BERG UBN310, UBN3080, UBN315 Protocol Manual

STANDARD Protocol Manual

English

Rev. 010 - 01/06/2006

1UBMSTD31010

Universal Berg Netzbaustein

UBN310

DIN 96x96 & ANSI 4” Power Meter

UBN315

DIN 96x96 & ANSI 4” LCD Power Meter

UBN3080

DIN 144x144 LCD Power Meter

www.berg-energie.de

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TABLE OF CONTENTS

STANDARD Communication Protocol

TABLE OF CONTENTS

1. INTRODUCTION 1

2. GRAPHIC SYMBOLS 2

3. DESCRIPTION 3

3.1 Communication 3

3.2 Identifi cation Code 3

3.3 Data Request Sequence 4

3.3.1 Response Sequence 5

3.4 Parameter Setting Sequence 6

3.4.1 Response Sequence 7

3.5 Check Characters 7

4. COMMANDS 8

4.1 Measured Values 8

4.2 Programmed Parameters & Other Info 12

4.3 Programmable Parameters 19

4.4 Variables List 25

4.5 Error Messages 26

5. ASCII CHARACTERS TABLE 27

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INTRODUCTION

STANDARD Communication Protocol

1. INTRODUCTION

This manual provides information on the STANDARD communication protocol. The publication is
not intended for general use, but for qualifi ed technicians.
This term indicates a professional and skilled technician, authorised to act in accordance with the
safety standards relating to the dangers posed by electric current.
This person must also have basic fi rst-aid training and be in possession of suitable Personal
Protective Equipment.

WARNING!

It is strictly forbidden, for anyone who does not have the above-mentioned
features, to install or use the device.

The device is made in compliance with the European Union directives in force, as well as in com­pliance with the technical standards implementing these requirements, as certifi ed by the CE mark
on the device and in this manual.
It is strictly forbidden to use the instrument for purposes other than those intended, which can be
deduced from the manual content.

The Manufacturer reserves the right to make changes on the device or in the device specifi cations
identifi ed in this manual without notice.
The Manufacturer declines all liability for any use of the instrument which is different from that
described in this manual and in the instrument manual, or for the lack/incorrect application of the
reported instructions.

The information, contained in this manual, may not be divulged to third parties. Any copy of this
manual, either partial or total, by photocopying, or by other means, also electronically, without
written authorization from the Manufacturer, violates the copyright and is punishable by law.

The information contained in this document is believed to be accurate at the time of publication,
however, the Manufacturer assumes no responsability for any errors which may appear here and
reserves the right to make changes without notice.

Any brands mentioned in the publication are property of their respective owners.

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GRAPHIC SYMBOLS

STANDARD Communication Protocol

2. GRAPHIC SYMBOLS

In the manual and on the device, some instructions are highlighted by symbols to draw the reader’s
attention to the operational dangers.
These symbols are the following:

DANGER!

This warning indicates the possible presence of voltage exceeding 1kV
on the marked terminals (even for short periods).

WARNING!

This warning indicates the possible occurrence of an event which may
cause a serious accident or considerable damage to the device if suitable
precautionary countermeasures are not taken.

ATTENTION!

This warning indicates the possible occurrence of an event which may
cause a light accident or damage to the device if suitable precautionary
countermeasures are not taken.

NOTE
This warning indicates important information which must be read care­fully.

3

DESCRIPTION

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STANDARD Communication Protocol

3. DESCRIPTION

3.1 Communication

The protocol specifi cations defi ne the data sequence, the programming sequence and the check
codes, necessary for a proper data communication.

This protocol allows the communication between the PC (master) and the instrument (slave).

The protocol uses an half duplex connection on a single line. In this way, the communication
messages move on a single line in two opposite directions.

It is not possible a communication between instruments, without PC, as they cannot send comman­ds; instruments are limited to reply. All the trasmitted characters are part of the ASCII code (see
chapter 5).

3.2 Identification Code

In a multi-point type connection, a code allows to identify each instrument during the communi­cation. This code, the Serial Number, is assigned to each instrument by the manufacturer.
It is made of 9 characters (numbers and letters), printed on the instrument label.

A second identifi cation code, the Logical Number, can be assigned by the user. As it is made up
of 2 ASCII characters ($01...$FF), it allows a faster communication.

The Logical Number can be changed at any time using the specifi c command (see section 4.3).
The instrument is supplied with a $01 Logical Number.

NOTE

The $00 Logical Number is used for broadcast commands. A command with
the $00 Logical number is received by all the instruments connected in the
network.

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DESCRIPTION

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STANDARD Communication Protocol

WARNING!

In an instruments network, the $00 code can be used only for sending write
commands. An interrogation would generate a simultaneous response from
all of the instruments, with the possibility of malfunctions.

3.3 Data Request Sequence

By the master, a data request sequence is sent to the instrument (slave) to read information on
the device (measured values, programmed parameters,...). This interrogation cannot change
instrument confi guration. The following description shows the correct sequence of characters for
a proper interrogation:

<STX>02R63<ETX>($51)

[begin block character]

[instrument identifi cation]

[command]

[end block character]

[check character]

[begin block character]

It is always <STX> ($02) character.

[instrument identifi cation]

It is usually represented by the Logical Number ($01...$FF). The character S ($53) can also be
used followed by the instrument Serial Number (9 alphanumeric characters).

[command]

It is always R ($52) character followed by the variable number to be read (see section 4.1), ex­pressed in hexadecimal.

[end block character]

It is always <ETX> ($03) character.

[check character]

It is a single character which results from EXCLUSIVE OR (XOR) of all the characters from <STX>
up to and including <ETX>. It is used to check the transmitted data.

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DESCRIPTION

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STANDARD Communication Protocol

3.3.1 Response Sequence

When the instrument, with the corresponding Serial Number or Logical Number, received a read
command, it replies with the following message.

<STX>+380.0<SP>.....<ETX><BCC>

[begin block character]

[data block]

[end block character]

[check character]

[begin block character]

It is always <STX> ($02) character.

[data block]

The data block format changes according to the sent command.

1. Data block of a variables group.

+380.0<SP>+13.38k...........+123.380k

Algebraic sign

Variable value with decimal point

Multiplier (see the following table)

Character Meaning Multiplier

<SP> space 1
k kilo 1000
M Mega 1000000
G Giga 1000000000

4. Error reply.
Ennn

Error code ($45)

Code relative to the error type

[end block character]

It is always <ETX> ($03) character.

[check character]

It is a single character which results from EXCLUSIVE OR (XOR) of all the characters from <STX>
up to and including <ETX>. It is used to check the transmitted data.

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DESCRIPTION

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STANDARD Communication Protocol

3.4 Parameter Setting Sequence

By the master, a programming sequence is sent to the instrument (slave) to change specifi c
parameters (instrument confi guration). The following description shows the correct sequence of
characters for a proper command.

<STX>SA1T120050W84=0A<ETX>($67)

[begin block character]

[instrument identifi cation]

[command]

[new value]

[end block character]

[check character]

[begin block character]

It is always <STX> ($02) character.

[instrument identifi cation]

It is usually represented by the Logical Number ($01...$FF). The S ($53) character can also be
used followed by the instrument Serial Number (9 alphanumeric characters).

