ST IPE009V1 User Manual
Mono-phase / multi-tariff energy meter
based on the ST72321BR9 and STPM14
Features
■ Cost-effective and flexible
■ Meets Class 1 accuracy for I
I
= 80 A according to IEC 61036:1996 + A1:
max
2000 - Static meter for active energy (classes 1
and 2)
■ Operating voltage range 220 V ± 20%
■ Continuously detects and displays no-load
conditions, reverse direction, fraud and case
tamper conditions
■ Configurable number of tariffs (1 to 4) and
maximum demand type (day, one month or
three month)
■ Accumulated data for whole meter life
(total kWh consumption, average MD
(maximum demand), total number of tariffs,
tariff time slots, consumption under different
tariff rates, power failure date/time)
■ Data for last 12 months (consumption under
tamper mode for each month, first/last
case/fraud tamper date/time, total tamper time
and power failure accumulating time for each
month)
■ Data for absolute maximum demand (absolute
MD, date/time) according to type of MD
requested
■ SW LCD driver for 24 x 4 segment LCD glass
with contrast control
■ RTC with SPI for real date/time
■ EEPROM with SPI for storing 256 Kb of data
■ Case tamper detection even in power-down
■ External switch for viewing all data stored in
EEPROM sequentially even when AC power is
not available
■ Battery backup to detect tampering and see all
parameters stored in EEPROM even during
power-down
= 5 A and
B
STEVAL-IPE009V1
Data Brief
STEVAL-IPE009V1
■ Single point and fast calibration of the STPM14
for Class 1 meter.
Description
This demonstration board is an integrated system
designed to provide the user with a complete,
ready-to-use energy meter application. It is a
medium-end solution for power metering, using
the ST72F321BR9T6 microcontroller, the
M41T94 RTC (real-time clock), the M95256
EEPROM and the STPM14 energy meter ASSP
device.
The multi-tariff energy meter demonstration board
implements many features that can be used as a
starting platform for evaluation and development
of meter applications, including multi-tariff
management, absolute and average maximum
demand calculation, two types of tamper
management, and power failure management.
September 2008 Rev 1 1/7
For further information contact your local STMicroelectronics sales office.
www.st.com
7
Schematic diagram STEVAL-IPE009V1
1 Schematic diagram
1.1 Multi-tariff single-phase meter
Figure 1. Schematic - microcontroller and IrDA section, MCU oscillator/reset
IrDA section
+5.0 VB
C5
+5.0 VB
+5.0 V
10 kΩ
R38
+5.0 VB
100 nF
OSC2
IROUT
PA5
PP
V
U6
JP1
C12
1 2
PA4RESET
IRQSTPM
