Configure Ports - Irig-B; Configure Irig-B Settings - Arbiter Systems Power Sentinel 1133A Operation Manual

7.5 Configure Ports – IRIG-B
5. Select Anti-creep to set the minimum meter recognition values; select one for each phase. To
enable Anti-Creep, first select Anti-Creep ON under DSP Mode tab.
6. Do not select Internal Calibration. These are factory-installed, internal calibration values
used to standardize the 1133A accuracy.
7. Click Apply to install these values and OK to close the window.
7.5 Configure Ports – IRIG-B
To configure the IRIG-B output from the 1133A requires only two settings be configured: set the
Time Mode to UTC or Local, and select the 1344 Mode ON or OFF. The screen shot in Figure 7.5
illustrates where to adjust these settings. The 1344 Mode refers to the C37.118 specification for
Phasors.
Click the Time Mode arrow and choose either UTC or Local. UTC stands for Universal Time
Coordinated, based on the Prime Meridian that passes through Greenwich, England.
IEEE-1344 MODE ON
Click the 1344 Mode arrow and select either Disable or Enable. When enabled, it turns on the CF
(Control Function) portion of the IRIG-B code, which includes the following items: Year
digits, Leap Second Pending (LSP)
(DSP) 1 bit, Daylight Saving Time (DST)
bits, Time Quality
IEEE-1344 MODE OFF
When Disabled the IRIG-B time code is sent without the extra values in the Control Function group.
Only the BCD (Binary Coded Decimal) and SBS (Straight Binary Seconds) are transmitted.
Figure 7.5: Configure IRIG-B Settings
1 bit, Leap Second (LS)
4 bits, Parity 1 bit.
1 bit, Daylight Saving Pending
1 bit, Time offset sign
53
two
1 bit, Time offset 4