Satec EM133 User manual

EM133 Multifunction Meter
CANopen Communications Protocol
Reference Guide
BG0592 Rev. A1

2
Every effort has been made to ensure that the material herein is complete and
accurate. However, the manufacturer is not responsible for any mistakes in printing or
faulty instructions contained in this book. Notification of any errors or misprints will be
received with appreciation.
For further information regarding a particular installation, operation or maintenance of
equipment, contact the manufacturer or your local representative or distributor.
REVISION HISTORY
A1
February
2016
Release
AnyBus® is a registered trademark of HMS Industrial Networks AB.

3
Table of Contents
1GENERAL...........................................................................................................5
2CANOPEN PROTOCOL IMPLEMENTATION....................................................6
2.1 CANOPEN ELECTRONIC DATA SHEET (EDS) FILE .....................................................................6
2.2 CANOPEN VERSION.................................................................................................................6
2.3 BAUD RATES ...........................................................................................................................6
2.4 NODE ADDRESS.......................................................................................................................6
2.5 INPUT AND OUTPUT BUFFERS ...................................................................................................6
2.6 EXTENDED DIAGNOSTIC DATA ..................................................................................................6
2.7 CANOPEN FAULT ACTION ........................................................................................................6
BUS IN OFF-LINE MODE .........................................................................................................................6
BUS IN IDLE MODE ................................................................................................................................6
FAIL-SAFE OUTPUTS STATE ...................................................................................................................6
2.8 CANOPEN MESSAGING PROTOCOL ..........................................................................................7
OVERVIEW ...........................................................................................................................................7
DATA TYPES.........................................................................................................................................7
DATA ADDRESSING ...............................................................................................................................7
MASTER REQUEST BLOCK .....................................................................................................................7
DEVICE RESPONSE BLOCK ....................................................................................................................9
NODE GUARDING ................................................................................................................................10
TRANSFER SYNCHRONIZATION .............................................................................................................10
16-BIT SCALED ANALOG DATA .............................................................................................................11
3DEVICE REGISTER MAP.................................................................................13
3.1 ANALOG REGISTERS,BINARY REGISTERS AND COUNTERS ......................................................13
Special Inputs ...................................................................................................................................... 13
Digital Inputs DI1-D2 ............................................................................................................................ 13
Relay Output RO1................................................................................................................................ 13
Counters .............................................................................................................................................. 13
1-Cycle Phase Values.......................................................................................................................... 13
1-Cycle Total Values............................................................................................................................ 14
1-Cycle Auxiliary Values ...................................................................................................................... 14
Phasor.................................................................................................................................................. 15
1-Second Phase Values....................................................................................................................... 15
1-Second Total Values......................................................................................................................... 16
1-Second Auxiliary Values ................................................................................................................... 17
Present Volt, Ampere and Power Demands......................................................................................... 17
Total Energies...................................................................................................................................... 18
Phase Energies.................................................................................................................................... 18
V1/V12 Harmonics ............................................................................................................................... 18
V2/V23 Harmonics ............................................................................................................................... 19
V3/V31 Harmonics ............................................................................................................................... 19
I1 Harmonics........................................................................................................................................ 19
I2 Harmonics........................................................................................................................................ 19
I3 Harmonics........................................................................................................................................ 19
Fundamental Phase Values ................................................................................................................. 20
Fundamental Total Values ................................................................................................................... 20
Minimum 1-Cycle Phase Values .......................................................................................................... 20
Minimum 1-Cycle Total Values ............................................................................................................ 20
Minimum 1-Cycle Auxiliary Values....................................................................................................... 21
Maximum 1-Cycle Phase Values ......................................................................................................... 21
Maximum 1-Cycle Total Values ........................................................................................................... 21
Maximum 1-Cycle Auxiliary Values...................................................................................................... 21
Maximum Demands ............................................................................................................................. 21
TOU Parameters.................................................................................................................................. 22
Scaled Analog Outputs ........................................................................................................................ 22
TOU Energy Register #1...................................................................................................................... 22

4
TOU Energy Register #2...................................................................................................................... 22
TOU Energy Register #3...................................................................................................................... 22
TOU Energy Register #4...................................................................................................................... 22
Billing Summary Accumulated Demands ............................................................................................. 22
Billing Summary Block Demands ......................................................................................................... 23
Billing Summary Sliding Window Demands ......................................................................................... 23
Billing Summary Maximum Demands .................................................................................................. 23
TOU Maximum Demand Register #1 ................................................................................................... 23
TOU Maximum Demand Register #2 ................................................................................................... 23
TOU Maximum Demand Register #3 ................................................................................................... 23
TOU Maximum Demand Register #4 ................................................................................................... 23
V1/V12 Harmonic Angles ..................................................................................................................... 23
V2/V23 Harmonic Angles ..................................................................................................................... 24
V1/V31 Harmonic Angles ..................................................................................................................... 24
I1 Harmonic Angles.............................................................................................................................. 24
I2 Harmonic Angles.............................................................................................................................. 24
I3 Harmonic Angles.............................................................................................................................. 24
Setpoint Status SP1-SP16................................................................................................................... 24
3.2 MINIMUM/MAXIMUM LOG REGISTERS ......................................................................................25
Minimum Phase Values ....................................................................................................................... 25
Minimum Total Values.......................................................................................................................... 25
Minimum Auxiliary Values .................................................................................................................... 25
Maximum Phase Values ...................................................................................................................... 25
Maximum Total Values......................................................................................................................... 26
Maximum Auxiliary Values ................................................................................................................... 26
Billing Summary Maximum Demands .................................................................................................. 26
Maximum Demands ............................................................................................................................. 26
TOU Maximum Demand Register #1 ................................................................................................... 27
TOU Maximum Demand Register #2 ................................................................................................... 27
TOU Maximum Demand Register #3 ................................................................................................... 28
TOU Maximum Demand Register #4 ................................................................................................... 28
3.3 DEVICE CONTROL AND STATUS REGISTERS ............................................................................29
Device Reset/Clear Registers .............................................................................................................. 29
Device Status Registers....................................................................................................................... 29
Alarm Notification Registers................................................................................................................. 29
Device Identification............................................................................................................................. 29
3.4 DEVICE SETUP REGISTERS ....................................................................................................30
Factory Device Settings and Identification ........................................................................................... 30
Device Data Scales.............................................................................................................................. 30
Communication Ports Setup ................................................................................................................ 31
Basic Setup.......................................................................................................................................... 31
Device Options Setup .......................................................................................................................... 32
Clock Setup.......................................................................................................................................... 33
4DATA SCALES AND UNITS ............................................................................34
Data Scales.......................................................................................................................................... 34
Data Units –Low Resolution Option .................................................................................................... 34
Data Units –High Resolution Option ................................................................................................... 34
5DATA FORMATS .............................................................................................35
Timestamp ........................................................................................................................................... 35
Wiring Mode......................................................................................................................................... 35
Device Diagnostics .............................................................................................................................. 35
Device Options..................................................................................................................................... 35
6DEVICE ELECTRONIC DATA SHEET (EDS) FILE .........................................37