[command]

It is always W ($57) character followed by the variable number to be changed (see section 4.3)
expressed in hexadecimal by two alphanumeric characters and always followed by the character
=($3D).

[new value]

It is a series of alphanumeric characters which express the new value, according to the assigned
parameter (see section 2.3).

[end block character]

It is always <ETX> ($03) character.

[check character]

It is a single character resulting from EXCLUSIVE OR (XOR) of all the characters from <STX> up
to and including <ETX>. It is used to check the transmitted data.

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STANDARD Communication Protocol

3.4.1 Response Sequence

When the instrument, with the corresponding Serial Number or Logical Number, received a write
command, it replies with the following message.

<STX>E000<ETX>($74)

[begin block character]

[data block]

[end block character]

[check character]

[begin block character]

It is always <STX> ($02) character.

[data block]

It is made up of E ($45) character followed by 3 numerical characters which indicate the code
relative to the error. The E000 code specifi es that the operation has been completed correctly.

[end block character]

It is always <ETX> ($03) character.

[check character]

It is a single character resulting from EXCLUSIVE OR (XOR) of all of the characters from <STX>
up to and including <ETX>, used to check the transmitted data.

3.5 Check Characters

The used check characters are the following:

<STX> Start of text ($02)

Start of text character. Preceeds the data in all frames.

<ETX> End of text ($03)

End block character.

<BCC> Block check character

It is represented by 2 digit number, obtained by the operation of EXCLUSIVE OR (XOR) carried
out on the transmitted data, as shown in the preceeding examples.

8

COMMANDS

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STANDARD Communication Protocol

4. COMMANDS

NOTE

The * symbol indicates a parameter available only when the instrument includes
the relevant option.

NOTE

“ENH” is the abbreviation for functions or parameters included only in the
Enhanced Package version of the instrument.

4.1 Measured Values (codes valid for read only)

R3D INSTRUMENT (Firmware Release 1.xx) COMPATIBLE ANSWER FORMAT
In case of wiring mode: 3Ph-4W/3CT
Answer format:

<STX> VΣ V1 V2 V3 V12 V23 V31 AΣ A1 A2 A3 THDA1 THDA2 THDA3 AN PFΣ PF1

PF2 PF3 NUL COSØ1* COSØ2* COSØ3* VAΣ VA1 VA2 VA3 WΣ W1 W2 W3 varΣ var1
var2 var3 IN1 IN2 IN3 IN4 +Wh +varhI +varhC +VAh -Wh -varhI -varhC -VAh F THDV1
THDV2 THDV3 NUL RST <ETX><BCC>

Value format:

Instantaneous values•

sign (space, +, -) + value on 4 digits with decimal point (5 characters) + multiplier

(space, m, k, M, G, T, …)

Energy counters•

sign (space, +, -) + value on 6 digits with decimal point (7 characters) + multiplier

(space, m, k, M, G, T, …)

Digital inputs•

sign (space, +, -) + value on 8 digits with decimal point (9 characters) + multiplier

(space, m, k, M, G, T, …)

Phase reversal•

sign (space, +, -) + value on 3 digits with decimal point (4 characters) + multiplier

(space, m, k, M, G, T, …)

In case of wiring mode: 3Ph-3W/2CT
Answer format:

<STX> VΣ NUL NUL NUL V12 V23 V31 AΣ A1 A2 A3 THDA1 NUL THDA3 NUL PFΣ

NUL NUL NUL NUL NUL NUL NUL VAΣ NUL NUL NUL WΣ NUL NUL NUL varΣ NUL
NUL NUL IN1 IN2 IN3 IN4 +Wh +varhI +varhC +VAh -Wh -varhI -varhC -VAh F NUL
NUL NUL NUL RST <ETX><BCC>

In case of wiring mode: 1Phase
Answer format:

<STX> NUL V1 NUL NUL NUL NUL NUL NUL A1 NUL NUL THDA1 NUL NUL NUL

NUL PF1 NUL NUL NUL COSØ1* NUL NUL NUL VA1 NUL NUL NUL W1 NUL NUL
NUL var1 NUL NUL IN1 IN2 IN3 IN4 +Wh +varhI +varhC +VAh -Wh -varhI -varhC

-VAh F THDV1 NUL NUL NUL RST <ETX><BCC>

R3D.01 MEASURED INSTANTANEOUS VARIABLES
In case of wiring mode: 3Ph-4W/3CT
Answer format:

<STX> VΣ V1 V2 V3 V12 V23 V31 AΣ A1 A2 A3 THDA1 THDA2 THDA3 AN PFΣ PF1

PF2 PF3 NUL COSØ1* COSØ2* COSØ3* VAΣ VA1 VA2 VA3 WΣ W1 W2 W3 varΣ var1
var2 var3 IN1 IN2 IN3 IN4 +Wh +varhI +varhC +VAh -Wh -varhI -varhC -VAh F THDV1
THDV2 THDV3 NUL RST <ETX><BCC>

Command Description

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STANDARD Communication Protocol

Value format:

Instantaneous values•

sign (space, +, -) + value on 4 digits with decimal point (5 characters) + multiplier

(space, m, k, M, G, T, …)

Digital inputs and Energy counters•

sign (space, +, -) + value on 8 digits with decimal point (9 characters) + multiplier

(space, m, k, M, G, T, …)

Phase reversal•

sign (space, +, -) + value on 3 digits with decimal point (4 characters) + multiplier

(space, m, k, M, G, T, …)

In case of wiring mode: 3Ph-3W/2CT
Answer format:

<STX> VΣ NUL NUL NUL V12 V23 V31 AΣ A1 A2 A3 THDA1 NUL THDA3 NUL PFΣ

NUL NUL NUL NUL NUL NUL NUL VAΣ NUL NUL NUL WΣ NUL NUL NUL varΣ NUL
NUL NUL IN1 IN2 IN3 IN4 +Wh +varhI +varhC +VAh -Wh -varhI -varhC -VAh F NUL
NUL NUL NUL RST <ETX><BCC>

In case of wiring mode: 1Phase
Answer format:

<STX> NUL V1 NUL NUL NUL NUL NUL NUL A1 NUL NUL THDA1 NUL NUL NUL

NUL PF1 NUL NUL NUL COSØ1* NUL NUL NUL VA1 NUL NUL NUL W1 NUL NUL
NUL var1 NUL NUL IN1 IN2 IN3 IN4 +Wh +varhI +varhC +VAh -Wh -varhI -varhC

-VAh F THDV1 NUL NUL NUL RST <ETX><BCC>

R3D.02 MEASURED INSTANTANEOUS VARIABLES (ENH)
In case of wiring mode:3Ph-4W/3CT
Answer format:

<STX> THDA1o THDA1e THDA2o THDA2e THDA3o THDA3e THDV1o THDV1e

THDV2o THDV2e THDV3o THDV3e <ETX><BCC>

R3D.03 MEASURED INSTANTANEOUS VARIABLES (ENH)
In case of wiring mode:3Ph-4W/3CT
Answer format**:

<STX> AT1 AT2 AT3 Vub Aub +VAI +VAC -VAI -VAC <ETX><BCC>

**: In case of 310 instrument, the apparent power values are not defi ned and ----- will

be displayed.

