Gossen MetraWatt ENERGYCONTROL SU1604 User manual

ENERGYCONTROL SU1604
Summator 3-447-004-03
4/12.22
Operating Instructions

2Gossen Metrawatt GmbH
Highlights
• New modular concept
•Software is downward compatible to U1600/1/2/3 summators
•Energy Control Language (ECL) for programming analyses, monitoring and optimization
U1604 basic module:
•64 processing channels for calculating energy, power and costs. Physical inputs
(up to 64) or LON meters can be allocated as desired.
•Increased processing power by a factor of 10 to 15 as compared with U1601/2/3
summators
•LON interface for 64 LON devices
•One RS 232 interface (max. 921 kBaud)
•One RS 485 interface (max. 921 kBaud, half-duplex)
•Two ECS LAN interfaces (max. 375 kBaud)
•Ethernet interface (100 MBit/s) with ECL access via TCP/IP
Further optional components:
• U1614 power pack module with status relay
•U1624 SO input module with twelve S0-compatible meter inputs (up to 6 modules,
max. 64 S0 inputs)
Scope of delivery, SU1604
1 U1604 basic module
1 Split toroidal core
2 ME 22.5 T-bus mounting rail connector
1 Condensed operating instructions
Scope of delivery, SU1614
1 U1614 power pack module
2 ME 17.5 T-bus mounting rail connector
1 Condensed operating instructions
Scope of delivery, SU1624
1 U1624 pulse recording module
1 ME 22.5 T-bus mounting rail connector
1 Condensed operating instructions

Gossen Metrawatt GmbH 3
Table of Contents Page
1 Safety Instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2 Applications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.1 Intended Use / Use for Intended Purpose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.2 Use for Other than Intended Purpose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.3 Liability and Guarantee . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.4 Opening the Instrument / Repairs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.1 Summator Comparison . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
4 Device Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4.1 U1604 Device Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4.2 Channels/Calculations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4.3 Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4.4 S0 Outputs S1 … S2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4.5 Self-Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.6 RS 232/485 Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.7 Ethernet Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.8 ECS LAN. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.9 LAN LED (LANL/LANR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
4.10 LON Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
4.11 LON LED. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
5 Measurement Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
5.1 Overview of Available Measurement Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
5.2 Synchronizing Interval Measurement Data List. . . . . . . . . . . . . . . . . . . . . . . . . 19
6 Operation (display menus). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
6.1 Menu: Overview (main display menu). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
6.2 Menu 1: Display Total Energy, Power, Costs . . . . . . . . . . . . . . . . . . . . . . . . . 22
6.3 Menu 2: Display Interval Energy. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
6.4 Menu 3: Display Maximum Interval Energy Values . . . . . . . . . . . . . . . . . . . . . . 24
6.5 Menu 4: Display Analog Inputs/Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
6.6 In-Service Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
6.7 Menu: Display Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
6.8 Menu 5: Display Status Menu (time, relay, errors, interfaces) . . . . . . . . . . . . . . 29
7 Basic Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
7.1 Overview of Setup Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
7.2 Setup Selection Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
7.3 Summator Parameters (IDs, intervals, tariffs, outputs …) . . . . . . . . . . . . . . . . . 33
7.4 RS 232/485 Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
7.5 LON Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
7.6 ECS LAN Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
7.7 SETUP Submenus (Edit, Delete, Outputs, Bootstrap Loader, Password) . . . . . 44
7.8 Firmware Update. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
7.9 COM Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
7.10 Ethernet Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
7.11 Relays and S0 Relays (S0-OUT). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
7.12 Basic Software Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

4Gossen Metrawatt GmbH
8 Terminal Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55
8.1 U1614 Power Pack Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55
8.2 U1604 Basic Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56
8.3 U1624-S0IN12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57
8.4 TBUS Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .58
9 Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .61
9.1 General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .61
9.2 Parameters Configuration and Data Visualization at a PC . . . . . . . . . . . . . . . . .62
9.3 ECL Extensions and Notes on Compatibility. . . . . . . . . . . . . . . . . . . . . . . . . . .63
9.4 INDEX Command Bug for U1601/2/3 with Use of UTC . . . . . . . . . . . . . . . . . .64
10 Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .65
11 LON Bus System Structure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .68
11.1 Maximum Cable Lengths . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .69
11.2 Cable Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .69
11.3 Bus Termination. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .69
12 Connecting LON Bus Compatible Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .70
12.1 Network Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .70
12.2 Functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .70
12.3 Device Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .71
12.4 Reinstalling a LON Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .77
12.5 Configuration at a PC with ECSwin Software . . . . . . . . . . . . . . . . . . . . . . . . . .78
12.6 Replacing a LON Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .78
12.7 Additional LON Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .79
12.8 Channel Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .79
13 Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .80
14 Contact, Support and Service. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .81
15 Returns and Environmentally Sound Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . .82
16 Index. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .82