5
1General
This document specifies the EM133 CANopen messaging protocol used to transfer data
between a master CANopen station and the EM133. Refer to the EM133 Installation and
Operation Manual for information on configuring communication parameters and electrical
connections.
IMPORTANT
In 3-wire connection schemes, the unbalanced current and phase readings for power
factor, active power, and reactive power will be zeros, because they have no meaning.
Only the total three-phase power values will be shown.

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2CANopen Protocol Implementation
2.1 CANopen Electronic Data Sheet (EDS) File
The EM133 uses the certified AnyBus®-IC CANopen communication module from HMS
Industrial Networks AB. The Electronic Data Sheet (EDS) file EDS_ABIC_COP_V_1_01.eds
is shown in Section 6 and is provided with the device on an accompanying CD.
2.2 CANopen Version
The EM133 uses by default the CANopen protocol version 4.
2.3 Baud Rates
The EM133 supports 20 kbps, 50 kbps, 125 kbps, 250 kbps, 500 kbps, 800 kbps and
1Mbps baud rates with automatic baud rate detection, so the actual baud rate is only
configured in the CANopen master. The baud rate indicated in the EM133 setup shows the
baud rate used in communications between the device CPU and the CANopen
communication module and does not concern the CANopen baud rate.
2.4 Node Address
The CANopen node address can be manually set to the range of 0 to 126. When it is set to
126 (factory default).
The node address can be changed via the Serial Ports setup in the supplemental PAS
software.
The node address is saved to the device setup and can be inspected from the device front
panel.
2.5 Input and Output Buffers
The EM133 provides 32 bytes input and 32 bytes output buffers.
2.6 Extended Diagnostic Data
The EM133 does not support Extended Diagnostic Data.
2.7 CANopen Fault Action
Bus in Off-line Mode
When the CANopen goes off-line, the fieldbus outputs are cleared.
Bus in Idle Mode
When the CANopen goes to idle, the fieldbus outputs are cleared.
Fail-safe Outputs State
The fail-safe state for CANopen outputs is either zeroed outputs or frozen outputs so that
their contents would not be taken by the device as a new master command when the
CANopen goes to on-line.

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2.8 CANopen Messaging Protocol
Overview
Since the EM133 transfer buffers only support 32 bytes or less transfer blocks, all of the
device registers cannot possibly be sent over CANopen every scan. However, a messaging
mechanism allows a master to access all the device registers by placing a command
request pointing to the requested items in the output buffer and by receiving a
corresponding response in the input buffer. The CANopen master can access these output
and input buffers by writing to and reading from CANopen manufacturer-specific objects
using the PDO (Process Data Objects) communication mechanism with 11-bit CAN-ID (see
“Master Request Block” and “Device Response Block” below).
Since CANopen supports cyclic data transfer between a master and a slave that is suitable
for time critical data, a master command is sent constantly from a CANopen master to the
EM133. The device always handles read requests and the response block is normally
updated every 2ms (Inhibit time = 0). however, a write request is handled only once, that
is, the device ignores duplicate write commands. This means that a write command sent
multiple times would be handled only once. To send a write command once again, toggle
the synchronization bit in the control word (see “Master Request Block” below) so the
command frame would look different.
Data Types
Data transferred through the CANopen input and output buffers is represented in big
endian format: the bytes are ordered from least significant at the highest address to most
significant at the lowest address. Data is always transferred in integer format. Negative
numbers are represented in 2-complement code.
A CANopen master can request data either in 16-bit word format (unsigned UINT16 or
signed INT16 integers), or in 32-bit double word format (unsigned UINT32 or signed
INT32 long integers). 32-bit integers are sent in two adjacent words –most significant at
the lowest address. Up to 14 words can be read or written by a single master request –
14 data items using 16-bit format or 7 data items using 32-bit format.
The value range allowed for 16-bit data is 0 to 65535 for unsigned numbers and –32768
to 32767 for signed numbers. If the requested data exceeds a 16-bit word range, it is
truncated to the maximum allowable negative or positive number and the “over-range
error” exception code is set in the control word. When over-range occurs, an unsigned
value is reported as 65535, a positive signed value as 32767 and a negative signed value
as -32768. To avoid over-range errors with 16-bit integers, linear scaling may be applied
to analog data registers (see “16-bit Scaled Data”). Scaling cannot be used with counters
and bit-mapped binary registers. Whether scaling is to be used or not is specified in the
CANopen master request.
Data Addressing
Device data registers are addressed using 16-bit point identifiers (ID) that are given
throughout this guide in four-digit hexadecimal notation.
In the master request and the device response messages, data addresses are defined by
two parameters: a start point ID that opens a data block being read or written, and a
word count that specifies the number of consecutive words in the block.
Master Request Block
The request block size can vary from 4 to 32 bytes. Request formats for reading data
from and writing data to the device are shown in Tables 2-1 and 2-2. The first two words
contain a control word and a point ID (word size) for the first data item being accessed.
The requested data block size is specified in 16-bit words. In the event of 32-bit data, the
number of words must be even and would be twice the number of items being read or
written. Uneven word count will cause an “Invalid address” exception.