R3D.04 MEASURED INSTANTANEOUS VARIABLES (ENH)
In case of wiring mode:3Ph-4W/3CT
Answer format:

<STX> K1 K2 K3 <ETX><BCC>

Command Description

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STANDARD Communication Protocol

R3D.01 MEASURED INSTANTANEOUS VARIABLES
In case of wiring mode: 3Ph-4W/3CT
Answer format:

<STX> VΣ V1 V2 V3 V12 V23 V31 AΣ A1 A2 A3 THDA1 THDA2 THDA3 AN PFΣ PF1

PF2 PF3 COSØ1* COSØ2* COSØ3* VAΣ VA1 VA2 VA3 WΣ W1 W2 W3 varΣ var1
var2 var3 +Wh +varhI +varhC +VAh -Wh -varhI -varhC -VAh F THDV1 THDV2 THDV3
WDMD VADMD ADMD RST <ETX><BCC>

Value format:

Instantaneous values, parameters always positive•

value on 4 digits with decimal point (5 characters) + multiplier (space, m, k, M, G, T, …)

Instantaneous values, parameters with sign (+ or -)•

sign + value on 4 digits with decimal point (5 characters) + multiplier (space,

m, k, M, G, T, …)

Digital inputs•

value on 8 digits with decimal point (9 characters) + multiplier (space, m, k, M, G, T, …)

Energy counters•

sign + value on 8 digits with decimal point (9 characters) + multiplier (space,

m, k, M, G, T, …)

Phase reversal•

value on 3 digits with decimal point (4 characters) + multiplier (space, m, k, M, G, T, …)

In case of wiring mode: 3Ph-3W/2CT
Answer format:

<STX>VΣ NUL NUL NUL V12 V23 V31 AΣ A1 A2 A3 THDA1 NUL THDA3 NUL PFΣ

NUL NUL NUL NUL NUL NUL VAΣ NUL NUL NUL WΣ NUL NUL NUL varΣ NUL NUL
NUL +Wh +varhI +varhC +VAh -Wh -varhI -varhC -VAh F NUL NUL NUL WDMD
VADMD ADMD RST<ETX> <BCC>

In case of wiring mode: 1Ph-3W/2CT
Answer format:

<STX> VΣ V1 V2 NUL V12 NUL NUL AΣ A1 A2 NUL THDA1 THDA2 NUL AN PFΣ

PF1 PF2 NUL COSØ1* COSØ2* NUL VAΣ VA1 VA2 NUL WΣ W1 W2 NUL varΣ var1
var2 NUL +Wh +varhI +varhC +VAh -Wh -varhI -varhC -VAh F THDV1 THDV2 NUL
WDMD VADMD ADMD RST <ETX><BCC>

In case of wiring mode: 1Phase
Answer format:

<STX> NUL V1 NUL NUL NUL NUL NUL NUL A1 NUL NUL THDA1 NUL NUL NUL

NUL PF1 NUL NUL COSØ1* NUL NUL NUL VA1 NUL NUL NUL W1 NUL NUL NUL
var1 NUL NUL +Wh +varhI +varhC +VAh -Wh -varhI -varhC -VAh F THDV1 NUL NUL
WDMD VADMD ADMD RST <ETX><BCC>

R3D UPM 300A (NEW VERSION) COMPATIBLE ANSWER FORMAT
In case of wiring mode:3Ph-4W/3CT
Answer format:

<STX> VΣ V1 V2 V3 V12 V23 V31 AΣ A1 A2 A3 PFΣ PF1 PF2 PF3 VAΣ VA1 VA2

VA3 WΣ W1 W2 W3 varΣ var1 var2 var3 +Wh +varhI F WDMD ADMD RST NUL
<ETX><BCC>

Value format: see R3D

R3E UPM 300 (OLD VERSION) COMPATIBLE ANSWER FORMAT
In case of wiring mode: 3Ph-4W/3CT
Answer format:

<STX> VΣ V1 V2 V3 V12 V23 V31 AΣ A1 A2 A3 PFΣ PF1 PF2 PF3 VAΣ VA1 VA2 VA3

WΣ W1 W2 W3 var

Σ var1 var2 var3 +Wh +varhI F WDMD ADMD<ETX><BCC>

Value format: see R3D

Command Description

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STANDARD Communication Protocol

R3F DIGITAL INPUT VALUES *
Answer format:

<STX>DI1 DI2 DI3 DI4<ETX><BCC>

Value format:

See R3D.01

R64 ALL DEMAND AND MAXIMUM DEMAND VALUES
Answer format:

<STX> ADMD VADMD WDMD varDMD AmaxDMD VAmaxDMD WmaxDMD

varmaxDMD<ETX> <BCC>

R64 ALL DEMAND VALUES
Answer format:

<STX> WDMD VADMD ADMD <ETX> <BCC>

R61 ALL MAXIMUM AND MAXIMUM DEMAND VALUES
Answer format:

<STX> A1max A2max A3max AmaxDMD VAmaxDMD WmaxDMD <ETX><BCC>

R61.0 MINIMUM AND MAXIMUM VOLTAGE VALUES (ENH)
Answer format:

<STX>VΣ_min_DATE VΣ_min VΣ_Max_DATE VΣ_Max V1_min_DATE V1_min V1_Max_

DATE V1_Max V2_min_DATE V2_min V2_Max_DATE V2_Max V3_min_DATE V3_min
V3_Max_DATE V3_Max V12_min_DATE V12_min V12_Max_DATE V12_Max V23_min_
DATE V23_min V23_Max_DATE V23_Max V31_min_DATE V31_min V31_Max_DATE
V31_Max <ETX><BCC>

Where: VΣ_min_DATE:12 characters  YYMMDDHHMMSS (always in 24h format):
YY=year
MM=month
DD=day
HH=hour
MM=minute
SS=second

R61.1 MINIMUM AND MAXIMUM CURRENT VALUES (ENH)
Answer format:

<STX>AΣ_min_DATE AΣ_min AΣ_Max_DATE AΣ_Max A1_min_DATE A1_min A1_Max_

DATE A1_Max A2_min_DATE A2_min A2_Max_DATE A2_Max A3_min_DATE A3_min A3_
Max_DATE A3_Max AN_min_DATE AN_min AN_Max_DATE AN_Max<ETX><BCC>

R61.2 MINIMUM AND MAXIMUM PF AND FREQUENCY VALUES (ENH)
Answer format:

<STX>PFΣ_min_DATE PFΣ_min PFΣ_Max_DATE PFΣ_Max PF1_min_DATE PF1_min

PF1_Max_DATE PF1_Max PF2_min_DATE PF2_min PF2_Max_DATE PF2_Max PF3_min_
DATE PF3_min PF3_Max_DATE PF3_Max Freq_min_DATE Freq_min Freq_Max_DATE
Freq_Max <ETX><BCC>

R61.3 MINIMUM AND MAXIMUM THD VALUES (ENH)
Answer format:

<STX>THDV1_min_DATE THDV1_min THDV1_Max_DATE THDV1_Max THDV2_min_

DATE THDV2_min THDV2_Max_DATE THDV2_Max THDV3_min_DATE THDV3_min
THDV3_Max_DATE THDV3_Max THDA1_min_DATE THDA1_min THDA1_Max_DATE
THDA1_Max THDA2_min_DATE THDA2_min THDA2_Max_DATE THDA2_Max
THDA3_min_DATE THDA3_min THDA3_Max_DATE THDA3_Max <ETX><BCC>

Command Description

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R61.4 MAXIMUM DEMAND VALUES (ENH)
Answer format:

<STX>WDMD_Max_DATE WDMD_Max VADMD_Max_DATE VADMD_Max ADMD_

Max_DATE ADMD_Max A1DMD_Max_DATE A1DMD_Max A2DMD_Max_DATE
A2DMD_Max A3DMD_Max_DATE A3DMD_Max ANDMD_Max_DATE ANDMD_Max
AT1DMD_Max_DATE AT1DMD_Max AT2DMD_Max_DATE AT2DMD_Max AT3DMD_
Max_DATE AT3DMD_Max varDMD_Max_DATE varDMD_Max <ETX><BCC>

R64.0 DEMAND VALUES (ENH)
Answer format**:

<STX>WDMD VADMD ADMD A1DMD A2DMD A3DMD ANDMD AT1DMD AT2DMD

AT3DMD varDMD <ETX><BCC>

**: In case of 310, some parameters (A1DMD, A2DMD, A3DMD) are not defi ned and

----- will be displayed.

4.2 Programmed Parameters & Other Info

R5F ALL PROGRAMMED PARAMETERS
Answer format in case of standard instrument version:

<STX>W80;W81;W82;W84;W89;W90;W92;W98;W9B;WDA;WDB;WA1;WB1;WDE;

<ETX><BCC>

Answer format in case of ENH instrument version:

<STX>W80,W81,W82,W84,W89,WD8,W90,W92,W98,WD7,W9B,W9C,WDA,WDB,WA(0/

1),WB(0/1),WA(4/5),WB(4/5),WA(8/9)WB(8/9),WA3,WB3,WA7,WB7,WA2,WB2,WA6,WB6,WDE
<ETX><BCC>

R5F.1 ALL PROGRAMMED SET POINTS (ENH)
Answer format:

<STX>W21,W22,W23,W24,W25,W26,W27,W28,W2F<ETX><BCC>

R63 SERIAL NUMBER

R70 DATE (YY/MM/DD)

R71 TIME (HH:MM:SS)

R72 DAY OF THE WEEK
Answer format:

<STX>10 characters<ETX><BCC>

R78 INSTRUMENT FIRMWARE VERSION

R76.1 PHASE 1 VOLTAGE SAMPLES
Answer format:

<STX><SP>512 characters (128 samples per wave)<ETX><BCC>

R76.2 PHASE 2 VOLTAGE SAMPLES
Answer format:

<STX><SP>512 characters (128 samples per wave)<ETX><BCC>

R76.3 PHASE 3 VOLTAGE SAMPLES
Answer format:

<STX><SP>512 characters (128 samples per wave)<ETX><BCC>

Command Description

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STANDARD Communication Protocol

R77.1 PHASE 1 CURRENT SAMPLES
Answer format:

<STX><SP>514 characters** (128 samples per wave)<ETX><BCC>
**: The last two characters are reserved

R77.2 PHASE 2 CURRENT SAMPLES
Answer format:

<STX><SP>514 characters** (128 samples per wave)<ETX><BCC>
**: The last two characters are reserved

R77.3 PHASE 3 CURRENT SAMPLES
Answer format:

<STX><SP>514 characters** (128 samples per wave)<ETX><BCC>
**: The last two characters are reserved

R7F.001 INSTRUMENT CONFIGURATION
Answer format:

<STX>OA=02;OD=02;ID=04;SP=8;RAM=0128k;COM1<ETX><BCC>

OA number of analog outputs *
OD number of digital outputs
ID number of digital inputs *
SP number of set points (ENH)
RAM detected memory
COMx used communication port (in the instrument)

R7F.002 FULLSCALE INFORMATION
Answer format:

<STX>KTA=0001;KTV=0001.000;FSV=433;FSV3=750;FSW=0433;FSW3=1299;MSA

=12;MSA3=12; MSN=12;MSV=1000;MSV3=1000;MSW=12000;MSW3=12000;FA=0
1;CSDO=1320;<ETX><BCC=72h>

R7F.008 INFORMATION ON R3D ANSWER FORMAT
Answer format:

<STX> 00,10 01,10 02,10 03,10 04,10 05,10 06,10 08,20 09,20 0A,20 0B,20 10,13

11,13 12,13 13,13 18,21 19,21 1A,21 1B,21 20,22 21,22 22,22 23,22 28,23 29,23
2A,23 2B,23 30,24 31,25 34,11 39,22 3A,20 3B,10 3C,10<ETX><BCC=23h>

<STX> 00,10 01,10 02,10 03,10 04,10 05,10 06,10 08,20 09,20 0A,20 0B,20 0C,12

0D,12 0E,12 0F,20 10,13 11,13 12,13 13,13 FF,-- 15,13 16,13 17,13 18,21 19,21 1A,21
1B,21 20,22 21,22 22,22 23,22 28,23 29,23 2A,23 2B,23 2C,24 2D,24 1E,24 1F,24
30,24 31,25 33,25 1C,26 32,24 2E,25 2F,25 1D,26 34,11 36,12 37,12 38,12 FF,-- 3B,-

- <ETX><BCC=54h>

Where: 00 system voltage variable
, separator between variable and measurement unit
10 measurement unit

single word:

10 Volt
11 dHz
12 dperc
13 COSØ

Command Description

UBN310

UBN315

UBN3080

























UBN310

UBN315, UBN3080

14

COMMANDS

ENGLISH

STANDARD Communication Protocol

double word:

20 mA
21 VA
22 W
23 var
24 Wh
25 varh
26 VAh
<space> separator between two fi elds

R80.0 MIN / AVG / MAX RECORDING SETUP & STATUS
Answer format:

<STX>VV1,VV2,VV3,VV4,VV5,VV6,VV7,VV8,M,TT,W,YYMMDDHHMMSS(1),YYMMD-

DHHMMSS(2), DD<ETX><BCC>

VV1,VV2,…VV8 selected variable (see section 4.4)
M recording mode:0=NONE; 1=FILL; 2=RING
TT integration time to calculate the DMD: 01, 05, 10, 15, 30,

60 min or 61 in case of external (Synchronization with
DMD calculation)

W start/stop: 0=NO; 1=YES
YYMMDDHHMMSS(1) start recording date
YYMMDDHHMMSS(2) stop recording date
DD downloading data: 00=not available; 01=available

Example:

<STX>001,002,003,009,00A,00B,094,096,1,60,0,040229125559,040229125559,01

<ETX><BCC>

R80.7 RECORDINGS SIZE
Answer format:

<STX>E E E E M M M M M M W W W W V V V V<ETX><BCC>

E E E E energy recording size
M M M M M M min/avg/max recording size
W W W W waveform capture recording size (only 315/3080 ENH)
V V V V event LOG recording size (ENH)