Gossen Metrawatt GmbH 5
1 Safety Instructions
Observe this documentation, in particular all included safety information, in order to pro-
tect yourself and others from injury, and to prevent damage to the instrument.
• Carefully and completely read and adhere to these operating instructions, as well as
the instrument’s condensed operating instructions.
The respective documents can be found at http://www.gossenmetrawatt.com.
• Retain these documents for future reference.
• Observe the five safety rules in accordance with DIN VDE 0105-100:2015-10,
VDE 0105-100:2015-10, Operation of electrical installations – Part 100: General
requirements
(1. Shut down entirely. 2. Secure against restart. 3. Assure absence of voltage at all
poles. 4. Ground and short circuit. 5. Cover neighboring live components, or make
them inaccessible.).
• Observe and comply with all safety regulations which are applicable for your work envi-
ronment.
• Wear suitable and appropriate personal protective equipment (PPE) whenever working
with the instrument.
• Use the instrument in undamaged condition only.
Inspect the instrument before use. Pay particular attention to damage. Damaged com-
ponents must be replaced immediately.
• If the instrument or its accessories don’t function flawlessly, permanently remove the
instrument/accessories from operation and secure them against inadvertent use.
• Do not use the instrument and its accessories after long periods of storage under unfa-
vorable conditions (e.g. humidity, dust or extreme temperature).
• Only use the instrument and its accessories within the limits of the specified technical
data and conditions (ambient conditions, IP protection code, measuring category etc.).
• A suitable surge protector must be used in order to ensure that the installation site
meets the requirements specified for overvoltage category II.
• The terminals of the U1614 power pack module may only be disconnected or con-
nected in the current/voltage-free state!
• During operation when auxiliary power is active, the U1614 power pack module may
not be mounted to or removed from the TBUS!
• During operation when auxiliary power is active, neither the U1614 basic module nor
any other S0 modules may be mounted to or removed from the TBUS.
• Opening the housing of the U1614 power pack module during operation is impermissi-
ble!
If replacement of the fuse should become necessary, for which the housing must be
opened, all terminals must first be disconnected!
• The TBUS may only be used to connect ECS components – any combination with non-system
devices with similar backplane connection is impermissible.

6Gossen Metrawatt GmbH
2 Applications
Please read this important information!
2.1 Intended Use / Use for Intended Purpose
The Energy Control System (ECS) is used to ensure transparent cost center accounting. All
electrical and non-electrical energy media can be logged, optimized and billed to the re-
spective cost centers.
As a central device within the Energy Control System (ECS), the U1604 summator makes
it possible to log and bill analog and digital quantities.
These operating instructions describe ECS operating software as of V3.00.
Current operating instructions for the latest firmware update are available for download at
www.gossenmetrawatt.com.
LONis a registered trade mark of the Echelon Corporation.
2.2 Use for Other than Intended Purpose
Using the instrument for any purposes other than those described in the condensed op-
erating instructions or these instrument operating instructions is contrary to use for in-
tended purpose.
2.3 Liability and Guarantee
Gossen Metrawatt GmbH assumes no liability for property damage, personal injury or
consequential damage resulting from improper or incorrect use of the product, in partic-
ular due to failure to observe the product documentation. Furthermore, all guarantee
claims are rendered null and void in such cases.
Nor does Gossen Metrawatt GmbH assume any liability for data loss.
2.4 Opening the Instrument / Repairs
The instrument may only be opened by authorized, trained personnel in order to ensure
flawless, safe operation and to assure that the guarantee isn’t rendered null and void.
Even original replacement parts may only be installed by authorized, trained personnel.
Unauthorized modification of the instrument is prohibited.
If it can be ascertained that the instrument has been opened by unauthorized personnel,
no guarantee claims can be honored by the manufacturer with regard to personal safety,
measuring accuracy, compliance with applicable safety measures or any consequential
damages.