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Table 2-1 Read Request Block
Bytes
Description
Range
Type
Notes
0,1
Command control
See Table 2-3
UINT16
2,3
Start point ID
0x0000-0xFFFF
UINT16
Table 2-2 Write Request Block
Bytes
Description
Range
Type
Notes
0,1
Command control
See Table 2-3
UINT16
2,3
Start point ID
0x0000-0xFFFF
UINT16
4-31
Data block
INT16/INT
32
32-bit integers occupy two
16-bit words –most
significant first
Table 2-3 Request Control
Byte
Bits
Description
Range
Notes
0
0-1
Operation
00=No operation
01=Read
10=Write
11=Clear
“Clear” and “No operation” remove the last
master command sent and clear the CANopen
input buffer. After the device restarts, “Write”
commands are ignored until “Clear” or “Read” is
sent first for device synchronization.
2
Data type
0=32-bit integer
1=16-bit integer
32-bit integers occupy two 16-bit words –most
significant first
3
Unused
4
16-bit linear
scaling
0=disabled
1=enabled
Only applied to 16-bit analog registers. Will not
affect binary registers and counters.
5-6
Unused
7
Synchronization
bit
0-1
Toggle the bit to synchronize a response
1
0-3
Word count
1-14
Defines the number of words in the data block
4-7
Unused
Note: Bit 0 is a least significant bit (LSB).
The following table describes the mapping between RPDOs and data bytes received by the
EM133:
Table 2-4 RPDO-EM133 Received Data Bytes Mapping
Communication object
COB ID [hex]
EM133 Received Bytes
RPDO1
0x200 + Node ID (e.g. 0x027E for Node ID = 126)
Byte #0 ÷ Byte #7
RPDO2
0x300 + Node ID (e.g. 0x037E for Node ID = 126)
Byte #8 ÷ Byte #15
RPDO3
0x400 + Node ID (e.g. 0x047E for Node ID = 126)
Byte #16 ÷ Byte #23
RPDO4
0x500 + Node ID (e.g. 0x057E for Node ID = 126)
Byte #24 ÷ Byte #31
Example:
In order to read seven data points in a double word format (32 bits), i.e. 14 words,
starting with point 0x0C00 (V1-V3, I1-I3, kW L1, see section 3.1 below), from EM133
with CANopen Node ID = 126, the CANopen master writes a request as follows:
COB ID
DLC
Byte 1
Byte 2
Byte 3
Byte 4
Byte 5
Byte 6
Byte 7
Byte 8
2
7
E
8
0
1
0
E
0
C
0
0
0
0
0
0
0
0
0
0
The first byte (Byte 1) contains a READ command (0x01), the second byte requests
reading of 14 words (0x0E), and bytes 3 and 4 specify the start point address of 0x0C00.
The CANopen master can request the EM133 to transmit TPDO1÷TPDO4 that contains the
data it needs by sending an empty TPDOs with the RTR flag.

9
Device Response Block
The device response block size can vary from 6 to 32 bytes. The device response block
formats are shown in Tables 2-5 and 2-6.
Successful read and write are acknowledged by the retransmission of bytes 0-3 of the
master request. Negative response is acknowledged by the retransmission of bytes 0-3 of
the master request with a non-zero exception code in byte 1. Note that the scaling bit in
byte 0 may be dropped if there is actually no scaled data in the response message.
Table 2-5 Read Response Block
Bytes
Description
Range
Type
Notes
0,1
Response control
See Table 2-7
UINT16
2,3
Start point ID
0x0000-0Xffff
UINT16
4-31
Data block
INT16/INT
32
32-bit integers occupy two
16-bit words –most
significant first
Table 2-6 Write Response Block
Bytes
Description
Range
Type
Notes
0,1
Response control
See Table 2-7
UINT16
2,3
Start point ID
0x0000-0xFFFF
UINT16
4-31
Unused
0
Table 2-7 Response Control
Byte
Bits
Description
Range
Notes
0
0-1
Operation
00=data is not valid
01=read
10=write
11=data is not valid
“Data is not valid“ indicates that the data in the
device response block is not reliable and should
not be concerned
2
Data type
0=32-bit integer
1=16-bit integer
32-bit integers occupy two 16-bit words –most
significant first
3
Unused
0
4
16-bit linear
scaling
0=no scaling
1=scaled data
Only 16-bit analog registers are affected. Binary
registers and counters are not scaled.
5-6
Unused
0
7
Synchronization
bit
0-1
Synchronized with the master synchronization
bit when command handling is completed
1
0-3
Word count
0-14
Indicates the number of words in the data block
4-7
Exception code
See Table 2-8
Note: Bit 0 is a least significant bit (LSB).
Table 2-8 Exception Codes
Code
Exception
Cause
Notes
0
No exception
1
Illegal
operation
The requested operation is not allowed for the
point
The request is discarded
2
Illegal
address
1. Start point ID points to an inexistent point
2. The number of requested points exceeds the
actual number of points available
3. Uneven word count with 32-bit data type
The request is discarded
3
Illegal data
Written data is out of the allowable range
The request is discarded
4
Over-range
error
The requested data cannot be transmitted using
16-bit data type
The request is handled with
over-ranged points being
truncated to a maximum
allowable 16-bit negative or
positive number.
The operation field in the device response indicates that the data in the response block is
valid and can be handled by the master. The master should not concern the data in the
device response block if this field contains an invalid code, or the exception field contains
a non-zero value.
The following table describes the mapping between TPDOs and data bytes sent by the
EM133:

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Table 2-9 TPDO-EM133 Sent Data Bytes Mapping
Communication object
COB ID [hex]
EM133 Sent Bytes
TPDO1
0x180 + Node ID (e.g. 0x01FE for Node ID = 126)
Byte #0 ÷ Byte #7
TPDO2
0x280 + Node ID (e.g. 0x02FE for Node ID = 126)
Byte #8 ÷ Byte #15
TPDO3
0x380 + Node ID (e.g. 0x03FE for Node ID = 126)
Byte #16 ÷ Byte #23
TPDO4
0x480 + Node ID (e.g. 0x04FE for Node ID = 126)
Byte #24 ÷ Byte #31
Example:
The device response to the example request in “Master Request Block” above is as
following:
COB ID
DLC
Byte 1
Byte 2
Byte 3
Byte 4
Byte 5
Byte 6
Byte 7
Byte 8
1
F
E
8
0
1
0
E
0
C
0
0
0
0
0
0
0
4
8
A
2
F
E
8
0
0
0
0
0
4
8
A
0
0
0
0
0
4
8
C
3
F
E
8
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
4
F
E
8
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
The first four bytes of the response (TPDO1 Bytes 1-4) just repeat the master request
"010E0C00" and the following bytes contain requested data, each point four bytes (32
bits) long, high order bytes first:
TPDO1 Bytes 5-8 (V1): "0000048A" in hex, or 1162 decimal. Asuming the meter PT ratio
is set 1.0, the voltage unit is 0.1V and the actual V1 reading is 116.2V.
TPDO2 Bytes 1-4 (V2): "0000048A" in hex, or 1162 decimal, so the actual V2 reading is
116.2V.
TPDO2 Bytes 5-8 (V3): "0000048C" in hex, or 1164 decimal, so the actual V3 reading is
116.4V
The other requested parameters are place in the EM133 transmited data as follows:
TPDO3 Bytes 1-4: I1
TPDO3 Bytes 5-8: I2
TPDO4 Bytes 1-4: I3
TPDO4 Bytes 5-8: kW L1
The values of these parameters are calculated as showed for the phase voltages.
Node Guarding
The EM133 CANopen module is not configured to use Heartbeat Node Guarding by
default. Hense the CANopen master should either configure the node to use the Heartbeat
protocol or use the “Guard Time” node guarding protocol for checking whether a node is
"alive" or not.
Transfer Synchronization
When a master request is responded, the response synchronization bit is synchronized
with the master synchronization bit. Since CANopen master transfers are handled in a
cyclic fashion (as mentioned in the “Overview” section above), this bit allows the master
to control a sequence of pairs “request-response” by simply toggling the synchronization
bit in the successive master requests.
In write requests, repeated writes will not be handled if the synchronization bit does not
change. If a number of successive writes is required, either toggle the synchronization bit,
or send a “Read” or “Clear” command after each write to clear your previous write
command.

11
After the device restarts, the first time synchronization should be done by sending either
a “Read” or “Clear” command. The “Write” commands sent immediately after the device
restarts will be ignored until the CANopen link is synchronized.
In order to provide reliable synchronous reads and writes in a natively asynchronous
CANopen environment, it is recommended to follow a couple of simple rules:
1. Do not change control byte 0 in the request buffer until all other parameters
are set. This guarantees that your request will not be carried out while you
change the point address or data. Write byte 0 with your new command after
you completed setup of the remaining bytes.
2. Do not leave your write command in the request buffer for a long time.
Remove it immediately with a “Clear” or “Read” command after you received
an acknowledgement.
16-bit Scaled Analog Data
To avoid over-range errors with 16-bit data, liner scaling may be used to scale 32-bit
analog readings to 16-bit integer format. When 16-bit data is requested by the master
and the scaling bit in the master request is set to 1, any analog register (excluding setup
data, counters and binary bit-mapped registers) will be scaled to the range of -32768 to
32767 for bi-directional parameters (such as power and power factor), and to the range
of 0 to 32767 for single-ended positive parameters (voltage, current, frequency, etc.). To
get a true reading, the reverse conversion should be done using the following formula:
Y = ((X –RAW_LO)

(ENG_HI –ENG_LO)) /(RAW_HI –RAW_LO) + ENG_LO
where:
Y
-
True reading in engineering units
X
-
Raw input data in the range of RAW_LO to RAW_HI
ENG_LO,
ENG_HI
-
Data low and high scales in engineering units (see Section 4 for device data
scales)
RAW_LO
-
Low conversion scale for raw device data:
RAW_LO = -32768 for a point with a negative LO scale,
RAW_LO = 0 for a point with a zero or positive LO scale
RAW_Hi
-
High conversion scale for raw device data: RAW_HI = 32767
Refer to Section 4 “Data Scales and Units” for applicable data scales and measurement
units. The default voltage scale in the device is 144V (120V+20%). It can be changed via
the supplemental PAS software. The recommended voltage scale is 120V+20% = 144V
for using with external PT’s, and 690V+20% = 828V for a direct connection to power line.
NOTE: If a source data value exceeds the device engineering scale, it is truncated to a
maximum allowable negative or positive number and the “over-range error” exception
code is returned in the response control word.
CONVERSION EXAMPLES
1. Voltage readings
a) Assume device settings (direct wiring): PT ratio = 1; Voltage scale = 828V (690V + 20%).
Voltage engineering scales (see Section 4):
ENG_HI = Vmax = 828.0

PT ratio = 828.0

1 = 828.0V
ENG_LO = 0V
If the raw data reading is 4748 then the voltage reading in engineering units will be as follows:
Volts reading = (4748 –0)

