6-2
Reporting and Alarm Functions
BE1-951
The IRIG input is fully isolated and accepts a demodulated (dc level-shifted) signal. The input signal must
be 3.5 volts or higher to be recognized as a valid signal. Maximum input signal level is +10 to -10 volts(20
volt range). Input resistance is nonlinear and rated at 4 kilo-ohms at 3.5 volts. Section 3, Installation,
Communication Connectors and Settings identifies the terminal connections for the IRIG function.
Setting the Clock Function
Time reporting can be displayed in 12 or 24 hour format. When operating in the 12 hour format, the
A.M.
/
P.M.
parameter is placed between the minutes and seconds parameters (10:24P23.004 indicates 10:24 in the
evening). The default time format is 24 hours. Date reporting format can display the date in mm/dd/yy or
dd/mm/yy format. The default date format is mm/dd/yy. The relay clock can also accommodate daylight
saving time changes. Automatic daylight saving time adjustments are optional and are disabled by default.
Time and date settings are made using the SG-CLK command. Clock settings are summarized in Table 6-2.
Table 6-2. SG-CLK Command Settings
Parameter
Range
Default
date format
d (day first)
m (month first)
m
time format
12 (12 hour format)
24 (24 hour format)
24
dst enable
0 (daylight saving time
disabled)
1 (daylight saving time enabled)
0
SG-CLK Command
Purpose:
Reads or sets the format of the time and date display.
Syntax:
SG-CLK[=<date format>,<time format>,<dst enable>]
Comments: See Table 6-2 for SG-CLK settings information.
SG-CLK Command Examples
1.
Read the clock format settings.
>SG-CLK
M,24,0
2.
Enable daylight saving time correction.
>SG-CLK=,,1
Reading and Setting the Clock
Clock information can be read and set at the front panel HMI and through the communication ports. Write
access to reports is required to set the clock at the HMI and communication ports. An alarm point is
provided in the programmable alarms to detect when the relay has powered up and the clock has not been
set. Time and date information is read and set at HMI screen 4.6. Time and date information is read and
programmed through the communication ports using the RG-DATE and RG-TIME commands. Time settings
are summarized in Table 6-3.
RG-DATE Command
Purpose:
Report or set the clock’s date setting.
Syntax:
RG-DATE[=<M/D/Y>] or RG-DATE[=<D-M-Y>]
Comments: d and m settings are based on SG-CLK setting.
RG-DATE Command Example
1.
Enter the date for December 31, 1999.
>RG-DATE=12/31/99 or >RG-DATE=12-31-99