Gossen Metrawatt GmbH 7
3Introduction
The new modular concept of the U1604 permits space-saving setup of an ECS Energy
Control System in accordance with actual requirements.
Thanks to strict software compatibility with the earlier U1601/2/3 summators and down-
ward compatibility to the U1600 summator, previously used systems can be easily re-
placed or expanded.
An instrument can be set up using the following modules:
•U1604 basic module with the following interfaces:
• 1 ea. RS 232 (COM-1), 1 ea. RS 485 (COM-2), ECS LAN left + right, LON, 2 ea. S0
relay output
•U1614 power pack module with status relay for supplying power to all components via
the TBUS and an additional 24 V DC output (max. 5 W) – overall output power
amounts to 20 W
•U1624 S0IN12 input module with 12 S0-compatible inputs (up to 6 modules, max. 64 S0
inputs)
Connector Terminals
All signals are fed to the instrument via screw terminals which can be unplugged (3, 4 or
5-pole). This assures trouble-free replacement in the event that servicing is required.
TBUS
The individual components are connected to each other via the so-called TBUS. The
TBUS is laid out as a 5 conductor system and distributes 24 V DC supply power and sig-
nals from the TBUS communications interface (RS-485) to all components. The fifth con-
ductor is used to indicate device status.
One or two corresponding TBUS adapters are included with each U1604 component.
These TBUS adapters (width: 17.5 or 22.5 mm) are snapped into the DIN top-hat rail in
the fully assembled state before mounting the devices.
Please note: The U1614 power pack module with an overall width of 35 mm requires two
17.5 mm TBUS adapters, and all other devices require one or two of the 22.5 mm TBUS
adapters.
3.1 Summator Comparison
The following table provides an overview of the hardware features included with the vari-
ous ECS summators:
Hardware Feature U1604 U1601/2/3 U1600
Modular concept with TBUS ✔——
COM-1 (RS 232)
Max. 921 kBd Max. 115 kBd Max. 38.4 kBd
COM-2 (RS 232) —✔1/✔/✔
Max. 115 kBd
(✔) 2
Max. 9600 bd
COM-2 (RS 485) Max. 921 kBd ——
ECS LAN (L+R)
Max. 375 kBd Max. 375 kBd Max. 125 kBd
LON ✔✔—

8Gossen Metrawatt GmbH
1COM-2 only available for U1601 with splitter cable
2
COM-2 for U1600 with splitter cable only and only usable for DCF radio controlled clock module or character output
(printer)
3Analog inputs can be used as S0 inputs (U1601 + U1603)
4As opposed to SRAM, MRAM does not required a backup battery for data retention
5U1600 without/with memory expansion
6Accuracy of 10 ppm RTC gains (+) or loses (-) no more than roughly 0.8 s per day
The following table provides an overview of the software features included with the vari-
ous ECS summators:
7U1600 without/with memory expansion
8UDM – user definable menus: for the implementation of extensive user-specific menus and applications (as of
August 2017)
TCP/IP (10/100 Mbit/s)
COM-4
COM-5 Port 5004 Port 5005 ——
S0 compatible meter inputs
with U1624 module (12 S0 ea.) 0 Max. 64 0 3
—24 —
Analog inputs (20 mA, 10 V, S0) 0 12 / 0 / 6 —
Analog outputs — 2 / 0 / 2 —
Status relay (250 V AC, 3-pole) ✔
To U1614 ✔✔
Relay (250 V AC, 3-pole) — 2 / 0 / 2 4
S0 relay (semiconductor relay) 2 4 / 0 / 4 —
RAM
Type 4MB
MRAM 41MB
SRAM
128 kB /
512 kB
5
SRAM
Flash memory
Type —2MB Flash
512kB
EPROM
RTC real-time clock (with backup
battery)
Accuracy
6
5  5 ppm
(0 … +10 ppm)
20 ppm 10 ppm
Software Feature U1604 U1601/2/3 U1600
ECS operating system ECS V3.xx ECS V2.xx ECS V1.xx
Number of energy channels 64 (1 ... 64) 64 (1 ... 64) 32 (1 ... 32)
Background programs
P programs
Q programs
A variable (double)
B variant (double)
32 (H 0...31)
32 (P 0...31)
32 (Q 0...31)
64 (A 0...63)
64 (B 0...63)
32 (H 0...31)
32 (P 0...31)
32 (Q 0...31)
64 (A 0...63)
64 (B 0...63)
32 (H 0...31)
32 (P 0...31)
—
32 (A 0...31)
—
EINT measurement data list
Recording duration, 32 channels
Recording duration, 64 channels
768 KB
120.5 days
62.1 days
512 KB
80.3 days
41.4 days
64 KB / 448 KB 7
10.0 / 70.3 days
5.2 / 36.2 days
UDM – user definable menus 8✔——
Hardware Feature U1604 U1601/2/3 U1600