(828.0 - 0)/(32767 - 0) + 0 = 120.0V
b) Assume device settings (wiring via PT): PT ratio = 14,400V : 120V = 120; Voltage scale = 144V.
Voltage engineering scales (see Section 4):
ENG_HI = Vmax = 144.0

PT ratio = 144

120 = 17,280V
ENG_LO = 0V
If the raw data reading is 27245 then the voltage reading in engineering units will be as follows:

12
Volts reading = (27245 –0)

(17,280 - 0)/(32767 –0) + 0 = 14,368V
2. Current readings
Assume device settings: CT primary current = 200A.
Current engineering scales (see Section 4):
ENG_HI = Imax = CT primary current

2 = 200.00

2 = 400.00A
ENG_LO = 0A
If the raw data reading is 819 then the current reading in engineering units will be as follows:
Amps reading = (819 –0)

(400.00 - 0)/(32767 - 0) + 0 = 10.00A
3. Power readings
a) Assume device settings (direct wiring): Wiring 4LL3; PT = 1; CT primary current = 200A; Voltage
scale = 828V.
Active Power engineering scales (see Section 4):
ENG_HI = Pmax = Vmax

Imax

2 = (828.0

1)

(200.00

2)

2 = 662,400W = 662.400kW
ENG_LO = -Pmax = -662.400kW
If the raw data reading is 18024 then the power reading in engineering units will be as follows:
Watts reading = (18024 - (-32768))

(662.400 - (-662.400))/(32767 –(-32768)) +
(-662.400) = 364.368kW
If the raw data reading is -500 then the power reading in engineering units will be as follows:
Watts reading = (-500 - (-32768))

(662.400 - (-662.400))/(32767 –(-32768)) + (-662.400) =
-10.097kW
b) Assume device settings (wiring via PT): Wiring 4LN3; PT = 120; CT primary current = 200A;
Voltage scale = 144V.
Active Power engineering scales (see Section 4):
ENG_HI = Pmax = Vmax

Imax

3 = (144

120)

(200.00

2)

3/1000 = 20,736kW
ENG_LO = -Pmax = -20,736kW
If the raw data reading is 12000 then the power reading in engineering units will be as follows:
Watts reading = (12000 - (-32768))

(20,736 - (-20,736))/(32767 –(-32768)) +
(-20,736) = 7,594kW
If the raw data reading is -5000 then the power reading in engineering units will be as follows:
Watts reading = (-5000 - (-32768))

(20,736 - (-20,736))/(32767 –(-32768)) +
(-20,736) = -3,164kW
4. Power Factor readings
Power factor engineering scales (see Section 4):
ENG_HI = 1.000.
ENG_LO = -1.000.
If the raw data reading is 29166 then the power factor in engineering units will be as follows:
Power factor reading = (29166 - (-32768))

(1.000 - (-1.000))/(32767 –(-32768)) +
(-1.000) = 0.89

13
3Device Register Map
3.1 Analog Registers, Binary Registers and Counters
Point
ID
Description
Options/Range2
Units
2
Type
R/
W
Notes
0x0000
None
0
UINT16
R
Special Inputs
0x0101
Phase rotation order
0=error, 1=positive (ABC),
2=negative (CBA)
UINT16
R
0x0600
Digital Inputs DI1-D2
0x0000-0x0003
UINT16
R
Bitmap: 0=open, 1=closed
0x0800
Relay Output RO1
0x0000-0x0001
UINT16
R
Bitmap: 0=open, 1=closed
Counters
0x0A00
Counter #1
0-999,999,999
UINT32
R/W
0x0A01
Counter #2
0-999,999,999
UINT32
R/W
0x0A02
Counter #3
0-999,999,999
UINT32
R/W
0x0A03
Counter #4
0-999,999,999
UINT32
R/W
1-Cycle Phase Values
0x0C00
V1/V12 Voltage
0-Vmax
U1
UINT32
R
1
0x0C01
V2/V23 Voltage
0-Vmax
U1
UINT32
R
1
0x0C02
V3/V31 Voltage
0-Vmax
U1
UINT32
R
1
0x0C03
I1 Current
0-Imax
U2
UINT32
R
0x0C04
I2 Current
0-Imax
U2
UINT32
R
0x0C05
I3 Current
0-Imax
U2
UINT32
R
0x0C06
kW L1
-Pmax-Pmax
U3
INT32
R
0x0C07
kW L2
-Pmax-Pmax
U3
INT32
R
0x0C08
kW L3
-Pmax-Pmax
U3
INT32
R
0x0C09
kvar L1
-Pmax-Pmax
U3
INT32
R
0x0C0A
kvar L2
-Pmax-Pmax
U3
INT32
R
0x0C0B
kvar L3
-Pmax-Pmax
U3
INT32
R
0x0C0C
kVA L1
0-Pmax
U3
UINT32
R
0x0C0D
kVA L2
0-Pmax
U3
UINT32
R
0x0C0E
kVA L3
0-Pmax
U3
UINT32
R
0x0C0F
Power factor L1
-1000-1000
0.00
1
INT16
R
0x0C10
Power factor L2
-1000-1000
0.00
1
INT16
R
0x0C11
Power factor L3
-1000-1000
0.00
1
INT16
R
0x0C12
V1/V12 Voltage THD
0-9999
0.1
%
UINT16
R
1 2-cycle value
0x0C13
V2/V23 Voltage THD
0-9999
0.1
UINT16
R
1 2-cycle value

