Gossen MetraWatt U1601 Manuale utente

U1601, U1602, U1603

Summators – Energy Control System ECS 3-348-869-03

15/1.21

Operating Instructions

2Gossen Metrawatt GmbH

Device Overview

Contents Page

1 Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2 System Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

3 Instrument Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

3.1 Instrument Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

3.2 Channels / Calculations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

3.3 Inputs E1 ... E12 and E1 ... E6 respectively (analog / binary) . . . . . . . . . . . . . 8

3.4 Analog Outputs A1 and A2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

3.5 S0 Outputs S1 through S4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

3.6 Relay Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

3.7 Self Test. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

3.8 RS232 Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

3.9 ECS LAN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

3.10 LAN LED (LANL/LANR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

3.11 LON Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

3.12 LON LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

4 Measurement Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

4.1 Overview of Available Measurement Data. . . . . . . . . . . . . . . . . . . . . . . . . . . 14

4.2 Synchronizing-Interval Data Logger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Characteristics U1601 U1602 U1603

64 channels ✔✔✔

Analog inputs / S0 I1 ... I12 — I1 ... I6

Binary outputs S1 ... S4 — S1 ... S4

Analog outputs O1, O2, — O1, O2,

Relay outputs

Relay 1, relay 2, status Status Relay 1, relay 2, status

RS 232 COM1 / COM2 ✔ (in a single plug) ✔✔

LANL / LANR ✔✔ ✔

LON ✔✔ ✔

24 V auxiliary power ✔✔ ✔

Control panel ✔——

LON LED

page 13

LAN LED

page 13 ESC Key

Menu Key

Enter Key

Status LED

page 9

RS 232

Interface

page 9

Gossen Metrawatt GmbH 3

5 Operation (menu displays) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

5.1 Menu: Overview (main menu display) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

5.2 Menu 1: Display Total Energy, Power and Costs . . . . . . . . . . . . . . . . . . . . . 19

5.3 Menu 2: Display Interval Energy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

5.4 Menu 3: Display Maximum Values for Interval Energy . . . . . . . . . . . . . . . . . . 21

5.5 Menu 4: Display Analog Inputs and Outputs . . . . . . . . . . . . . . . . . . . . . . . . 22

5.6 In-Service Function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

5.7 Menu: Display Applications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

5.8 Menu 5: Display Status Menu (time, relays, errors, interfaces). . . . . . . . . . . . 26

6 Basic Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

6.1 Setup Parameters Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

6.2 Setup Selection Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

6.3 Station Parameters (IDs, intervals, tariffs, outputs, ... ) . . . . . . . . . . . . . . . . . 30

6.4 (Channel) Parameters (mode, name, units, displays, ... ) . . . . . . . . . . . . . . . . 33

6.5 RS232 Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

6.6 LON Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

6.7 ECS LAN Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

6.8 SETUP Sub-Menus (edit, erase, outputs, bootstrap loader, password). . . . . 40

6.9 Firmware Update . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

6.10 Master Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

6.11 Basic Software Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

7 Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

7.1 Terminal Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

7.2 Input and Output Configuration (DIP switches) . . . . . . . . . . . . . . . . . . . . . . . 50

7.3 Interface Pin Assignments, Connector Cable . . . . . . . . . . . . . . . . . . . . . . . . 50

8 Meter Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

9 Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

9.1 General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

9.2 Parameters Configuration and Data Visualization at a PC . . . . . . . . . . . . . . . 55

10 Characteristic Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

11 LON Bus System Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

11.1 Maximum Cable Lengths . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

11.2 Cable Type. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

11.3 Bus Termination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

12 Connecting LON Bus Compatible Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

12.1 Network Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

12.2 Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

12.3 Device Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

12.4 Reinstalling a LON Device. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70

12.5 Configuration at a PC with ECSwin Software . . . . . . . . . . . . . . . . . . . . . . . . 71

12.6 Replacing a LON Device. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

12.7 Additional LON Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

12.8 Channel Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

13 Functions Overviews . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

14 Index. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76

15 Maintenance, Repair, Product Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79

4Gossen Metrawatt GmbH

1 Applications

The Energy Control System (ECS) allows for unambiguous cost center accounting.

Electrical as well as non-electrical energy and its consumption can be recorded,

optimized and billed to individual cost centers.

The U1601, U1602 and U1603 summators are at the heart of the Energy Control

System (ECS) and enable the recording and billing of both analog and digital quantities.

ECS operating software revision level: V2.57

The current operating instructions covering the latest firmware update are available for download

on the internet at www.gossenmetrawatt.com.

LONis a registered trade mark of the Echelon Corporation.

2 System Description

•Analog signals from orifice plates, measuring transducers or other measuring

instruments are acquired, analyzed and stored together with meter pulses from energy

meters, flow meters and heat meters at the intelligent U1601 summator.