Gossen Metrawatt GmbH 9
4 Device Description
4.1 U1604 Device Overview
4.2 Channels/Calculations
64 software channels are available. In the basic configuration, the type of input for these
channels can be specified via the CMODE channel parameters (0 4).
Cyclical Generation of all Channel Registers
Due to the fact that each channel has numerous energy data registers (33 registers with-
out maximum values: Etot, EtotT1, EtotT2, Pmom, 10+1 times Eday, 12+1 times Emon,
4+1 times Eyear), only the most important summations are conducted continuously, and
the less important ones in accordance with a rotating schedule.
For example, Etot is ascertained continuously but Emon-12 only infrequently (roughly
every 30 90 seconds). Power values other than Pmom are always calculated from
energy values and thus don’t have to be totaled up.
U1614 Power
Pack Module
U1604 Ba-
sic Module
U1624 S0 Module
EM228x/EM238x
with LON Bus
(feature W1)
T-BUS
OFF
En
LON
Channel Kn
Meter
S0
Analog Value
OFF
Energy
LON Calculation Energy
Calculation
Any
Channel Power
2
0
3
4
1
Channels

10 Gossen Metrawatt GmbH
Channel Names
A name can be assigned to each channel which can have a length of up to 8 characters.
The channel can be better identified for data processing and display purposes with the
help of this name. The name also makes it possible to access a specific channel per pro-
gram system-wide.
From summator A: a channel with the name “Motor5” is searched for system-wide and
this channel’s total energy is displayed (see also ECL command: FINDER).
Virtual Channels
• Each unused channel is available as a virtual channel, in order to generate any desired
sums or differences from physical inputs or other virtual channels. It doesn’t matter
which summators the channels are assigned to within the ECS LAN system!
• Unused physical channels can also be used as virtual channels, in which case even
the maximum value registers of the corresponding physical channel are available.
• The synchronizing-interval measurement data list can record data from virtual chan-
nels.
Differential Coupling (ECL commands dVSUM and dVIRT)
As of the moment of definition, incoming energy quanta (~ meter pulses) from the source
channels are continuously summed up, and the summed up energy quanta are fed to
the virtual channel as if they had actually just been measured. The virtual channel is thus
decoupled from the source channels and data can be changed as desired.
Application: logical coupling of the input signals (as if the corresponding input signals
were connected to a single meter channel).
Example 1
Channel 26 at summator D: generates a cost center consisting of channels 1 5 + 8 of
summator B: weighted at 0.7 and channel 4 of summator C: weighted at 0.3
Example 2
Channel 10 is equal to the balance of channels 1 8 and the total sum of channel 9
(sum 1 8 minus channel 9)
Numeric Range
In order to achieve greatest possible accuracy, all internal calculation operations are con-
ducted with 64-bit floating point numbers. As a result, 15 (!) significant decimal places
are available.
<A> Etot Motor5
H 1 = ‘B:DVSUM 1 .. 5+8 0.7, C:VSUM 4 0.3, D:VI
H2= ’dVSUM 1..8, dVSUM 9 -1, dVIRT 10=’

Gossen Metrawatt GmbH 11
Switching the Channel Display On/Off
The on/off function only determines whether or not a channel is present at the display
when scrolling through channel data or in a read-out with “*” (ECL command: ONOFF).
Otherwise, the channel’s function is not influenced in any way.
Start/Stop Channel
The acceptance of an input’s meter pulses is controlled with the start/stop function (ECL
command: STARTSTOP).
• A channel generated with “differential coupling” can be influenced by means of an ana-
log signal with the start/stop function.
• Due to the fact that a channel’s binary input status is not influenced, this function can
be used, for example, to avoid undesired counting of binary information.
Energy Metering
Meter pulses filtered in this way are integrated per channel in a temporary meter. Roughly
once every 1 to 2 seconds, the meter values are converted to the corresponding energy
values and the total energy registers are counted in as well. Pulses are converted to en-
ergy values in accordance with the following formula:
Energy Calculation
where:
Electrical Power Billing
Instantaneous power is determined on the basis of the intervals between the incoming
pulses. All other power values are calculated from the corresponding energy value in
consideration of the respective time interval.
By default, the calculation of power is based on an energy unit of measure per hour
(kWh). In the case of other frames of reference (e.g. liters per minute,) the P factor must
be correspondingly adjusted (ECL command: PFACTOR). The standard value is 3600,
and for the liters per minute example it would be 60.
Formula for calculating power from energy E and timespan dt:
P = E * Pfactor / dt
Only sensors which are connected via the LON network deliver already calculated power
and energy values to the summators.
Energy kWh Pulses Imp
Meter Constant Imp
kWh
---------
------------------------------------------------- Uratio Iratio
 Kfactor=
Iratio
Iprimary
Isecondary
-----------------------=
Uratio
Uprimary
Usecondary
------------------------=