14
Point
ID
Description
Options/Range2
Units
2
Type
R/
W
Notes
%
0x0C14
V3/V31 Voltage THD
0-9999
0.1
%
UINT16
R
1 2-cycle value
0x0C15
I1 Current THD
0-9999
0.1
%
UINT16
R
2-cycle value
0x0C16
I2 Current THD
0-9999
0.1
%
UINT16
R
2-cycle value
0x0C17
I3 Current THD
0-9999
0.1
%
UINT16
R
2-cycle value
0x0C18
I1 K-Factor
10-9999
0.1
UINT16
R
2-cycle value
0x0C19
I2 K-Factor
10-9999
0.1
UINT16
R
2-cycle value
0x0C1A
I3 K-Factor
10-9999
0.1
UINT16
R
2-cycle value
0x0C1B
I1 Current TDD
0-1000
0.1
%
UINT16
R
2-cycle value
0x0C1C
I2 Current TDD
0-1000
0.1
%
UINT16
R
2-cycle value
0x0C1D
I3 Current TDD
0-1000
0.1
%
UINT16
R
2-cycle value
0x0C1E
V12 Voltage
0-Vmax
U1
UINT16
R
0x0C1F
V23 Voltage
0-Vmax
U1
UINT16
R
0x0C20
V31 Voltage
0-Vmax
U1
UINT16
R
1-Cycle Total Values
0x0F00
Total kW
-Pmax-Pmax
U3
INT32
R
0x0F01
Total kvar
-Pmax-Pmax
U3
INT32
R
0x0F02
Total kVA
0-Pmax
U3
UINT32
R
0x0F03
Total PF
-1000-1000
0.00
1
INT16
R
0x0F04
Total PF lag
0-1000
0.00
1
UINT16
R
0x0F05
Total PF lead
0-1000
0.00
1
UINT16
R
0x0F06
Total kW import
0-Pmax
U3
UINT32
R
0x0F07
Total kW export
0-Pmax
U3
UINT32
R
0x0F08
Total kvar import
0-Pmax
U3
UINT32
R
0x0F09
Total kvar export
0-Pmax
U3
UINT32
R
0x0F0A
3-phase average L-N/L-L voltage
0-Vmax
U1
UINT32
R
1
0x0F0B
3-phase average L-L voltage
0-Vmax
U1
UINT32
R
0x0F0C
3-phase average current
0-Imax
U2
UINT32
R
1-Cycle Auxiliary Values
0x1000
Not used
UINT32
R
0x1001
In (neutral) Current
0-Imax
U2
UINT32
R
0x1002
Frequency
0-Fmax
0.01
UINT16
R

15
Point
ID
Description
Options/Range2
Units
2
Type
R/
W
Notes
Hz
0x1003
Voltage unbalance
0-3000
0.1
%
UINT16
R
0x1004
Current unbalance
0-3000
0.1
%
UINT16
R
Phasor
0x1080
V1/V12 Voltage magnitude
0-Vmax
U1
UINT32
R
1
0x1081
V2/V23 Voltage magnitude
0-Vmax
U1
UINT32
R
1
0x1082
V3/V31 Voltage magnitude
0-Vmax
U1
UINT32
R
1
0x1083
Not used
UINT32
R
0x1084
I1 Current magnitude
0-Imax
U2
UINT32
R
0x1085
I2 Current magnitude
0-Imax
U2
UINT32
R
0x1086
I3 Current magnitude
0-Imax
U2
UINT32
R
0x1087
Not used
UINT32
R
0x1088
V1/V12 Voltage angle
-1800-1800
0.1º
INT16
R
1
0x1089
V2/V23 Voltage angle
-1800-1800
0.1º
INT16
R
1
0x108A
V3/V31 Voltage angle
-1800-1800
0.1º
INT16
R
1
0x108B
Not used
INT16
R
0x108C
I1 Current angle
-1800-1800
0.1º
INT16
R
0x108D
I2 Current angle
-1800-1800
0.1º
INT16
R
0x108E
I3 Current angle
-1800-1800
0.1º
INT16
R
0x108F
Not used
INT16
R
1-Second Phase Values
0x1100
V1/V12 Voltage
0-Vmax
U1
UINT32
R
1
0x1101
V2/V23 Voltage
0-Vmax
U1
UINT32
R
1
0x1102
V3/V31 Voltage
0-Vmax
U1
UINT32
R
1
0x1103
I1 Current
0-Imax
U2
UINT32
R
0x1104
I2 Current
0-Imax
U2
UINT32
R
0x1105
I3 Current
0-Imax
U2
UINT32
R
0x1106
kW L1
-Pmax-Pmax
U3
INT32
R
0x1107
kW L2
-Pmax-Pmax
U3
INT32
R
0x1108
kW L3
-Pmax-Pmax
U3
INT32
R
0x1109
kvar L1
-Pmax-Pmax
U3
INT32
R
0x110A
kvar L2
-Pmax-Pmax
U3
INT32
R
0x110B
kvar L3
-Pmax-Pmax
U3
INT32
R
0x110C
kVA L1
0-Pmax
U3
UINT32
R
0x110D
kVA L2
0-Pmax
U3
UINT32
R
0x110E
kVA L3
0-Pmax
U3
UINT32
R
0x110F
Power factor L1
-1000-1000
0.00
1
INT16
R
0x1110
Power factor L2
-1000-1000
0.00
1
INT16
R

