MARCOM GW-DLMS-485-ELSA15 User manual

U SER’S M ANUAL
Gateway DLMS-MODBUS for ELSTER A1500
with RS485
P/N: GW-DLMS-485-ELSA15
Edition 2.0
MARCOM SRL
Phone [phone]
Email: [e-mail]
Via Mezzacampagna 52 (int. 29)
www.marcomweb.it

Revision Sheet
User’s Manual GW-DLMS-485-LG Page i
Revision Sheet
Release
No. Date Revision Description
Rev. 0 10/05/14 User’s Manual Template and Checklist
Rev. 1 10/06/16 Conversion to new format
Rev. 2 30/01/17 New HomeDLMS page

User’s Manual GW-DLMS-485-ELSA15 Page ii
USER'S MANUAL
TABLE OF CONTENTS
Page #
1.0 GENERAL INFORMATION ....................................................................................................3
1.1 System Overview...................................................................................................................3
1.2 Features.................................................................................................................................4
1.2.1 Connections ...........................................................................................................................................4
1.2.2 Digital Input connection.........................................................................................................................4
1.2.3 Serial port connections...........................................................................................................................5
2.0 CONFIGURATION AND MODBUS MAP...............................................................................6
2.1 Web Visualization.................................................................................................................6
2.2 Gateway Settings...................................................................................................................7
2.3 Modbus Mapping Area.........................................................................................................9
3.0 COMMUNICATION ERRORS...............................................................................................11
3.1 Type of error.......................................................................................................................11
4.0 MECHANICAL FEATURES..................................................................................................12

2.0 Configuration and Modbus map
User’s Manual GW-DLMS-485-ELSA15 Page 3
1.0 GENERAL INFORMATION
1.1 System Overview
DLMS (Device Language Message Specification) Protocol is used in meters field and specifically in
electric Energy meter to readout consumption and other values. The reference standard is EC 62056.
This standard defines services which permit to read objects, OBIS defined. Inside these objects are
mapped running meter values using standard profiles.
By Gateway DLMS-MODBUS is possible to read DLMS energy meter’s data using MODBUS RTU or
MODBUS TCP protocol. The gateway is completely transparent to DLMS protocol, so user must know
only Modbus protocol.
This Gateway version reads data from up to four counters through the RS485 port and provides value
to two RS232 port MODBUS RTU slave and on an Ethernet port Modbus TCP Server (up to 3 client
connections).

2.0 Configuration and Modbus map
User’s Manual GW-DLMS-485-ELSA15 Page 4
1.2 Features
1.2.1 Connections
Gateway has following communication ports:
•2 x Serial RS232 port to read energy meter’s data by master Modbus RTU
•1 x Serial RS485 port to connect up to four energy meter
•1 x Ethernet port to read Energy meter’s data by client Modbus TCP
•1 screw connector to supply gateway 10-30 VDC (min. 2 W)
•Front Signal LED for communication diagnostic
•2 x Digital Input (*)
•2 x Digital Output (*)
(*) Their status is mapped in Modbus registers.
1.2.2 Digital Input connection
The schema of two digital input/output connection is:

2.0 Configuration and Modbus map
User’s Manual GW-DLMS-485-ELSA15 Page 5
1.2.3 Serial port connections
The schema of serial port connection is:

2.0 Configuration and Modbus map
User’s Manual GW-DLMS-485-ELSA15 Page 6
2.0 CONFIGURATION AND MODBUS MAP
2.1 Web Visualization
To view the web pages containing the data read from the counter you need to connect to the network
using the Ethernet RJ45 port available on the gateway. By a web browser, just type the default
address 192.168.0.122.
In case of connection failure ensure that you have on your network card address on a subnet
192.168.0.X.
This brings us to the main screen of the Gateway with the values common to all Meter

2.0 Configuration and Modbus map
User’s Manual GW-DLMS-485-ELSA15 Page 7
From this page, through the links at the top of the page, you can browse web pages that contain the
data for the single Meter or go on the configuration pages of the Gateway (Home PLC).
It’s possible to change baudrate of the port connected to meter from Serial port baudrate selection
in case meter works with speed different from 9600 that usually is standard.
Time between readouts can be set from 10 to 3600 seconds.
String debug is useful to understand the communication with meters. With GATEWAY REBOOT
button you can force the gateway to reboot. The confirmation of the changes is recorded using the
Submit button.
You can also change the energy meter’s serial number connected to the Gateway. This step is
required to enable communication between Gateway and the meter.
2.2 Gateway Settings
To change the gateway settings, such as IP address, you need access to the configuration pages
through the appropriate link (System) in the header of web pages that contain the data read from the
counters.
This brings us to the home screen of the device configuration and clicking on Network Setup, you can
change the network settings of the device.
Credentials to login and modify parameters are: Username = Admin, Password = Admin.
Changes in Hardware Setup and in Network Setup are applied to the gateway after a power reboot.