• Each summator can be connected to up to 12 energy meters with pulse output. Data

collected at the meter inputs are integrated and stored according to various criteria to

a semiconductor memory with battery back-up.

•64 channels are available for the generation of sums and/or differences based upon

meter values. Values from other summators which are connected to the ECS LAN can

be used to generate virtual channels as well. All of the stored measurement values

can be displayed at the summator.

• Stored values can be read out from the U1601 summator with a PC, or can be remote

queried with the help of a modem. A radio-controlled clock for correct time

synchronization or a printer for the generation of reports can be connected to the

second RS232 interface.

• Several summators can be linked to one another via the ECS LAN, a multi-master

compatible RS485 field bus, for applications which required the use of more than 12

inputs (analog/binary). The linking of up to 255 summators from 16xx series

instruments via the ECS LAN allows for the establishment of a powerful energy control

system, which is controlled and monitored with a PC.

• All of the instruments connected to the bus can be queried and programmed from any

desired summator thanks to the multi-master system structure. A limit value violation at

summator M can thus trigger a signal at summator N. Each bus user has access to all

data and functions throughout the entire system.

•LON is a new type of intelligent bus concept with allows controllers, sensors and

actuators to communicate with one another. In addition, up to 63 nodes can be

connected to a U1601 summator via the integrated LON network.

• Two freely programmable relays allow for the generation of messages or the triggering

of specific actions if certain criteria have been fulfilled.

• User generated programs can be installed to the summators through the use of the

system-specific programming language,Energy Control Language (ECL). The

summators can thus be adapted to customer-specific calculations, analyses,

monitoring and optimization independent of the energy control system.

•ECSwin PC software for configuring parameters at the summators, and for reading in

energy consumption data and displaying them in tabular and graphic form.

Gossen Metrawatt GmbH 5

3 Instrument Description

3.1 Instrument Overview

3.2 Channels / Calculations

64 software channels are available. The input type for each channel can be selected for

the basic configuration with the CMODE channel parameter (0 ... 4).

Cyclical Generation of Channel Registers

Due to the fact that many various energy data registers are made available to each

channel (33 registers without maximum values: Etot, EtotT1, EtotT2, Pmom, 10+1 times

Eday, 12+1 times Emon, 4+1 times Eyear), only the most important summations are

performed continuously, and less important summations are performed in accordance

with a rotating schedule. For example, Etot is calculated continuously, whereby Emon-

12 is determined less frequently (approximately every 30 to 90 seconds). Power values,

except for Pmom, are continuously calculated based upon energy values, and thus

need not be summated.

PC/Modem

Printer/Clock

Inputs

E1 ... E12

analog / S0

Binary Outputs

S1 ... S4

S0 Standard

Aux. Power, Uv

for external meter

Relay Outputs

Analog Outputs

A1, A2 (= K13,14)

Status Relay

LON MeterLAN L LAN R

412

Relay 1, Relay 2

to Summator Port Input

LCD

Display

LEDs

Com-Server

64 Channels

OFF

LON

Channel Kn

Meter

Analog Value

OFF

Energy

LON Calculation Energy

Calculation

Desired

Channel Power

Channels

6Gossen Metrawatt GmbH

Channel Names

A name can be assigned to each channel with a length of up to 8 characters. These

names allow for improved channel identification during data processing, as well as for

graphic representations. System-wide access to a given channel is also enabled through

the use of such names.

A system-wide search for a channel with the name “Motor5” is performed from

summator A, and total energy from this channel is graphically displayed (see also ECL

command: FINDER).

Channel Numbers

If inputs (E1 ... E12) are to be assigned to the channels, each input can only be assigned

to the channel which bears the same number, i.e.:

Virtual Channels

• Any unused channel can be utilized as a virtual channel for the generation of any

desired sums or differences which result from physical inputs or other virtual

channels. It makes no difference which summators within the ECS LAN the channels

have been assigned to!

• Unused physical channels can also be utilized as virtual channels, in which case even

the maximum value registers for the corresponding physical channel are made

available.

• The synchronizing-interval data logger can record data from virtual channels.

Differential Linking (ECL commands dVSUM and dVIRT)

As soon as they have been defined, incoming energy quantities (~ meter pulses) from

the source channels are continuously summed and the summed energy quantities are

fed to the virtual channel, “as if they had actually just been measured”. The virtual

channel is decoupled from the source channels and data can be manipulated as

desired.

Areas of application: logical coupling of input signals (as if the corresponding input

signals had been switched together to a single channel).