16
Point
ID
Description
Options/Range2
Units
2
Type
R/
W
Notes
0x1111
Power factor L3
-1000-1000
0.00
1
INT16
R
0x1112
V1/V12 Voltage THD
0-9999
0.1
%
UINT16
R
1 3-sec value
0x1113
V2/V23 Voltage THD
0-9999
0.1
%
UINT16
R
1 3-sec value
0x1114
V3/V31 Voltage THD
0-9999
0.1
%
UINT16
R
1 3-sec value
0x1115
I1 Current THD
0-9999
0.1
%
UINT16
R
3-sec value
0x1116
I2 Current THD
0-9999
0.1
%
UINT16
R
3-sec value
0x1117
I3 Current THD
0-9999
0.1
%
UINT16
R
3-sec value
0x1118
I1 K-Factor
10-9999
0.1
UINT16
R
3-sec value
0x1119
I2 K-Factor
10-9999
0.1
UINT16
R
3-sec value
0x111A
I3 K-Factor
10-9999
0.1
UINT16
R
3-sec value
0x111B
I1 Current TDD
0-1000
0.1
%
UINT16
R
3-sec value
0x111C
I2 Current TDD
0-1000
0.1
%
UINT16
R
3-sec value
0x111D
I3 Current TDD
0-1000
0.1
%
UINT16
R
3-sec value
0x111E
V12 Voltage
0-Vmax
U1
UINT16
R
0x111F
V23 Voltage
0-Vmax
U1
UINT16
R
0x1120
V31 Voltage
0-Vmax
U1
UINT16
R
1-Second Total Values
0x1400
Total kW
-Pmax-Pmax
U3
INT32
R
0x1401
Total kvar
-Pmax-Pmax
U3
INT32
R
0x1402
Total kVA
0-Pmax
U3
UINT32
R
0x1403
Total PF
-1000-1000
0.00
1
INT16
R
0x1404
Total PF lag
0-1000
0.00
1
UINT16
R
0x1405
Total PF lead
0-1000
0.00
1
UINT16
R
0x1406
Total kW import
0-Pmax
U3
UINT32
R
0x1407
Total kW export
0-Pmax
U3
UINT32
R
0x1408
Total kvar import
0-Pmax
U3
UINT32
R
0x1409
Total kvar export
0-Pmax
U3
UINT32
R
0x140A
3-phase average L-N/L-L voltage
0-Vmax
U1
UINT32
R
1
0x140B
3-phase average L-L voltage
0-Vmax
U1
UINT32
R

17
Point
ID
Description
Options/Range2
Units
2
Type
R/
W
Notes
0x140C
3-phase average current
0-Imax
U2
UINT32
R
1-Second Auxiliary Values
0x1500
Not used
UINT32
R
0x1501
In (neutral) Current
0-Imax
U2
UINT32
R
0x1502
Frequency
0-Fmax
0.01
Hz
UINT16
R
0x1503
Voltage unbalance
0-3000
0.1
%
UINT16
R
0x1504
Current unbalance
0-3000
0.1
%
UINT16
R
Present Volt, Ampere and Power Demands
0x1600
V1/V12 Volt demand
0-Vmax
U1
UINT32
R
1
0x1601
V2/V23 Volt demand
0-Vmax
U1
UINT32
R
1
0x1602
V3/V31 Volt demand
0-Vmax
U1
UINT32
R
1
0x1603
I1 Ampere demand
0-Imax
U2
UINT32
R
0x1604
I2 Ampere demand
0-Imax
U2
UINT32
R
0x1605
I3 Ampere demand
0-Imax
U2
UINT32
R
0x1606
kW import block demand
0-Pmax
U3
UINT32
R
0x1607
kvar import block demand
0-Pmax
U3
UINT32
R
0x1608
kVA block demand
0-Pmax
U3
UINT32
R
0x1609
kW import sliding window demand
0-Pmax
U3
UINT32
R
0x160A
kvar import sliding window demand
0-Pmax
U3
UINT32
R
0x160B
kVA sliding window demand
0-Pmax
U3
UINT32
R
0x160C
Not used
0
UINT32
R
0x160D
Not used
0
UINT32
R
0x160E
Not used
0
UINT32
R
0x160F
kW import accumulated demand
0-Pmax
U3
UINT32
R
0x1610
kvar import accumulated demand
0-Pmax
U3
UINT32
R
0x1611
kVA accumulated demand
0-Pmax
U3
UINT32
R
0x1612
kW import predicted sliding window demand
0-Pmax
U3
UINT32
R
0x1613
kvar import predicted sliding window demand
0-Pmax
U3
UINT32
R
0x1614
kVA predicted sliding window demand
0-Pmax
U3
UINT32
R
0x1615
PF (import) at Max. kVA sliding window demand
0-1000
0.00
1
UINT16
R
0x1616
kW export block demand
0-Pmax
U3
UINT32
R
0x1617
kvar export block demand
0-Pmax
U3
UINT32
R
0x1618
kW export sliding window demand
0-Pmax
U3
UINT32
R
0x1619
kvar export sliding window demand
0-Pmax
U3
UINT32
R
0x161A
kW export accumulated demand
0-Pmax
U3
UINT32
R
0x161B
kvar export accumulated demand
0-Pmax
U3
UINT32
R
0x161C
kW export predicted sliding window demand
0-Pmax
U3
UINT32
R
0x161D
kvar export predicted sliding window demand
0-Pmax
U3
UINT32
R

18
Point
ID
Description
Options/Range2
Units
2
Type
R/
W
Notes
0x161E
Not used
UINT32
R
0x161F
Not used
UINT32
R
0x1620
Not used
UINT32
R
0x1621
Not used
UINT32
R
0x1622
In Ampere demand
0-Imax
U2
UINT32
R
Total Energies
0x1700
kWh import
0-999,999,999
kWh
UINT32
R
0x1701
kWh export
0-999,999,999
kWh
UINT32
R
0x1702
Not used
INT32
R
0x1703
Not used
UINT32
R
0x1704
kvarh import
0-999,999,999
kvarh
UINT32
R
0x1705
kvarh export
0-999,999,999
kvarh
UINT32
R
0x1706
Not used
INT32
R
0x1707
Not used
UINT32
R
0x1708
kVAh total
0-999,999,999
kVAh
UINT32
R
0x1709
Not used
UINT32
R
0x170A
Not used
UINT32
R
0x170B
kVAh import
0-999,999,999
kVAh
UINT32
R
0x170C
kVAh export
0-999,999,999
kVAh
UINT32
R
0x170D
Not used
UINT32
R
0x170E
Not used
UINT32
R
0x170F
Not used
UINT32
R
0x1710
Not used
UINT32
R
0x1711
Not used
UINT32
R
0x1712
kvarh Q1
0-999,999,999
kvarh
UINT32
R
0x1713
kvarh Q2
0-999,999,999
kvarh
UINT32
R
0x1714
kvarh Q3
0-999,999,999
kvarh
UINT32
R
0x1715
kvarh Q4
0-999,999,999
kvarh
UINT32
R
Phase Energies
0x1800
kWh import L1
0-999,999,999
kWh
UINT32
R
0x1801
kWh import L2
0-999,999,999
kWh
UINT32
R
0x1802
kWh import L3
0-999,999,999
kWh
UINT32
R
0x1803
kvarh import L1
0-999,999,999
kvarh
UINT32
R
0x1804
kvarh import L2
0-999,999,999
kvarh
UINT32
R
0x1805
kvarh import L3
0-999,999,999
kvarh
UINT32
R
0x1806
kVAh total L1
0-999,999,999
kVAh
UINT32
R
0x1807
kVAh total L2
0-999,999,999
kVAh
UINT32
R
0x1808
kVAh total L3
0-999,999,999
kVAh
UINT32
R
V1/V12 Harmonics
1
0x1900
H01 Harmonic magnitude
0-10000
0.01
%
UINT16
R

