78M6612-DB/OMU-USB Maxim Integrated Products, 78M6612-DB/OMU-USB Datasheet - Page 20

• Manufacturer Part Number: 78M6612-DB/OMU-USB
• Description: KIT DEMO OUTLET MEASUREMENT OMU1
• Manufacturer: Maxim Integrated Products

Specifications of 78M6612-DB/OMU-USB

• Data Bus Width: 8 bit
• Interface Type: USB
• Tool Type: Demonstration Board
• Core Architecture: 8051
• Cpu Core: 80515
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

6612_OMU_S2+2_URT_V1_14 Firmware Description Document
5 MPU Measurement Outputs
This section describes the measurement outputs that can be obtained. Energy outputs are accumulated
numbers. The host accessing the measurement information from the 78M6612 more frequently will not
result in any update in the information.
Table 2 lists the Narrowband outputs for Outlet 1.
20
Temperature
Alarm Status
Frequency
Output
Delta
Line
Location
(hex)
00
01
02
Table 2: Outlet 1 MPU Outputs for Narrowband Method
0.01 Hz
0.1 °C
LSB
Bit 0 – Minimum Temperature Alarm.
Narrowband Power Factor Negative
Threshold Alarm for Outlet 1. Only
Bit 3 – Maximum Frequency Alarm.
Temperature difference from 22 °C.
Narrowband Power Factor Positive
Threshold Alarm for Outlet 1. Only
Bit 2 – Minimum Frequency Alarm.
Wideband Power Factor Negative
narrowband current exceeded on
narrowband current exceeded on
Wideband Power Factor Positive
Bit 14 – MAXIB_WB
Bit 5 – MINVA
Bit 6 – MAXVA
Bit 13 – MAXIB_NB
Definition for Status Register
Bit 8 – MAXIA_WB
Bit 7 – MAXIA_NB
wideband current exceeded on
wideband current exceeded on
Bit 1 – Maximum Temperature
Threshold Alarm for Outlet 1.
Threshold Alarm for Outlet 1.
Bit 11 – PFA_WB negative -
Bit 12 – PFA_WB positive
Bit 10 – PFA_NB positive
Bit 4 - SAG Voltage Alarm.
Bit 9 – PFA_NB negative –
available is )F2 bit 2 is 1.
available is )F2 bit 2 is 1.
voltage on VA input.
voltage on VA input.
Line Frequency.
Comment
Outlet 1.
Outlet 1.
Outlet 2.
Outlet 2.
Alarm.
–
–
under minimum
over maximum
–
–
–
–
maximum
maximum
maximum
maximum
–
–
If external temperature is 32 °C
Note: When AC voltage input is
Note: Additional Status Alert is
•
•
less than or equal to 10 V
If the line frequency is 60 Hz:
long as the SAG voltage alarm
measurement is forced to 0 as
Alarms become “1” when
Located at addr 0xBD
thresholds exceeded.
Only MINVA alarm is active.
All measurements are
forced to 0 except power
factor, which is forced to 1.
Note: The frequency
(see
Example
)00?<CR>
)01?<CR>
Returns:
Returns:
+60.00
is active.
+10.0
Table
UG_6612_017
8)
Rev. 1.0
RMS
,