<Figure 1> is read setting example of using Power Meter PM296 of SATAC Corp., in Israel.
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| <Figure 1> Read setting example of SATEC PM296 protocol |
Device part of <Figure 1> input Com Port(COM1), Baud Rate(9600), Parity Bit(0), Data Bit(8), Stop Bit(1) respectively, and enter TxRTS(TxDTR), RxECHO and TxRTS(TxDTR) End/Start Delay time(nSec) according to 485 communication Converter.
Communication speed(Com Baud), Parity, Data, Stop Bit of SATEC PM296 are possible to be changed by operation panel which is connected at RDM or analog(digital) write.
Reference) SATEC PM296 communication driver uses the MODBUS type protocol.
Read schedule example
| READ | STATION | Read Type | Read Start Address | Memory Save Address | Read Size(Fixed) |
| READ, | 1, | DATA, | 0, | 0, | 53, |
| READ, | 1, | SETUP, | 0, | 60, | 15, |
| READ, | 1, | COMM, | 0, | 80, | 6, |
1) STATION : STATION (ID) number of RPT091 Meter. (1 ~ 247)
2) Read Type : Designate data type to read.
DATA – Reading Basic Data,
ALARM - Reading Alarm Setpoint,
AO_EXP – Reading Analog Output Expander Setup,
AO_SET - Reading Analog Output Setup,
ASR - Reading Alarm Status Register,
COMM1 – Reading Comm1 Communication Parameter,
COMM2 – Reading Comm2 Communication Parameter,
DATA_LC - Reading Data Log(Circular Access),
DATA_LS - Reading Data Log(Sequential Access),
DATA_SET - Reading Data Log Setup,
DEFINE – Reading User-Defined Data,
DI – Reading Digital Inputs Allocation,
DIRECT – Reading Direct MODBUS data(Read specific MODBUS address),
ESR – Reading Extended Status Register,
EVENT_LC - Reading Event Log(Circular Access),
EVENT_LS - Reading Event Log(Sequential Access),
EXTEND - Reading Extend Data, Classifying by Extend area(0~60 : Refer to <Table 2>),
SETUP – Reading Basic Setup,
LOG_MEM - Reading Log Memory Partitions Setup,
LOG_SET – Reading Data Log Setup,
MAP – Reading User Definable Register,
MEM_PAT - Reading Memory Partitions Status/Control,
MEM_STS - Reading Memory Allocation Status,
P_COUNT - Reading Pulse Counters Setup,
PULSE – Reading Pulsing Setpoint,
RELAY – Reading Relay Status,
RTC – Reading RTC(Current Time),
STATUS – Reading Instrument Status,
TIMERS - Reading Timers Setup,
USER_OP - Reading User Selectable Option.
3) Read Start Address : Read start address by read type.
4) Save start address for Communication Server : Save start address of Communication Server.
5) Read Size : Size to read.
Max reading size is different according to each read type. (Refer to <Table 1>)
Read Type |
Maximum Size |
DATA |
53 |
ALARM |
125 (Total 704) |
AO_EXP |
48 |
AO_SET |
6 |
ASR |
12 |
COMM1 |
7 |
COMM2 |
7 |
DATA_LC |
125 (Total 672) |
DATA_LS |
125 (Total 3200) |
DATA_SET |
125 (Total 256) |
DEFINE |
120 |
DI |
5 |
DIRECT |
It is different according to MODBUS address. |
ESR |
34 |
EVENT_LC |
120 |
EVENT_LS |
120 |
EXTEND |
It is different according to Extend area (0~60 : Refer to <Table 2>) |
SETUP |
18 |
LOG_MEM |
125 (Total 152) |
LOG_SET |
16 |
MAP |
120 |
MEM_PAT |
125 (Total 768) |
MEM_STS |
48 |
P_COUNT |
32 |
PULSE |
12 |
RELAY |
6 |
RTC |
7 |
STATUS |
8 |
TIMERS |
4 |
USER_OP |
8 |
| <Table 1> Maximum reading size according to read type | |
| Unique Number | Data Contents |
Maximum Size |
| 0 | Real Time Values Per Phase |
33 |
| 1 | None |
1 |
| 2 | User Event Flags |
8 |
| 3 | Status Inputs |
12 |
| 4 | Relays |
6 |
| 5 | Pulse Counters |
32 |
| 6 | Real Time Values Per Phase |
33 |
| 7 | Real Time Low Values on Any Phase |
12 |
| 8 | Real Time High Values on Any Phase |
12 |
| 9 | Real Time Total Values |
13 |
| 10 | Real Time Auxiliary Values |
6 |
| 11 | Average Values Per Phase |
33 |