Example 1:

Channel 26 at summator D generates a cost center based upon channels 1 ... 5+8 from

summator B weighted with a factor of 0.7, and channel 4 from summator C weighted

with a factor of 0.3

Example 2:

Channel 10 is the difference between 1 ... 8 and total-sum channel 9

(sum of 1 ... 8 minus channel 9):

Inputs E / Outputs A Channels

E1 1

... ...

E12 12

A1 13

A2 14

...

<A> Etot Motor5

H1=’B:dVSUM 1..5+8 0.7, C:dVSUM 4 0.3, D:dVIRT 26=’

Gossen Metrawatt GmbH 7

Channel Parameters (chapter 6.4, page 33)

Numbers Range

In order to ensure greatest possible accuracy, all internal calculation operations are

performed with 64 bit floating decimal point numbers. This means that 15 (!) significant

decimal places are possible.

Switching the Channel Display On and Off

The On/Off function only determines whether or not a channel is visible while browsing

through channel data at the display, or during read-out with '*' (ECL command:

ONOFF). The function of the channel remains otherwise entirely unaffected.

Channel Start/Stop

The Start/Stop function is used to determine whether or not meter pulses are to be

accepted at a given input (ECL command: STARTSTOP).

• A virtual channel which has been generated by means of “differential linking” can be

influenced with the Start/Stop function in an analog fashion.

• Since the binary input status of a channel is not influenced, this function can be used,

for example, to avoid taking undesired binary data into consideration.

Energy Metering

Meter pulses filtered out in this fashion are integrated, per channel, into a temporary

meter. The meter values are converted into their corresponding energy values every 1 to

2 seconds, and are added to total energy registers. Pulses are converted to energy

values by means of the following formula:

Energy Calculation

where:

Power Calculation

Instantaneous power, PMOM, is determined based upon the interval between the

incoming pulses. All other power values are calculated from the corresponding energy

value, taking the corresponding time interval into consideration.

The calculation of power assumes the assignment of an energy unit of measure per hour

(kWh). The power factor must be adapted accordingly for other units of measure (e.g.

liters per minute) (ECL command: PFACTOR). The default value is 3600, and it would be

60 for the “liters per minute” example.

Formula for the calculation of power based upon energy E and duration dt:

P = E * Pfactor / dt

Only sensors which have been connected via the LON network are capable of

transmitting already calculated power and energy values to the summators.

H2=’dVSUM 1..8, dVSUM 9 -1, dVIRT 10=’

Energy kWh Pulses Imp

MeterCons t Imp

kWh

---------

tan

-------------------------------------------------- Uratio Iratio

 KFactor=

Iratio

Iprimary

Isecondary

-----------------------=

Uratio

Uprimary

Usecondary

------------------------=

8Gossen Metrawatt GmbH

3.3 Inputs E1 ... E12 and E1 ... E6 respectively (analog / binary)

Analog Inputs

For summator U1601 12 optically isolated analog inputs are available, E1 ... E12, for

summator U1603 6 optically isolated analog inputs are available, E1 ... E6. These can

be configured as voltage, current or binary inputs. See page 50 and page 33 for DIP

switch settings and appropriate software settings.

One metering channel, 1 ... 12, can be assigned to each of the inputs, E1 ... E12,

one metering channel, 1 ... 6, can be assigned to each of the inputs, E1 ... E6.

The applied analog input value may correspond to a measured power quantity.

The input ranges (20 mA, 5 mA, 10 V, S0) must be pre-selected with the DIP switches,

as well as the I/O RANGE parameter. Energy is matched to the various ranges, and

calculated and recorded as a channel quantity with the configurable ANAFAKTOR and

ANAOFFSET parameters.

Binary Meter Inputs

The 12 analog inputs, E1 ... E12, of

summator U1601, and the 6 analog inputs,

E1 ... E6, of summator U1603 respectively,

can also be used as binary inputs (in

accordance with the S0 standard).

Configuration is accomplished by means of

DIP switches and software (see page 50 and page 33).

A binary input recognizes two different levels, high level “1” and low level “0” (max. low

level adjustable with ECL command: LEVEL). Thus switching back and forth between

tariffs T1 and T2 can be performed with input 12. The synchronization pulse from the

electric utility can also be connected, for example, to input 11. Status can be queried via

software with the ECL command INPUT.

Debouncing Time and Trigger Edge

Debouncing time and the trigger edge can be configured individually for each of the

maximal 12 channels. Sampling time for all maximal 12 channels amounts to 5 ms.

• Debouncing time is adjustable from 10 ms to 2.55 s in 10 ms steps, ECL command:

PULSE

• High level trigger flank (1): Triggering occurs for change from low level to high level,

ECL command: EDGE

• Low level trigger edge (0): Triggering occurs for change from high level to low level.