12 Gossen Metrawatt GmbH
4.3 Inputs
Binary Meter Inputs
Twelve S0 inputs are available per S0 module (U1624).
SO IN 1 … 12
– Six 4-pole connector terminals for two S0 inputs each.
– S0 input characteristics:
Input voltage = max. 30 V, input resistance = 5.1 kΩ, bipolar, electrically isolated
– Due to the fact that the utilized optocouplers are bipolar, connection polarity is irrele-
vant.
Debounce Time and Counting Edge
Debounce time and the counting edge (trigger edge) can be separately configured for
each of the 12 inputs. Sampling time over all of the up to 12 channels amounts to 1 ms.
• Debounce time is adjustable from 0 ms to 20 s in 1 ms steps, ECL command: PULSE
• “+” (1) counting edge: Counting when change occurs from level 0 to level 1, ECL com-
mand: EDGE
• “-” (0) counting edge: Counting when change occurs from level 1 to level 0
If an input is used as a binary input, the selected debounce time applies to this operating
mode as well. For example, if a debounce time of 1 s has been selected, only signals
which remain stable at the “1” or “0” level for at least 1 second are further processed.
The input status display at the control panel shows only the debounced signal levels.
4.4 S0 Outputs S1 … S2
The two freely programmable S0 outputs make it possible to transmit messages in the
event that certain conditions occur. Switchable voltage is limited to 50 V in this respect.
Furthermore, the outputs can also be used as floating pulse outputs for remote transmis-
sion of meter values with the help of ECL background programs (see ECL command
S0REL 1 … 2).
S0 IN 1 SO IN 2
(a) | (b) (a) | (b)
SO IN 3 SO IN 4
(a) | (b) (a) | (b)
SO IN 5 SO IN 6
(a) | (b) (a) | (b)
U1624
S0 IN 7 SO IN 8
(a) I (b) (a) I (b)
SO IN 9 SO IN 10
(a) I (b) (a) I (b)
SO IN 11 SO IN12
(a) I (b) (a) I (b)

Gossen Metrawatt GmbH 13
4.5 Self-Test
As long as the electronics are functional and no system errors have been detected, the
status LED and the status relay are on. If an error has occurred at the device electronics,
the relay drops out and the LED goes out. A horn, which can be controlled with the sta-
tus relay’s NC contact, is then able to indicate the error status.
The current relay status is displayed in the status window (section 6.8 on page 29).
The function test can be expanded by means of appropriate programming (ECL com-
mand: STATCHECK, further information in the online help via ? STATCHECK). For exam-
ple, the output can already be deactivated (error status) when available 24 V supply
power drops to below 16 V, or when the status of the lithium battery no longer assures
reliable data retention.
4.6 RS 232/485 Port
Communication with the host PC, radio controlled clock, terminal, COM server, modem
or printer is made possible by the RS 232 serial port.
Access to All Measurement Data
A PC connected to the RS 232 port has full access to all of the system’s stored mea-
sured values. ECSwin parameters configuration software running at a PC manages all
ECS data and permits tabular data evaluation.
Connection Configuration
The RS 232 port is laid out with the DTE (data terminal equipment) configuration and the
signals are available at a 9-pole D-sub plug connector. This DTE configuration corre-
sponds to the same one that is commonly used for PCs and terminals. Refer to section 8
on page 55 concerning connector cable wiring.
4.7 Ethernet Port
In addition to the COM-1 and COM-2 ports, ECL inputs via TCP/IP are available as well
(see section 7.10 on page 49).
4.8 ECS LAN
For applications which necessitate the use of more than 64 channels, several summators
can be connected to each other via a multi-master-compatible RS 485 fieldbus (ECS
LAN). Linking can be conducted by means of a 2-wire cable with bus or line structure.
Maximum length per segment is 1200 m. Distances of several kilometers between 2
summators can be spanned with fiber-optic transmission lines based on 4-wire technol-
ogy.
Up to 255 summators can be connected to the ECS LAN. And thus a maximum distance
of roughly 300 km can be spanned without an additional booster.
Multi-Master System Architecture
The essential advantage of multi-master architecture results from the fact that each of
the connected bus users has full access to the overall system’s data and functions. This
means that it’s not necessary to select a single summator as the bus master.
General Information Concerning ECS LAN
•Theconnection technology for the individual LAN segments is freely selectable and can
be mixed as desired.
•Transmission speed is dictated by the maximum cable length in accordance with
RS 485. The ECS LAN normally runs at 62.5 kBaud, and the maximum cable length is
thus 1.2 km (see also section 7.6 on page 43).
• The transmission cable must be terminated at both ends (but nowhere else) with termi-
nating resistors. The terminating resistors are integrated and can be activated and deac-