| 12 | Average Low Values on Any Phase |
12 |
| 13 | Average High Values on Any Phase |
12 |
| 14 | Average Total Values |
13 |
| 15 | Average Auxiliary Values |
6 |
| 16 | Present Demands |
32 |
| 17 | Total Energies |
22 |
| 18 | L1 ~ L3 Voltage, L1 ~ L3 Current Harmonics |
260 |
| 19 ~ 21 | L1 ~ L3 Voltage Odd Harmonics |
20 |
| 22 ~ 24 | L1 ~ L3 Current Odd Harmonics |
20 |
| 25 ~ 27 | Total KW, Total Kvar, Total PF Odd Harmonics |
20 |
| 28 | Minimum Real Time Values Per Phase |
33 |
| 29 | Minimum Real Time Total Values |
6 |
| 30 | Minimum Real Time Auxiliary Values |
6 |
| 31 | Minimum Demands |
19 |
| 32 | Programmable Min/Max Minimum Registers |
16 |
| 33 | Maximum Values Per Phase |
33 |
| 34 | Maximum Real Time Total Values |
6 |
| 35 | Maximum Real Time Auxiliary Values |
6 |
| 36 | Minimum Demands |
19 |
| 37 | Programmable Min/Max Maximum Registers |
16 |
| 38 | TOU System Parameters |
2 |
| 39 ~ 46 | TOU Energy #1 ~ #8 |
32 |
| 47 ~ 49 | TOU Minimum Demands #1 ~ #3 |
16 |
| 50 ~ 52 | TOU Maximum Demands #1 ~ #3 |
16 |
| 53 ~ 60 | TOU Energy #9 ~ #16 |
32 |
| <Table 2> Data contents and maximum reading size of EXTEND read type | ||
* Save contents/position by communication protocol and read type are as follows.
SATEC PM296 Communication Driver's Save Contents and Output Address by READ/WRITE Type
If you click the icon 
in protocol
option part at <Figure 1>, you can see the dialog box such as <Figure 2>. You
can also set read schedule by using this part.
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| <Figure 2> SATEC PM296 protocol's Option dialog box |
You can set read schedule by using 
, 
, 
button and
listbox of <Figure 2>.
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| <Figure 3> SATEC PM296 protocol's read schedule Add/Edit dialog box |
When you click Add button or Edit button in dialog box of <Figure 2>, dialog box of <Figure 3> is shown.
Write to direct address of controller, regardless of SCAN File.
Digital Write
You can control Relay etc or set status value(reset etc) of Power Meter by using write settings.
Digital write setting parameters are as follows :
1) PORT Connected PORT number
2) STATION ID number of Meter. (1 ~ 247)
3) Address Output address. Use decimal or hexadecimal address (Refer to contents for protocol write)
Output area(Extra1) is DIRECT, VARIABLE : Enter real output address.
Etc : Enter relative address of each output area.
4) Extra1 Area to want to output.
ALARM, AO_EXP, AO_SET, ASR, CLEAR, COMM1, COMM2, \nDATA_SET, DEFINE, DI, DIRECT, EVENT_FLG, LOG_SET, LOG_MEM, MAP, \nP_COUNT, PULSE, RELAY, RESET, RTC, SETUP, TIMER, USER_OP
ALARM : Writing Alarm Setpoint Register,
AO_EXP : Writing Analog Output Expander Setup,
AO_SET : Writing Analog Output Setup,
ASR : Writing Alarm Status Register,
CLEAR : Reset Energy/Maximum Demands,
COMM1 : Writing Comm1 Communication Parameter,
COMM2 : Writing Comm1 Communication Parameter,
DATA_SET : Writing Data Log Setup,
DEFINE : Writing User-Defined Data,
DI : Writing Digital Inputs Allocation,
DIRECT : Writing Direct MODBUS Data (Read specific MODBUS address) - Outputable area only,
EVENT_FLG : Writing User Event Flag1 ~ 8 (Write Only Registers),
EXTEND : Writing Extend Data, Classifying by Extend area(0~60 : Refer to <Table 2>),
LOG_MEM : Writing Log Memory Partitions Setup,
LOG_SET : Writing Data Log Setup,
MAP : Writing User Definable Register,
P_COUNT : Writing Pulse Counters Setup,
PULSE : Writing Pulse Setpoint,
RELAY : Writing Changing Relay status value(ON/OFF),
RESET : Reset the Power Meter (When address is 0000),
RTC : RTC Output (Current time),
TIMERS : Writing Timers Setup,
USER_OP : Writing User Selectable Option.