If an input is used as a binary input, the selected debouncing time applies to this

operating mode as well. For example, if debouncing time has been set to 1 s, only those

signals are processed which remain stable at either high or low level for at least 1

second. Only debounced signals appear at the input status display at the control panel

as well.

3.4 Analog Outputs A1 and A2

Two configurable analog outputs can be driven with the ECL command ANA. The

output quantity (20 mA or 10 V range) must be selected with the DIP switches and the I/

O RANGE parameter (see page 50 and page 37).

Input channels can be recorded, scaled and read out continuously as transduced

quantities with the help of a background program (see also ECL command: ANA 13,

ANA14).

Gossen Metrawatt GmbH 9

3.5 S0 Outputs S1 through S4

Just like the relay outputs, four freely programmable S0 outputs allow for the forwarding

of messages when certain conditions have been fulfilled. Selectable voltage is limited to

50 V. Additionally, these outputs can be used as floating pulse outputs for the

transmission of meter readings to remote locations with the help of ECL background

programs (see ECL command: S0REL 1 ... 4).

3.6 Relay Outputs

Two freely programmable relays (changeover contacts) allow for the generation of a

message or the triggering of an action, if certain criteria have been fulfilled. For example,

a relay output can be activated if the mean power value within the synchronization

interval exceeds a certain value. The current relay status is displayed at the LCD under

summator status. A ?

indicates that the contact is closed and active. Please observe the

characteristic values in the appendix.

Relay Names

A channel name can be assigned to each of the relays and may have a length of up to 8

characters. This name allows for improved relay identification during data processing, as

well as for graphic representations. System-wide access to a given relay is also enabled

through the use of such names:

A system wide search for a relay with the name “Horn” is performed from summator A,

and this relay is activated (see also ECL command: FINDER).

3.7 Self Test

As long as the electronics are functional and no system error has been detected, the

status LED and the status relay are on. If the instrument electronics malfunction, the

relay is released and the LED goes out. A horn which can be driven with the status

relay’s break contact can be used to indicate a malfunction.

The current relay status is displayed in the status window (see chapter 5.8, page 26).

Functional testing can be expanded by means of appropriate programming (ECL

command: STATCHECK, see detailed information in online help: ? STATCHECK). For

example, the output can be deactivated (error condition) as soon as the 24 V power

supply drops to below 16 V, or if the condition of the lithium battery no longer allows for

reliable data storage.

3.8 RS232 Interface

Communications with a host computer (PC), a terminal, a modem or a printer is made

possible via the RS232 serial interface.

Access to All Measurement Data

A PC which has been connected to the RS232 interface has full access to all stored

system measurement values. ECSwin parameters configuring software, which runs on

the PC, manages all ECS data and allows for tabular data analysis.

Port Configuration

The RS232 port is configured in the DTE format (data terminal equipment), and signals

are conducted by a 9-pin D-SUB plug. The DTE configuration is compatible with

standard PC and terminal configurations. Wiring of the connector cable is described in

chapter 7.3, page 50.

<A> REL Horn=1

10 Gossen Metrawatt GmbH

3.9 ECS LAN

Several summators can be linked to one another via a multi-master compatible RS485

field bus (ECS LAN) for applications which require the use of more than 64 channels.

The connection can be established by means of a 2-wire cable using either bus or a line

topology. The maximum length per segment is1200 meters. Distances of several

kilometers between 2 summators can be accommodated with fiber optic transmission

and

4-wire technology.

A maximum of 255 summators can be connected to the ECS LAN. This means that a

maximum distance of approximately 300 km can be covered without additional

boosters.

Multi-Master System Architecture

The most significant advantage of the multi-master system architecture is the fact that

each of the bus users has full access to all of the data and functions encompassed by

the overall system. It is thus unnecessary to assign the designation of bus master a

single summator.

General Notes Concerning the ECS LAN

•Theconnector technology for the individual LAN segments can be freely selected and

combined.

• The longest cable length is determined by the transmission speed in accordance with

RS485. The ECS LAN normally runs at 62.5 KBaud, which corresponds to a

maximum cable length of 1.2 km, (see also chapter 6.7, page 39).

• The transmission cable must be terminated at both ends (and only at the ends) with

matching resistors. The matching resistors are integrated and can be switched on or off

at the control panel. Correct functioning of the 2-wire connection can only be secured

through the use of these integrated matching resistors. No external resistors may be

used!

•Theloop resistance of the transmission cable may not exceed 100 Ohms in 2-wire

operation.

•Upto16 summators can be connected to a single bus segment. If the matching

resistors have been correctly installed (see above), if spur line lengths have been

minimized and if the overall loop resistance of the transmission cable is less than 100

Ohms, up to 32 summators can be operated within a single segment.

•User statistics can be queried via the control panel (instrument status).

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