14 Gossen Metrawatt GmbH
tivated via the control panel. Correct functioning of the 2-wire connection can only be
assured with integrated terminating resistors.
No external resistors may be connected!
•Loop resistance of the transmission cable with 2-wire technology may not exceed
100 Ω.
•Upto16 summators can be connected to a bus segment. If the terminating resistors are
correctly connected (see above), branch lines have been minimized and the loop resis-
tance of the transmission cable is less than 100 Ω, up to 32 summators can be oper-
ated at a single segment.
•User statistics can be retrieved via the control panel (device status).
Bus Left, Bus Right
Each summator provides 2 complete ECS LAN ports. They’re designated LAN L and
LAN R. Each of these ports can be operated with either 2-wire or 4-wire transmission
technology (RS 485).
2-Wire
A bus system within which several summators are connected to a common bus line
must be set up with 2-wire technology.
4-Wire
4-wire technology is used where especially long transmission paths have to be spanned
or where boosters are required, in which case only line-to-line connection is possible.
Connection Lengths (LAN bus)
If several summators (up to 16) are arranged in relatively close proximity to each other
(total bus length of max. 100 m), bus connection with a twisted pair cable is recom-
mended. Line-to-line connection with a twisted four-wire cable should not be set up until
the distance between 2 summators is greater than 400 m (max. 1200 m).

Gossen Metrawatt GmbH 15
Assignment of ECS LAN Connections
User Directory
Directory of ECS LAN Users
Each summator automatically prepares an internal directory (ECL command: DIR) of all
interconnected ECS LAN users (insofar as unequivocal IDs have been assigned through-
out the entire system). Each summator indicates its presence system-wide every 3 sec-
onds with a so-called broadcast message, so that all summators which receive this mes-
sage can correspondingly update their internal directories. If the message is not
transmitted for a period of more than 20 seconds, the respective summator is removed
from the internal directories.
Unequivocal Identification
An unequivocal summator ID must be assigned to each summator within the ECS LAN
system. 255 different, freely selectable IDs are possible.
An ID has the following format: A, A1 .. A9, B, B1 ... B9, .. , Z, Z1 .. Z4
System-Wide Access to Measurement Data
Example: You would like to retrieve total energy for channel 1 at summator D1 from sum-
mator A:
ECS LAN Network Example
LANLLANR
+I/O -I/O +I -I +I/O -I/O +I -I
U1604
LANLLANR
+I/
O-I/O+I -I +I/ O-I/O+I -I
U1604
2-Wire Bus
2-Wire Line-to-Line
4-Wire Line-to-Line
2-Wire Line-to-Line
Suitable for fiber-optic transmission lines
and RS 485 boosters
LANLLANR
+I/
O-I/O+I -I +I/ O-I/O+I -I
U1604
LANLLANR
+I/
O-I/O+I -I +I/ O-I/O+I -I
U1604
LANLLANR
+I/
O-I/O+I -I +I/ O-I/O+I -I
U1604
LANLLANR
+I/
O-I/O+I -I +I/ O-I/O+I -I
U1604
<A> D1:Etot 1

16 Gossen Metrawatt GmbH
4.9 LAN LED (LANL/LANR)
Two LEDs, one for bus left and the other for bus right, indicate error-free operation of the
ECS LAN:
• If no ECS LAN users are connected, the LEDs don’t light up.
• If one or more users are connected to the respective bus segment, the LED lights up.
• If two or more users have the same ID, the corresponding LAN LEDs blink at the users
with the same ID. Exception: If the summators with the same ID are connected to the
same LAN segment, no unequivocal error message is generated. For this reason,
always compare the number of summators with the total shown in the user statistics
when installing devices (control panel: device status).
• If the internal terminating resistor is not activated during bus operation, the affected
LAN LED blinks.
4.10 LON Connection
LON is an intelligent bus concept which makes it possible for controllers, sensors and
actuators to “talk” to each other. Quick and inexpensive wiring is achieved by means of
intelligent decentralization. All of the nodes (users) are equipped with a neuron chip and
communicate with each other via the LON Talk protocol. Data is transmitted via a stan-
dardized, floating, twisted pair cable which can be wired in bus, ring or star topology as
desired (free topology!). The electrically isolating FTT10 transceiver used to this end is re-
verse polarity protected and transmits data at 78 kbps. Up to 63 nodes can thus be ad-
ditionally connected to a U1604 summator via the integrated LON network. Energy val-
ues from the LON meters can be freely assigned to channels K1 to K64 via differential
coupling.
4.11 LON LED
LON LED off All LON channels deactivated (Haupttext, page 36)
Blinking LON LED Error in communication with LON users
LON LED on LON bus OK