5) Extra2 When output area is PULSE : Enter Parameter ID 0 ~ 7 value.
When output area is EXTEND : 0 ~ 60, Designate Extend area. (Refer to <Table 2>)
Etc : Don't care.
Reference) SATEC PM296 communication driver's Save Contents/Address by Write Type
Write example 1)
Station : 1 Address : 0000 Extra1 : CLEAR, EXTRA2 : Blank
If you set as above and write digital value, you can Reset(Clear) Energy/Maximum Demands value of no.1 Station Power Meter.
Write example 2)
Station : 1 Address : 0000 Extra1 : RELAY, EXTRA2 : Blank
If you set as above and write digital value, you can control(ON/OFF) no.1(first) digital Relay of no.1 Station Power Meter.
Write example 3)
Station : 1 Address : 0001 Extra1 : RELAY, EXTRA2 : Blank
If you set as above and write digital value, you can control(ON/OFF) no.2(second) digital Relay of no.1 Station Power Meter.
Write example 4)
Station : 1 Address : 0000 Extra1 : RESET, EXTRA2 : Blank
If you set as above and write digital value, you can restart(Warm Start) no.1 Station Power Meter.
Analog Write
Analog write means writing BYTE/WORD/DWORD/FLOAT value to Meter.
Analog write and digital write have the same settings, but output value is only different.
Write example 1)
Station : 1 Address : 0001 Extra1 : SETUP, EXTRA2 : Blank
If you set as above and write analog value(in case of ASCII protocol) as 5.5, you can change PT value of no.1 Station Power Meter as 5.1.
Write example 2)
Station : 1 Address : 0002 Extra1 : SETUP, EXTRA2 : Blank
If you set as above and write analog value as 100, you can change CT Primary Current value of no.1 Station Power Meter as 100.
Write example 3)
Station : 2 Address : 0002 Extra1 : COMM, EXTRA2 : Blank
If you set as above and write analog value as 1, you can change Address of no.1 Station Power Meter as no.1.
Write example 4)
Station : 1 Address : 0003 Extra1 : COMM, EXTRA2 : Blank
If you set as above and write analog value as 7, you can change communication speed(Com Baud) of no.1 Station Power Meter as 19200bps.
Connection method for RS-232C(COM1) communication cable
Connect general RS-232C communication cable to COM1(9pin terminal) of SATEC PM296 Meter. (Possible to connect as informal wiring)
Connection method for RS-485(COM1) communication cable
Connect +terminal of SATEC PM296 Meter by Shorting Rx+, Tx+ of computer side,
and connect -terminal by Shorting Rx-, Tx- of computer side.
Computer side SATEC PM296 side
Tx+, Rx+ --------------------------------- +
Tx-, Rx- ----------------------------------- -
Connection method for RS-422/485(COM2) communication cable
Connect Tx+, Tx- terminal of SATEC PM296 Meter to Rx+, Rx- of computer side,
and connect Rx+, Rx- terminal to Tx+, Tx- of computer side.
Computer side SATEC PM296 side
Tx+ --------------------------------- Rx+
Tx- ---------------------------------- Rx-
Rx+ --------------------------------- Tx+
Rx- ---------------------------------- Tx-
Basic power connection
Connect power(95 ~ 250V, 45/65 HZ AC or 90 ~ 330 V DC) to no.15, no.16 terminal(Refer to <Figure 4>) of SATEC RPT296.
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| <Figure 4> Back side of SATEC PM296 Power Meter |
Setting the Meter Address and communication speed
You can change Power Meter Address(1 ~ 247), communication speed etc by using operation switch of the front of SATEC PM296 Power Meter or communication output.
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| <Figure 5> Front side of SATEC PM296 Power Meter |