R80.1 MIN/AVG/MAX RECORDING DOWNLOAD - FIRST DATA BLOCK

R80.2 MIN/AVG/MAX RECORDING DOWNLOAD - NEXT DATA BLOCK

R80.3 MIN/AVG/MAX RECORDING DOWNLOAD - REPEAT LAST DATA BLOCK
Answer format (R80.1, R80.2, R80.3):

<STX>00010106106418010542053A0536022902270227001600160016001600160
01600000000000004A00458031F3206320031F8...<ETX><BCC>

0001 progressive number of block transmitted
0106 total number of characters transmitted in this block

10641801....31F8 data block: YYMMDDHHMMSS+minimum, average, maximum

of selected variables expressed with a word, as a fraction
of the fullscale.Conversion is carried out by the program on
the PC during transfer

Command Description

UBN310

UBN315

UBN3080















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

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15

COMMANDS

ENGLISH

STANDARD Communication Protocol

Data conversion:

1064 0001000001100100(BIN)00010(BIN)=year:00000=20

00; 00001=2001;00010=2002;.....11111=2031 000011

00100(BIN)=day:100(DEC)-31(january)-28(february)­31(march)=10april

1801 time (HHMM)
0542 maxV1=(data*FS*PT)/32768[FS=1000]=0542(HEX)=1346

(DEC)=(1346*1000)/32768=41.08V

0229 maxA1=(data*FS*PT)/32768[FS=12]=0229(HEX)=553(DEC)
=(553*12)/32768=0.205A
0016 maxP1=(data*FS*PT)/32768[FS=12000]=0016(HEX)=(DEC)
=(22*12)/32768=8.057kW
0016 maxS1=(data*FS*PT)/32768[FS=12000]=0016(HEX)=22(DEC)
=(22*12)/32768=8.057kVA
0000 maxQ1=(data*FS*PT)/32768[FS=12000]=0000(HEX)=00(DEC)
=(00*12)/32768=0kvar
04A0 maxPF1=(7FFF-data*FS)/32768[FS=1.000]=7B5F(HEX)=31583(DEC)
=(31583)/32768=0.9638inductive
3206 maxF=(data)/128=3206(HEX)=12806(DEC)=(12806)/

256=50.02Hz

06B2 maxTHD=(data)/128=06B2(HEX)=1714(DEC)=(1714)/128=13.39%
0369 maxHarm3=(data)/128=0369(HEX)=873(DEC)=(873)/128=6.82 %

> Vunbalance, Aunbalance are calculated like THD values
> Thermal currents are calculated with the following formula:

Ath=(data) * 2 * (CT

2

)

> The parameters with sign should be preconverted as follows:

if (data)>$7FFF, means that the value is negative, and should be converted •
in complement of 2: data new = 0 - data
for PF parameters, if (data) > $7FFF => INDUCTIVE PF => the formula is: •
(data-7FFF)/32768
for PF parameters, if (data) <= $7FFF => CAPACITIVE PF => the formula •
is: (7FFF-data)/32768

R80.4 DAILY COUNTERS RECORDING DOWNLOAD - FIRST DATA BLOCK

R80.5 DAILY COUNTERS RECORDING DOWNLOAD - NEXT DATA BLOCK

R80.6 DAILY COUNTERS RECORDING DOWNLOAD - REPEAT LAST DATA BLOCK
Answer format (R80.4, R80.5, R80.6):

<STX>000100CC106100000164...<ETX><BCC>

0001 progressive number of the transmitted block
00CC total number of characters transmitted in this block
1061 date

00000164... data block: energy counters expressed in mWh, mvarh, mVAh (with

two words).

In order, in case of standard instrument version: •
+Wh,+varhI,+varhC,+VAh, -Wh,-varhI,-varhC,-VAh
In order, in case of ENH instrument version: +Wh,+varhI,+varhC,•
+VAhI,+VAhC, -Wh,-varhI,-varhC,-VAhI,-VAhC

Data conversion:

En value = decimal data*CT*PT

R80.8 WAVEFORM CAPTURE RECORDING DOWNLOAD - HEADER (ENH)
Answer format:

<STX>00010030053014150105138F3FC82000A000A000A000E000E000E0000001
1F7D000100040000<ETX><BCC>

Command Description

UBN310

UBN315

UBN3080













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16

COMMANDS

ENGLISH

STANDARD Communication Protocol

Size (bytes)
Block index 2
Block size 2
HEADER BLOCK:

Time/date 6  SSMMHHDDMMYY
Frequency 2  500750.07Hz
Captured channels 1  bit7=not used; bit6=not used; bit5=V1; bit4=V2;

bit3=V3; bit2=A1; bit1=A2; bit0=A3

1=captured; 0=not captured

Captured periods 1  1...200
Samples/period 1  08=8samples/period; 10=16samples/period;

20=32samples/period; 40=64samples/period;
80=128samples/period

Resolution 1  0=8bit; 1=10bit
V1 coeff 2
V2 coeff 2
V3 coeff 2
A1 coeff 2
A2 coeff 2
A3 coeff 2
PT integer 2  the integer part of PT expressed in hexadecimal
PT decimal 2  the decimal part of PT * 65536, expressed in hexadec.
CT 2
Wiring 2
Trigger 2  0000=manual trigger

0011=SP1...0018=SP8 (set point trigger)
0021=DO1...0026=DO6 (digital output trigger)
0031=DI1...0034=DI4 (digital input trigger)

R80.9 WAVEFORM CAPTURE RECORDING DOWNLOAD - BLOCK (ENH)
Answer format:

<STX>00010030EEEDEEFCFCFC...<ETX><BCC>

0001 progressive number of the transmitted block
0030 total number of characters transmitted in this block

EEEDEEFCFCFC sub-block. According to the Captured channels byte and

the Resolution byte, the sub-block can contain more or
less data. The byte length of each sample depends on the
Resolution byte value in the header. Voltage and/or current
samples values are expressed in two’s complement binary
representation

• Ex1: V1 sample=$EE, V2 sample=$ED, V3 sample=$EE,

A1 sample=$FC, A2 sample=$FC, A3 sample=$FC 
6parameters, 8bits  Captured channels=00111111,
Resolution=0

• Ex2: V1 sample=$00EE, A1 sample=$00FC  2parameters,
10bits  Captured channels=00001001, Resolution=1

Data conversion:

If (data)>$7FFF, in case of 10 bits resolution•
if (data)>$7F, in case of 8 bits resolution•

data value is always negative; formula: $0 - $data = $data -> -data (DEC)

10 bits resolution

Vx sample fi nal (word)=[(Vx sample*Vxcoeff)/(2*65536)]/PT
Ax sample fi nal (word)=[(Ax sample*Axcoeff)*1.2/(2*65536*100)]*CT

8 bits resolution

Vx sample fi nal (byte)=16*[(Vx sample*Vxcoeff)/(2*65536)]/PT
Ax sample fi nal (byte)=16*[(Ax sample*Axcoeff)*1.2/(2*65536*100)]*CT

x = 1, 2, 3 phase of voltage and/or current
PT = PTinteger + (PTdecimal/65536)