Gossen Metrawatt GmbH 17
5 Measurement Data
5.1 Overview of Available Measurement Data
The following measurement data are available for each meter input and each virtual
channel:
Energy (cumulative as of a specified starting point)
Energy (cumulative for specified time periods)
* Interval value depending upon memory depth
Maximum Values from the Synchronizing Interval Measurement Data (with date and time)
Costs (cumulative as of a specified starting point)
Power (mean values for specified time periods)
ETot Total energy regardless of tariff
ETotT1 Total energy for tariff T1
ETotT2 Total energy for tariff T2
ETotT1+T2 Total energy for tariffs T1 and T2
EInt EInt-1 … EInt-xx Cumulative energy for the current and
the last xx * intervals (measurement data list)
EDay EDay-1 … EDay-10 Cumulative energy for the current
and the last 10 days
EMon EMon-1 … EMon-12 Cumulative energy for the current
and the last 12 months
EYear EYear-1 … EYear-4 Cumulative energy for the current
and the last 4 years
EMax EMax-1 … EMax-xx The xx * highest values
EMaxDay EMaxDay-1 … EMaxDay-10 Maximum energy for the current
and the last 10 days
EMaxMon EMaxMon-1 … EMaxMon-12 Maximum energy for the current
and the last 12 months
EMaxYear EMaxYear-1 … EMaxYear-4 Maximum energy for the current
and the last 4 years
CostT1 Costs for tariff T1
CostT2 Costs for tariff T2
CostT1+T2 Costs for tariffs T1 and T2
Pmom Instantaneous power between the
last 2 meter pulses
PInt PInt-1 … PInt-xx Power for the current and
the last xx * intervals (measurement data list)

18 Gossen Metrawatt GmbH
Maximum values from the synchronizing-interval measurement data (with date and time)
Summary of Available Measurement Data per Channel
Relationship Between Recording Duration and Number of Channels
of the Synchronizing-Interval Measurement Data (measurement data list, format 0 3):
PDay PDay-1 … PDay-10 Mean power value for the current
and the last 10 days
PMon PMon-1 … PMon-12 Mean power value for the current
and the last 12 months
PYear PYear-1 … PYear-4 Mean power value for the current
and the last 4 years
PMax PMax-1 … PMax-10 The 10 highest values for all measuring in-
tervals
PMaxDay PMaxDay-1 PMaxDay-10 Maximum power value for the current
and the last 10 days
PMaxMon PMaxMon-1 … PMaxMon-12 Maximum power value for the current
and the last 12 months
PMaxYear PMaxYear-1 … PMYear-4 Maximum power value for the current
and the last 4 years
Energy
Values Features Maximum Energy Values
Maximum
Power Values Costs
Etot Pmom
EtotT1 CostT1
EtotT2 CostT2
EtotT1T2 CostT1T2
Eint Pint Emax Pmax
EDay PDay EmaxDay PmaxDay
EMon PMon EmaxMon PmaxMon
EYear PYear EmaxYear PmaxYear
682
409
227
120 120,5 81 70 62
0
100
200
300
400
500
600
700
800
2 8 16 32 40 48 56 64
S
p
e
i
c
h
e
r
d
a
u
e
r
i
n
T
a
g
e
n
b
e
i
I
n
t
e
r
v
a
l
l
=
1
5
M
i
n
Number of Channels
Recording Duration in Days with a 15 Minute Interval

