to
link a user-defined event to the DC Distribution object.
LIN LDA DFA,U0001 link user-defined event U0001 as the
DC distribution fuse alarm.
Derived Channel
Management
Configuring derived channels from the T1.317 interface involves
adding a derived channel followed by setting the program line and the
units attributes. The examples below illustrate how this can be done:
ADD DRC,DR01 add derived channel 1
CHA DR01,UNI=“A” change the units to A for amps
CHA DR01,PRG=“(G01 ADC + G02 ADC)/2”
change the program line to calculate the
average DC current of rectifiers 1 and 2
After configuring derived channel 1 as shown above the derived channel
value will be equal to the average of the rectifier currents. The value can
be viewed using either the STA (status) or MET(meter) commands. The
examples below illustrate the use of these two commands:
STA DR01,VAL
MET DR01
Below are more examples of measurement attributes that may be
included in the derived channel program line:
DC1 VDC DC plant voltage
DC1 UBT universal battery temperature
DR04 VAL derived channel 4 value
C103 VAL peripheral monitoring value of
channel 1 address 3
It may be useful to link a derived channel to another object. For
example, if DR01 in the above example represents the average load of
all rectifiers in the plant, it may be useful to have its value reported as a
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