2.0 Configuration and Modbus map
User’s Manual GW-DLMS-485-ELSA15 Page 8
While going on hardware setup, you can change:
- RS232 serial port communication settings; "COM 2" port changes don’t serve, because they are
forced by the program-specific settings
- MODBUS node number, to communicate with the MODBUS RTU and MODBUS TCP

2.0 Configuration and Modbus map
User’s Manual GW-DLMS-485-ELSA15 Page 9
2.3 Modbus Mapping Area
The data read from the meters are placed in the Holding Register area.
A copy of the values is also present in the 4x20000 holding register area.
Refresh time of the values is approximately: Time between readouts * N, where N is the number of
energy meters connected to gateway and configured with a serial number different from zero in
HomeDLMS.
Modbus addresses in the table are base 1; depending on used Modbus master, sometimes is
required to swap words to read data correctly.
OBIS
INDEX METER 1
METER 2 METER 3 METER 4
DATA
TYPE OBIS TYPE NOTES
- 4x40000 UINT DI_00 Digital Input 00
- 4x40001 UINT DI_01 Digital Input 01
- 4x40002 UINT DO_00 Digital Output 00
- 4x40003 UINT DO_01 Digital Output 01
- 4x40004 4x40006 4x40008 4x40010 UDINT SERIAL
Energy meter's serial code to start communciation
- 4x40014 FLOAT ERROR
Error number from gateway
0 4x40016 4x40216 4x40416 4x40616 DINT 0.9.1 Time
1 4x40018 4X40218 4x40418 4x40618 DINT 0.9.2 Date
2 4x40020 4x40220 4x40420 4x40620 DINT F.F Error code
3 4x40022 4x40222 4x40422 4x40622 DINT F.F.1 Error code
4 4x40024 4x40224 4x40424 4x40624 DINT F.F.2 Error code
5 4x40026 4x40226 4x40426 4x40626 DINT F.F.3 Error code
6 4x40028 4x40228 4x40428 4x40628 FLOAT C.1.0
7 4x40030 4x40230 4x40430 4x40630 FLOAT 0.2.1
8 4x40032 4x40232 4x40432 4x40632 FLOAT C.3
9 4x40034 4x40234 4x40434 4x40634 FLOAT C.4
10 4x40036 4x40236 4x40436 4x40636 FLOAT C.5
11 4x40038 4x40238 4x40438 4x40638 FLOAT 1.8.0 Sum Li Active Energy+ (QI+QIV)
12 4x40040 4x40240 4x40440 4x40640 FLOAT 1.8.0* Sum Li Active Energy+ (QI+QIV) - prev. period
13 4x40042 4x40242 4x40442 4x40642 FLOAT 1.6.1 Max Active Power - Import - Tariff 1 (kW)
14 4x40044 4x40244 4x40444 4x40644 FLOAT 1.6.1* Max Active Power - Import - Tariff 1 (kW) - previous period
15 4x40046 4x40246 4x40446 4x40646 FLOAT 1.2.1 Max Cumulative Active Power - Import - Tariff 1 (kW)
16 4x40048 4x40248 4x40448 4x40648 FLOAT 1.2.1* Max Cumulative Active Power - Import - Tariff 1 (kW) - prev. period
17 4x40050 4x40250 4x40450 4x40650 FLOAT 5.8.0 Sum Li Reactive Energy QI
18 4x40052 4x40252 4x40452 4x40652 FLOAT 5.8.0* Sum Li Reactive Energy QI - previous period
19 4x40054 4x40254 4x40454 4x40654 FLOAT 8.8.0 Sum Li Reactive Energy QIV
20 4x40056 4x40256 4x40456 4x40656 FLOAT 8.8.0* Sum Li Reactive Energy QIV - previous period
21 4x40058 4x40258 4x40458 4x40658 FLOAT 2.8.0 Sum Li Active Energy- (QII+QIII)
22 4x40060 4x40260 4x40460 4x40660 FLOAT 2.8.0* Sum Li Active Energy- (QII+QIII) - previous period
23 4x40062 4x40262 4x40462 4x40662 FLOAT 2.6.1 Max Active Power - Export - Tariff 1 (kW)
24 4x40064 4x40264 4x40464 4x40664 FLOAT 2.6.1* Max Active Power - Export - Tariff 1 (kW) - prev. period
25 4x40066 4x40266 4x40466 4x40666 FLOAT 2.2.1 Max Cumulative Active Power - Export - Tariff 1 (kW)
26 4x40068 4x40268 4x40468 4x40668 FLOAT 2.2.1* Max Cumulative Active Power - Export - Tariff 1 (kW) - prev. period
27 4x40070 4x40270 4x40470 4x40670 FLOAT 7.8.0 Sum Li Reactive Energy QIII