Command Description

UBN310

UBN315

UBN3080



17

COMMANDS

ENGLISH

STANDARD Communication Protocol

R80.A WAVEFORM CAPTURE RECORDING DOWNLOAD - REPEAT LAST BLOCK

(ENH)

R80.B EVENT LOG RECORDING DOWNLOAD - FIRST DATA BLOCK (ENH)

R80.C EVENT LOG RECORDING DOWNLOAD - NEXT DATA BLOCK (ENH)

R80.D EVENT LOG RECORDING DOWNLOAD - REPEAT LAST DATA BLOCK

(ENH)

Answer format (R80.B, R80.C, R80.D):

<STX><blockindex><blocksize><eLOGcode><dateYY/MM/DD><timeHH/MM/

SS><eLOGvar><var percentage><eLOGcode><dateYY/MM/DD><timeHH/MM/
SS><eLOGvar><varpercentage>etc.<ETX><BCC>

Example:

<STX>000000180207D501180B2D0D00000000...<ETX><BCC>

0000 block index
0018 block size
02 eLOG code (see list below)
07D5 YY
01 MM
18 DD
0B HH
2D MM
0D SS
0000 eLOG var (see section 4.4)
0000 var percentage

Event LOG code

01=power ON
02=power OFF
03=digital output1 event ON
04=digital output1 event OFF
05=digital output2 event ON
06=digital output2 event OFF
07=digital output3 event ON
08=digital output3 event OFF
09=digital output4 event ON
0A=digital output4 event OFF
0B=digital output5 event ON
0C=digital output5 event OFF
0D=digital output6 event ON
0E=digital output6 event OFF
0F=set point1 event HIGH
10=set point1 event LOW
11=set point2 event HIGH
12=set point2 event LOW
13=set point3 event HIGH
14=set point3 event LOW
15=set point4 event HIGH
16=set point4 event LOW
17=set point5 event HIGH
18=set point5 event LOW
19=set point6 event HIGH
1A=set point6 event LOW
1B=set point7 event HIGH
1C=set point7 event LOW
1D=set point8 event HIGH
1E=set point8 event LOW

Command Description

UBN310

UBN315

UBN3080

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18

COMMANDS

ENGLISH

STANDARD Communication Protocol

1F=digital input1 event HIGH
20=digital input1 event LOW
21=digital input2 event HIGH
22=digital input2 event LOW
23=digital input3 event HIGH
24=digital input3 event LOW
25=digital input4 event HIGH
26=digital input4 event LOW

R9E WAVEFORM CAPTURE SETTINGS (ENH)
Answer format (see W9E):

<STX>XXX,Y,Z,TT<ETX><BCC>

R74.0 TIME OF USE COUNTERS - PREVIOUS MONTH (tariffs 1,2,3 values)

R74.1 TIME OF USE COUNTERS - THIS MONTH (tariffs 1,2,3 values)

R74.2 TIME OF USE COUNTERS - PREVIOUS DAY (tariffs 1,2,3 values)

R74.3 TIME OF USE COUNTERS - TODAY (tariffs 1,2,3 values)
Answer format (R74.0, R74.1, R74.2, R74.3):

<STX><TOU1-consumption energy><TOU1-generated energy><TOU2-consumption

energy><TOU2-generated energy><TOU3-consumption energy><TOU3-generated
energy><ETX><BCC>

Where: consumption energy  <+Wh +VAhI +VAhC +varhI +varhC>
generated energy  <-Wh -VAhI -VAhC -varhI -varhC>

R74.4 TIME OF USE COUNTERS - PREVIOUS MONTH (tariffs 4,5 values)

R74.5 TIME OF USE COUNTERS - THIS MONTH (tariffs 4,5 values)

R74.6 TIME OF USE COUNTERS - PREVIOUS DAY (tariffs 4,5 values)

R74.7 TIME OF USE COUNTERS - TODAY (tariffs 4,5 values)
Answer format (R74.4, R74.5, R74.6, R74.7):

<STX><TOU4-consumption energy><TOU4-generated energy><TOU5-consumption

energy><TOU5-generated energy><ETX><BCC>

Where: consumption energy  <+Wh +VAhI +VAhC +varhI +varhC>
generated energy  <-Wh -VAhI -VAhC -varhI -varhC>

RD1.xxx TIME OF USE (ENH) - SCHEDULE xxx
xxx=schedule number; 001÷120; 121=holiday schedule
Answer format:

If TOU is not set:•

<STX>0000<ETX><BCC>

If only start shedule date is set:•

<STX>MMDD<ETX><BCC>

If start schedule date and tariff changes are set:•

<STX>MMDDCCHHMMTT...CCHHMMTT...CCHHMMTT<ETX><BCC>
MMDD month, day: in decimal, ex. 23 november=1123
CC tariff changes number; 01÷15
HHMM hour, minutes: in decimal, ex. 17:38=1738
TT tariff: 00÷05

RD9 TIME OF USE - HOLIDAYS (ENH)
Answer format (see WD9):

<STX>A,X,MMDD..MMDD<ETX><BCC>

Command Description

UBN310

UBN315

UBN3080

















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19

COMMANDS

ENGLISH

STANDARD Communication Protocol

4.3 Programmable Parameters

(codes valid for write only)

W80 SERIAL COMMUNICATION (COM1)
Format: W80=Baud rate, Parity, Bit, Stop

Baud Rate 300, 600, 1200, 2400, 4800, 9600, 19200, 38400, 57600
Parity None, Even, Odd
Bit 8
Stop 1
Example: W80=38400,N,8,1

W81 SERIAL COMMUNICATION (COM2)
Format: see W80

W84 LOGICAL NUMBER
Format: W84=XX
Available values: $01 ... $FF
Example: W84=01

W87.1 PROTOCOL SWITCHING (COM1)
Format: W87.1=Baud rate, Parity, Bit, Stop

Baud Rate 300, 600, 1200, 2400, 4800, 9600, 19200, 38400, 57600
Parity None, Even, Odd
Bit 7, 8
Stop 1, 2
Example: W87.1=38400,N,8,1

W87.2 PROTOCOL SWITCHING (COM2)
Format: see W87.1

W89 DATE/TIME/DAY
Format: W89=YYMMDDHHMMSSd
d=day of the week: 1...7->Mon...Sun
Example: W89=0501211030005

W90 CT RATIO
Format: W90=XXXX
Available values: 0001...9999
Example: W90=0001

W92 PT RATIO
Format: W92=XXXX.YYY
Available values: 0001.000...9999.999
Example: W92=1234.567

WDA WIRING MODE
Format: WDA=XX
Available values: 01=1phase

02=1phase-3wires / 2CT (only 310)
03=3phase-3wires / 2CT
04=3phase-4wires / 3CT

WDB CURRENT INPUT FULLSCALE
Format: WDB=XX
Available values: 01=1 A

05=5 A
Example: WDB=01

Command Description

UBN310

UBN315

UBN3080

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20

COMMANDS

ENGLISH

STANDARD Communication Protocol

W95 MIN/AVG/MAX RECORDING SETUP
Format:

W95=VV1VV2VV3VV4VV5VV6VV7VV8,M,TT,W,YYMMDDHHMMSS(1),YYMMDDHHMM

SS(2)<ETX> <BCC>

VV1VV2..VV8 selected variable (see section 4.4)
M recording mode: 0=NONE; 1=FILL; 2=RING