OSC1
IRIN
Ω
D10
R39
39
1
+5.0 V
C33
C13
10 nF
100 nF
47
48
49
PA4
SS_1
V
50
PA5
51
52
PA6/SDAI
PA7/S CLI
53
/ICCSEL
PP
V
54
RESET
EVD
55
TLI
56
SS_2
57
V
58
OSC2
59
OSC1
DD_2
60
V
61
PE0/T DO
62
PE1/RDI
PE2
63
PE41PE52PE63PE74PWM3/PB05PWM2/PB16PWM1/PB27PWM0/PB38ARTCLK/PB4
PE3
64
100 nF
46
DD_1
V
U7A
PA3
3
TMPD
45
C
2
I
SCI
Q3
2
R30
1 2147
IROUT
SW1
PA2
BC847
1
Ω
3 k
C14
IRQRTC
IRQBUTT
43
44
PA0
PA1
ei0
74HC04
10 nF
42
SS/PC7
ei2
R41
+5.0 V+5.0 V
SDO
SCL
R7
R5
0 Ω
SDI
ICCCLK
ICCDATA
40
39
41
PC5/MOSI/AIN14
PC6/SCK/ICCCLK
PC4/MISO/ICCDATA
SPI
SPI
ST72F321BR9T6
ARTIC1/PB510ARTIC2/PB611PB712AIN0/PD013AIN1/PD114AIN2/PD215AIN3/PD3
9
Ω
IRIN
10 k
321
R40
220
Ω
R29
10 K
0 Ω
COM1
COM2
37
38
PC3/ICAP1_B
ei3
Q2
BC847
Q1
PHOTO NPN
1
2
COM3
COM4
35
36
34
PC2/ICAP2_B
PC0/OCMP2_B/AIN12
PC1/OCMP1_B/AIN13
ei1
MCU oscillator/reset
+5.0 VB
+5.0 VB
C19
100 nF
33
SS_0
DD_0
V
V
ICAP2_A/AIN11/PF5
BEEP/PF1
V
MCO/AIN8/PF0
V
AIN7/PD7
AIN6/PD6
16
EXTCLK_A/PF7
OCMP2_A/AIN9/PF3
SS_3
DD_3
V
AREF
AIN5/PD5
ICAP1_A/PF6
OCMP1_A /AIN10/PF4
PF2
SSSA
V
AIN4/PD4
R35
AM00281
OSC1
OSC2
123
X1
32
31
30
29
28
27
26
25
21 22 23 24
20
19
18
17
Ω
4.7 K
PF6
PF5 PF7
PF4
NLCD
PD5
PD4
NPD
PD6
RESET
PFD
R1
PD7
16 MHz
10 kΩ
R2
C31
SW2
10 nF
10 kΩ
C25
C24
100 nF
+5.0 VB
+5.0 VB
100 nF
Microcontrollers section
NERTC
EMEM
PE6
PE7
PB0
PB1
PB2
PB3
PB4
PB5
PB6
2/7
PB7
PD0
PD1
PD2
PD3
STEVAL-IPE009V1 Schematic diagram
Figure 2. Schematic - power management, RTC/memory SPI block
2
R4 5 KΩ
D4 BAT49
+5.0 VB
C1
100 µF
+
+
+5.0 V
PFD
C3
LL4148
D13
1
OUT
V
U2
L78L05AC
IN
V
8
7
0.25 W
R3
22E
C4
25 V
100 nF
50 V
10 µF
C2
S1S
22 nF 25 V
U1
8
L1 BC1
470 µH 100 MA
D6
D5
RF1
PHASE
1
J1
D12
1N4148
600 V
1 A
D2
STTH1L06
D3
DZ1
9.1 VZ
Power management section
3
GND2GND
L11 MH
250 mA
3
2
FB
1000 V
1000 V
10R 1 Ω
3
BT1
C11
+
+
1N4148
C10
+
+
4
NC
GND6GND
NC
5
D8
4
DD
V
D5D6D7D
C7
1 µF
C7
C6
1 µF
C6
1 A
1 A
CON1
1
4.8 V
L2 1 µH 150 mA
100 µF
100 µF 25 V
D11
1N4148
25 V
C9
100 nF
DZ2
10 VZ
C8
47 µF
25 V
600 V
1 A
STTH1L06
VIPER12ADIP
450 V
450 V
275 V 8.6 J
RV1
J2
F
1
Mains 230 VAC
CON1
U7F
14
U7E
14
U7D
U7C
U7B
Not used
13 12
11 10
9 8147
5 6147
3 4147
7
7
74HC04
74HC04
Y2
74HC04
74HC04
74HC04
C28
RTC/memory SPI block
+5.0 VB
U5
32.768 KHz
+5.0 VB +5.0 VB
C30+
100 nF
NERTC
IRQRTC
SDI
16
12
11
15
14
13
CC
NE
SDI
V
THS
SQW
NIRQ/FT/OUT
XI1XO2NRST3WDI4NRSTIN15NRSTIN26VBAT7V
R37
1 MΩ
C29
15 pF
SDO
EMEM
3
2
1
4
S
Q
W
V
CC
U4
D5C6HOLD7V
8
SDI
SCL
SCL
SDO
9
10
SCL
8
15 pF
SS
SDO
SS
2
3
M95256
C27
100 nF
AM00282
M41T94
1
BT2
BATTERY 3 V
3/7
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