Gossen Metrawatt GmbH 19
5.2 Synchronizing Interval Measurement Data List
The energy values measured during a specific interval can be saved to a measurement
data list. This interval (duration: 10 s ... 999 hrs., default: 15 minutes) is either derived
from system time or the interval limit is determined by the edge of the meter pulse (de-
fault: channel 11). Energy measured during the interval (EINT) is entered to the list along
with date and time. The mean power value for the interval (PINT) is calculated from EINT
and the duration of the corresponding interval.
Formatting the Measurement Data List
Attention!
!
The contents of the measurement data list are deleted during formatting.
The number of entries in the measurement data list depends on the number of channels.
The measurement data list can thus be formatted according to the desired number of
channels. Formatting is only possible via an interpreter. The resolution of the data range
is determined at the same time (ECL command: FORMAT).
Specifying the Number of Entries
The format command reserves space within system memory for the selected channels.
In this way, the possible number of entries (records) is specified, but not the recording
duration which depends entirely on interval time.
Example: Only channels 1 through 4, channel 17 and channels 21 through 23 will be re-
corded to the measurement data list.
If the format command is invoked without parameters, status information is read out to
the measurement data list. In particular how many entries can be recorded in the mea-
surement data list is shown here.
<A> FORMAT = 1…4 + 17 + 21 …23
<A> format
Format (0): 8 channels, 26,214 entries (= 273 days with an interval of 15 minutes)
Channels: 1;2;3;4;17;21;22;23
Reading Out the Measurement Data List
The data saved to the measurement data list can be read out together with date and
time via the serial port by means of ECL command EINT. The following example shows
the read-out of all measurement data from channels 1 through 5 in ASCII database for-
mat:
<A> Eint/## 1..5 * **
16.04.93;17:45:00;1;0.5;0.75;0.99;1.36
16.04.93;18:00:00;1.01;0.1;0.76;0.80;0.83
16.04.93;18:15:00;0.99;0.48;0.75;1.02;1.28
<A>FORMAT = 1..4+17+21..23
…

20 Gossen Metrawatt GmbH
Retrieving a Specific Entry
The ECL command INDEX makes it possible to read out data as of a specific date. The
following example (in plain text read-out) shows the value from the measurement data list
for channel 1 on 16 April 1993 at 6:15 p.m.:
<A> Index 16.04.93 18h15, Eint/ 1 .
16.04.93 18:15:00 : Eint-863 (01:Motor7) = 0.99 kWh
Memory Structure of the Measurement Data List
The measurement data list is a ring buffer of fixed size which is correspondingly format-
ted. It’s accessed by means of an index number. Index 0 always makes reference to the
most up-to-date, current interval. Index 1 makes reference to the last interval and index 2
to the next to last etc. The ECL command INDEX converts a timestamp into the corre-
sponding index number.
Ring Buffer
When memory capacity has been exhausted, the oldest entry (with the highest index
number) is deleted in favor of the new entry. Index 1 is thus assigned to the interval which
has just been concluded, and the index numbers of all previous entries are increased by
1.
Measurement Data List Value Range
Limitation of Resolution due to Data Reduction
All of the summator’s data registers have an internal width of 8 bytes (64-bit floating
point). However, this has to be converted to a data format with a width of 2 bytes for the
data list (as of Eint-1), for which overall recording duration is directly dependent on avail-
able memory capacity (which is associated with reduced accuracy). The fact that only
energy values are saved (and not power values because these are calculated) results in
the following limitation of the numeric range with standard “0” formatting:
Data range encoding: (0: standard. Resolution specified in [ ])
0 : 0…+/-0.8191[0.0001]…+/-81.91[0.01]…+/-8191[1]…+/-819100[100]
1 : 0…+/-8,191[0.001]…+/-81.91[0.01]…+/-819.1[0.1]…+/-8191[1]
2 : 0…+/-16383[1]……+/-163830[10]
3 : 0……+32767[1]………+327670[10]
4 : 0..+/-99999999 [8 decimal places, smallest place: 1E-6]
If the number is > 99999999, the leading places are omitted.
1234567890 --> 34567890 Omission of the first 2 places
12345678.9 --> 12345679 8. Place is 5/4 rounded
1234567.8 --> 1234567.8 No limitation
12.345678 --> 12.345678 No limitation
12.3456789 --> 12.345679 8. Place is 5/4 rounded
1.23456789 --> 1.234568 Only 6 places after the decimal (see below)
Notes
– Encoding types 0, 1, 2 and 3 use two bytes per entry, but encoding type 4 uses four
bytes per entry and memory duration is thus cut in half.
– Encoding type 4 is only available as of V2.46, and interval data with type 4 encoding
cannot be read out from summators with older firmware versions!
– With encoding type 4 the smallest resolution is 1E-7, and with faster read-out using
ext.'#' resolution is 1E-6 (the 6th place after the decimal is 5/4 rounded if required).