TT integration time to calculate the DMD: 01, 05, 10, 15, 30,

60 min or 61 in case of external (Synchronization with
DMD calculation)

W start/stop: 0=NO; 1=YES
YYMMDDHHMMSS(1) start recording date
YYMMDDHHMMSS(2) stop recording date

Example:

W95=00000200300900A00B094096,1,60,0,040229125559,040229125559

W96 CLEAR RECORDINGS
Format: W96=X

Available values: 0=clear min/avg/max recordings
1=clear daily counter recordings
2=clear all recordings
3=clear waveform capture recording (only 315/3080 ENH)
4=clear event LOG recordings (ENH)
Example: W96=0

W98 DMD INTEGRATION TIME
Format: W98=XX

Available values: 01,05,10,15,30,60 minutes or 61 in case of external (Sync. with

DMD calculation)

Example: W98=01

W9B DISPLAY BACKLIGHT ON TIME
Format: W9B=XXX

Available values: 0...999
Example: W9B=001

W9C MEASUREMENT SYNCHRONIZATION
Format: W9C=X,YYYY

X synchro mode: 0=internal (fi xed); 1=external (auto)
YYYY fi xed measurement synchronization: 0500 (050.0 Hz)
Example: W9C=0,0500

W9E WAVEFORM CAPTURE SETUP (ENH)
Format: W9E=XXX,Y,Z,TT

XXX number of periods: 1..200
Y samples/period: 0=8 samples/period; 1=16 samples/period; 2=32 sam-

ples/period; 3=64 samples/period; 4=128 samples/period

Z bit resolution: 0=8 bit resolution; 1=10 bit resolution
TT trigger type: 00=manual; 11=SP1...18=SP8; 21=DO1...26=DO6;

31=DI1...34=DI4

WEF START WAVEFORM CAPTURE (ENH)

Command Description

UBN310

UBN315

UBN3080

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21

COMMANDS

ENGLISH

STANDARD Communication Protocol

W9F CLEAR COUNTERS & SET DEFAULT
Format: W9F=XXXXX
Available values: 43000=clear energy counters

53000=clear digital input counters *
75430=clear all counters
75000=clear time of use counters (only 315/3080 ENH)
80000=clear trends (only 315/3080 ENH)
65000=set default instrument parameters

WD1.xxx TIME OF USE - SCHEDULE SETUP (ENH)
xxx=schedule number: 001÷120; 121=holiday schedule

It is possible to set:

Only schedule date: WD1.001=MMDD•
Only a tariff change of the schedule: WD1.001=MMDDCCHHMMTT•
More tariff changes of the schedule: WD1.001=MMDDCCHHMMTT...CCHHMMTT•

It is not possible to set more than 8 tariff changes with a single command. Therefore,

to set all 15 tariff changes, it is necessary to send 2 commands.

Format: WD1.xxx=MMDDCCHHMMTT...CCHHMMTT...CCHHMMTT...CCHHMMTT...

CCHHMMTT...CCHHMMTT...CCHHMMTT...CCHHMMTT<ETX><BCC>

MMDD month, day: in decimal, ex. 23 november=1123
CC tariff changes number; 01÷15
HHMM hour, minutes: in decimal, ex. 17:38=1738
TT tariff: 00÷05
Example: WD1.001=0930010800050210000303120001041400020516000306180

0040720000508220005

WD9 TIME OF USE - HOLIDAYS SETUP (ENH)
Format: WD9.0=A, X, MMDD...MMDD - fi rst 10 holidays

WD9.1=A, X, MMDD...MMDD - last 10 holidays
A holidays ON/OFF: 0=OFF; 1=ON
X Sat&Sun Enable; 0=disable; 1=enable
MMDD holidays month and day
Example: WD9.0=1,1,0101010604250602071408151101120812251226

WD7 DMD CALCULATION MODE
Format: WD7=X
Available values: 0=fi xed

1=slide
2=COM
3=DI1
4=DI2
5=DI3
6=DI4

Example: WD7=1

WDF DMD CALCULATION SYNCHRONIZATION THROUGH COM

WD8 CLOCK FORMAT
Format: WD8=X,Y

X 0=YYMMDD; 1=MMDDYY; 2=DDMMYY
Y 0=24h; 1=12h (AM/PM)

Example: WD8=1,1

Command Description

UBN310

UBN315

UBN3080





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22

COMMANDS

ENGLISH

STANDARD Communication Protocol

WDE LANGUAGE
Format: WDE=XX
Available values: 00=English

01=Deutsch
02=Français
03=Italiano
04=Español

Example: WDE=00

W2F EVENT LOG RECORDING MODE (ENH)
Format: W2F=X
Available values: 0=none

1=fi ll
2=ring

Example: W2F=2

W21 SET POINT 1 (ENH)
Format: W21=XX,YYY.YY,ZZ,JJJ

XX associated variable (see section 4.4)
YYY.YY tripping value referring to the fullscale
ZZ hysteresis percentage value referring to the tripping value
JJJ delay time on threshold tripping (in seconds)

Example: W21=00,050.00,15,010

W22 SET POINT 2 (ENH)
Format: see W21

W23 SET POINT 3 (ENH)
Format: see W21

W24 SET POINT 4 (ENH)
Format: see W21

W25 SET POINT 5 (ENH)
Format: see W21

W26 SET POINT 6 (ENH)
Format: see W21

W27 SET POINT 7 (ENH)
Format: see W21

W28 SET POINT 8 (ENH)
Format: see W21

DIGITAL OUTPUT 1
WA0 PULSE
Format: WA0=XX,YYY.Y,ZZZ

XX associated variable (see section 4.4)
YYY.Y pulse coeffi cient (ex. Wh/pulse)
ZZZ pulse duration time (msec.)

Example: WA0=30,150.0,250

Command Description

UBN310

UBN315

UBN3080

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

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23

COMMANDS

ENGLISH

STANDARD Communication Protocol

WA1 THRESHOLD
Format: WA1=XX,Y,ZZZ.ZZ,JJ,KKK

XX associated variable (see section 4.4)
Y threshold mode
L=low threshold mode
H=high threshold mode

ZZZ.ZZ tripping value referring to the fullscale
JJ hysteresis percentage value referring to the tripping value
KKK delay time on threshold tripping
Example: WA1=20,H,050.00,15,030

DIGITAL OUTPUT 2
WB0 PULSE (see WA0)
WB1 THRESHOLD (see WA1)

DIGITAL OUTPUT 3 *
WA4 PULSE (see WA0)
WA5 THRESHOLD (see WA1)

DIGITAL OUTPUT 4 *
WB4 PULSE (see WA0)
WB5 THRESHOLD (see WA1)

DIGITAL OUTPUT 5 *
WA8 PULSE (see WA0)
WA9 THRESHOLD (see WA1)

DIGITAL OUTPUT 6 *
WB8 PULSE (see WA0)
WB9 THRESHOLD (see WA1)

WA2 DIGITAL INPUT 1 *
Format: WA2=X,YY.YY,ZZZZZ
X I=input identifi er
YY.YY tripping value referring to the fullscale
ZZZZZ 00000=none