19
Point
ID
Description
Options/Range2
Units
2
Type
R/
W
Notes
0x1901
H02 Harmonic magnitude
0-10000
0.01
%
UINT16
R
...
0x1927
H40 Harmonic magnitude
0-10000
0.01
%
UINT16
R
V2/V23 Harmonics
1
0x1A00
H01 Harmonic magnitude
0-10000
0.01
%
UINT16
R
0x1A01
H02 Harmonic magnitude
0-10000
0.01
%
UINT16
R
...
0x1A27
H40 Harmonic magnitude
0-10000
0.01
%
UINT16
R
V3/V31 Harmonics
1
0x1B00
H01 Harmonic magnitude
0-10000
0.01
%
UINT16
R
0x1B01
H02 Harmonic magnitude
0-10000
0.01
%
UINT16
R
...
0x1B27
H40 Harmonic magnitude
0-10000
0.01
%
UINT16
R
I1 Harmonics
0x1C00
H01 Harmonic magnitude
0-10000
0.01
%
UINT16
R
0x1C01
H02 Harmonic magnitude
0-10000
0.01
%
UINT16
R
...
0x1C27
H40 Harmonic magnitude
0-10000
0.01
%
UINT16
R
I2 Harmonics
0x1D00
H01 Harmonic magnitude
0-10000
0.01
%
UINT16
R
0x1D01
H02 Harmonic magnitude
0-10000
0.01
%
UINT16
R
...
0x1D27
H40 Harmonic magnitude
0-10000
0.01
%
UINT16
R
I3 Harmonics
0x1E00
H01 Harmonic magnitude
0-10000
0.01
%
UINT16
R
0x1E01
H02 Harmonic magnitude
0-10000
0.01
%
UINT16
R
...

20
Point
ID
Description
Options/Range2
Units
2
Type
R/
W
Notes
0x1E27
H40 Harmonic magnitude
0-10000
0.01
%
UINT16
R
Fundamental Phase Values
2-cycle values
0x2900
V1/V12 Voltage
0-Vmax
U1
UINT32
R
1
0x2901
V2/V23 Voltage
0-Vmax
U1
UINT32
R
1
0x2902
V3/V31 Voltage
0-Vmax
U1
UINT32
R
1
0x2903
I1 Current
0-Imax
U2
UINT32
R
0x2904
I2 Current
0-Imax
U2
UINT32
R
0x2905
I3 Current
0-Imax
U2
UINT32
R
0x2906
kW L1
-Pmax-Pmax
U3
INT32
R
0x2907
kW L2
-Pmax-Pmax
U3
INT32
R
0x2908
kW L3
-Pmax-Pmax
U3
INT32
R
0x2909
kvar L1
-Pmax-Pmax
U3
INT32
R
0x290A
kvar L2
-Pmax-Pmax
U3
INT32
R
0x290B
kvar L3
-Pmax-Pmax
U3
INT32
R
0x290C
kVA L1
0-Pmax
U3
UINT32
R
0x290D
kVA L2
0-Pmax
U3
UINT32
R
0x290E
kVA L3
0-Pmax
U3
UINT32
R
0x290F
Power factor L1
-1000-1000
0.00
1
INT16
R
0x2910
Power factor L2
-1000-1000
0.00
1
INT16
R
0x2911
Power factor L3
-1000-1000
0.00
1
INT16
R
Fundamental Total Values
2-cycle values
0x2A00
Total fundamental kW
-Pmax-Pmax
U3
INT32
R
0x2A01
Total fundamental kvar
-Pmax-Pmax
U3
INT32
R
0x2A02
Total fundamental kVA
0-Pmax
U3
UINT32
R
0x2A03
Total fundamental PF
-1000-1000
0.00
1
INT16
R
Minimum 1-Cycle Phase Values
0x2C00
V1/V12 Voltage
0-Vmax
U1
UINT32
R
1
0x2C01
V2/V23 Voltage
0-Vmax
U1
UINT32
R
1
0x2C02
V3/V31 Voltage
0-Vmax
U1
UINT32
R
1
0x2C03
I1 Current
0-Imax
U2
UINT32
R
0x2C04
I2 Current
0-Imax
U2
UINT32
R
0x2C05
I3 Current
0-Imax
U2
UINT32
R
Minimum 1-Cycle Total Values
0x2D00
Total kW
-Pmax-Pmax
U3
INT32
R
0x2D01
Total kvar
-Pmax-Pmax
U3
INT32
R
0x2D02
Total kVA
0-Pmax
U3
UINT32
R
0x2D03
Total PF
0-1000
0.00
UINT32
R
Absolute value