Maxim Integrated 6612_OMU_S2_URT_V1_13 - Manual (Page 25)

FDD_6612_ 010 6612_OMU_S2_URT_V1_13 Firmware Description Document
Rev. 1.1 25
Output
Location
(hex)
LSB Comment Example
Reserved 3F – Reserved Reserved
Table 4 lists the narrowband measurement outputs for Outlet 2.
Table 4: Outlet 2 MPU Outputs for Narrowband Method
Output
Location
(hex)
LSB Comment Example
Delta
Temperature
40 0.1 °C
Temperature difference from
22° C. Note: Duplicate of
address 0x00 (see Table 2 ).
If external temperature is 32 °C
)40?
Returns:
+10.0
Line
Frequency
41 0.1 Hz
Line Frequency
Note: Duplicate of address
0x01 (see Table 2 ).
If the line frequency is 60 Hz:
)41?
Returns:
+60.0
Alarm Status 42
Bit 0 – Minimum Temperature
Alarm.
Definition for Status Register
Bit 1 – Maximum Temperature
Alarm.
Bit 2 – Minimum Frequency
Alarm.
Bit 3 – Maximum Frequency
Alarm.
Bit 4 – SAG Voltage Alarm.
Bit 5 – MINVA – under
minimum voltage on VA input.
Bit 6 – MAXVA – over
maximum voltage on VA input.
Bit 7 – MAXIA_NB – maximum
narrowband current exceeded
on Outlet 1.
Bit 8 – MAXIA_WB – maximum
wideband current exceeded on
Outlet 1.
Bit 9 – PFA_NB negative –
Narrowband Power Factor
Negative Threshold Alarm for
Outlet 1.
Bit 10 – PFA_NB positive –
Narrowband Power Factor
Positive Threshold Alarm for
Outlet 1.
Bit 11 – PFA_WB negative –
Wideband Power Factor
Negative Threshold Alarm for
Outlet 1.
Bit 12 – PFA_WB positive –
Wideband Power Factor
Positive Threshold Alarm for
Outlet 1.
Bit 13 – MAXIB_NB –
maximum narrowband current
exceeded on Outlet 2.
Bit 14 – MAXIB_WB –
maximum wideband current
exceeded on Outlet 2.
Alarms become “1” when thresholds
exceeded.
Note: Additional Status Alert is Located
at addr 0xBD (see Table 8 ).
Note: When AC voltage input is less
than or equal to 10 V
RMS
,
•
Only MINVA alarm is active.
•
All measurements are forced to
0 except power factor, which is
forced to 1.
Note: The frequency measurement is
forced to 0 as long as the SAG voltage
alarm is active.