00001=kWh
00002=kVAh
00003=kvarh
00004=MWh
00005=MVAh
00006=Mvarh
00007=GWh
00008=GVAh
00009=Gvarh
00010=m3
00011=I
00012=N,h’F8
00013=yd3
00014=ft3
00015=in3
00016=gal
00017=oz

Example: WA2=I,01.00,00001

Command Description

UBN310

UBN315

UBN3080

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24

COMMANDS

ENGLISH

STANDARD Communication Protocol

WB2 DIGITAL INPUT 2 *
Format: see WA2

WA6 DIGITAL INPUT 3 *
Format: see WA2

WB6 DIGITAL INPUT 4 *
Format: see WA2

WA3 ANALOG OUTPUT 1 *
Format: WA3=XX,Y,ZZZ.ZZ,JJJ.JJ
XX associated variable (see section 4.4)
Y 0=mono-directional output 0-20mA

4=mono-directional output 4-20mA. The output is linear from the mini-

mum limit value to the maximum limit value
A=bi-directional output 0-20mA (10mA=Val.0)
C=bi-directional output 4-20mA (12mA=Val.0). The output is linear from

the minimum limit value (maximum negative) to zero and from zero to
the maximum limit value

ZZZ.ZZ minimum limit value percentage referring to the fullscale or negative

maximum limit value in the case of bi-directional output (it is also pos­sible to use ZZ.ZZ format)

JJJ.JJ maximum limit value percentage referring to fullscale (it is also possible

to use JJ.JJ format)

Example: WA3=00,0,000.00,020.00

WB3 ANALOG OUTPUT 2 *
Format: see WA3

WA7 ANALOG OUTPUT 3 *
Format: see WA3

WB7 ANALOG OUTPUT 4 *
Format: see WA3

WCE CLEAR MIN/MAX AND MAXIMUM DEMAND VALUES
Format: WCE=XX
Available values: 00=clear all min/max values (ENH)

01=clear max WDMD and max VADMD
02=clear max ADMD

Example: WCE=00

Command Description

UBN310

UBN315

UBN3080

































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STANDARD Communication Protocol

4.4 Variables List

The code and the symbol, assigned to each variable, are described in the following list.

Code Description Symbol

000 System voltage VΣ
001 L-N voltage phase 1 V1
002 L-N voltage phase 2 V2
003 L-N voltage phase 3 V3
004 L-L voltage line 12 V12
005 L-L voltage line 23 V23
006 L-L voltage line 31 V31
094 Voltage unbalance (%) (ENH) Vub
008 System current AΣ
009 Phase 1 current A1
00A Phase 2 current A2
00B Phase 3 current A3
096 Phase 1 thermal current (ENH) AT1
097 Phase 2 thermal current (ENH) AT2
098 Phase 3 thermal current (ENH) AT3
095 Current unbalance (%) (ENH) Aub
00C Phase 1 current THD THDA1
00D Phase 2 current THD THDA2
00E Phase 3 current THD THDA3
00F Neutral current AN
010 System power factor PFΣ
011 Phase 1 power factor PF1
012 Phase 2 power factor PF2
013 Phase 3 power factor PF3
015 Phase 1 COSØ * COSØ1
016 Phase 2 COSØ * COSØ2
017 Phase 3 COSØ * COSØ3
018 System apparent power VAΣ
019 Phase 1 apparent power VA1
01A Phase 2 apparent power VA2
01B Phase 3 apparent power VA3
020 System active power WΣ
021 Phase 1 active power W1
022 Phase 2 active power W2
023 Phase 3 active power W3
028 System reactive power varΣ
029 Phase 1 reactive power var1
02A Phase 2 reactive power var2
02B Phase 3 reactive power var3
034 Line frequency F
036 Phase 1 voltage THD THDV1
037 Phase 2 voltage THD THDV2
038 Phase 3 voltage THD THDV3
039 System active power demand WDMD
03B Phase order RST
099 Phase 1 K-factor (ENH) K1
09A Phase 2 K-factor (ENH) K2
09B Phase 3 K-factor (ENH) K3

101 … 11F Harmonic (H1 … H31) L-N voltage phase 1 *
134 … 152 Harmonic (H1 … H31) L-N voltage phase 2 *
167 … 185 Harmonic (H1 … H31) L-N voltage phase 3 *
19A … 1B8 Harmonic (H1 … H31) phase 1 current *
1CD … 1EB Harmonic (H1 … H31) phase 2 current *
200 … 1B8 Harmonic (H1 … H31) phase 3 current *

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COMMANDS

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STANDARD Communication Protocol

101 … 132 Harmonic (H1 … H50) L-N voltage phase 1 (ENH)
134 … 165 Harmonic (H1 … H50) L-N voltage phase 2 (ENH)
167 … 198 Harmonic (H1 … H50) L-N voltage phase 3 (ENH)
19A … 1CB Harmonic (H1 … H50) phase 1 current (ENH)
1CD … 1FE Harmonic (H1 … H50) phase 2 current (ENH)
200 … 231 Harmonic (H1 … H50) phase 3 current (ENH)

0FF None variable selected

030 Imported active energy +Wh
031 Imported reactive inductive energy +varhI
033 Imported reactive capacitive energy +varhC
01C Imported apparent energy (only for standard instrument version) +VAh
090 Imported apparent inductive energy (ENH) +VAhI
092 Imported apparent capacitive energy (ENH) +VAhC
032 Exported active energy -Wh
02E Exported reactive inductive energy -varhI
02F Exported reactive capacitive energy -varhC
01D Exported apparent energy (only for standard instrument version) -VAh
091 Exported apparent inductive energy (ENH) -VAhI
093 Exported apparent capacitive energy (ENH) -VAhC

Variables code (e.g. 030=Imported active energy) should be used only with the 2 last digits (e.g. 30) in case of the
following commands: WA0, WA1, WB0, WB1, WA4, WA5, WB4, WB5, WA8, WA9, WB8, WB9, WA2, WB2, WA6, WB6,
WA3, WB3, WA7, WB7.

4.5 Error Messages

Nr Description

E000 COMMAND ACKNOWLEDGE (NO ERROR)

Reception of a correct command.

E011 ERROR COMMAND

Reception of an incorrect command.

E101 RECORDING DOWNLOAD ERROR1

Empty fi le.

E102 RECORDING DOWNLOAD ERROR2

End of fi le.

NOTE

A verifi cation error on BCC is not indicated; the reception of a complete message but with
incorrect BCC is completely ignored by the instrument.

Code Description Symbol

27

ASCII CHARACTERS TABLE

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STANDARD Communication Protocol

5. ASCII CHARACTERS TABLE

DEC HEX CHAR. DEC HEX CHAR. DEC HEX CHAR. DEC HEX CHAR.

DEC HEX CHAR. DEC HEX CHAR. DEC HEX CHAR. DEC HEX CHAR.

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ASCII CHARACTERS TABLE

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STANDARD Communication Protocol

DEC HEX CHAR. DEC HEX CHAR. DEC HEX CHAR. DEC HEX CHAR.

DEC HEX CHAR. DEC HEX CHAR. DEC HEX CHAR. DEC HEX CHAR.

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