Wigersma & Sikkema UNICOM 300 User manual

Installation and user manual (type N511)
Battery operated UNICOM 300

Installation and user manual UNICOM 300 N511
DDN5001GHEN/10-2022/Rev.B3 2
All rights reserved.
Copyright © 2022 Wigersma & Sikkema B.V.
All the figures and descriptions in this installation and operating manual have been compiled only after
careful checking. Despite this, however, the possibility of errors cannot be completely eliminated. Therefore,
no guarantee can be given for completeness or for the content. Also, the manual cannot be taken as giving
assurance regarding product characteristics. Furthermore, characteristics are also described that are only
available as options.
The right is reserved to make changes in the course of technical development. We would be very grateful
for suggestions for improvement and notification of any errors, etc.
With regards to extended product liability the data and material characteristics given should only
be taken as guide values and must always be individually checked and corrected where
applicable. This particularly applies where safety aspects must be taken into account.
Further support can be obtained from the branch or representative responsible for your area. The address
is printed on the back of this manual or simply enquire Wigersma & Sikkema B.V.
Passing this manual to third parties and its duplication, in full or in part, are only allowed with written
permission from Wigersma & Sikkema B.V.
The guarantee becomes invalid if the product described here is not handled properly, repaired or modified
by unauthorized persons or if replacement parts are used which are not genuine parts from Wigersma &
Sikkema B.V.
Preface
This manual provides important information about the use of the UNIGAS 300. Please read this
manual carefully.
Various remarks and warnings in this manual are marked with symbols. Read these carefully and
take measures were necessary.
The symbols used have the following meaning:
REMARK Suggestions and recommendations to make tasks easier.
NOTE A note draws user's attention to potential problems.
WARNING
If the procedure is not carried out correctly, a dangerous situation may develop, or
data or settings may be lost.
ESD
Electrostatic discharges (ESD) can cause damage to internal electrical
components if you do not take precautions. ESD is caused by static electricity
and the damage caused is usually permanent.
The guarantee becomes invalid if the product described here is not handled properly,
repaired or modified by unauthorized persons or if replacement parts are used which are
not genuine parts from Wigersma & Sikkema B.V.

Installation and user manual UNICOM 300 N511
DDN5001GHEN/10-2022/Rev.B3 3
Table of contents
Introduction....................................................................................................................4
1.1 UNICOM 300 general information ...................................................................................................4
1.1.1 Communication:........................................................................................................................ 4
1.1.2 Power supply: ........................................................................................................................... 4
1.2 Explosion safety instructions (Ex) ...................................................................................................4
2 Functions and data structure.................................................................................5
2.1 UNICOM 300 Functions ..................................................................................................................5
3 Installation ...............................................................................................................5
3.1 Mounting..........................................................................................................................................5
3.2 Front UNICOM 300..........................................................................................................................6
3.3 Connections.....................................................................................................................................7
3.4 Inside lid UNICOM 300....................................................................................................................8
3.5 Front view inside UNICOM 300.......................................................................................................9
4 SIM-card .................................................................................................................10
4.1 SIM-card placement ......................................................................................................................10
5 Into service ............................................................................................................11
5.1 Activation and registry ...................................................................................................................11
5.2 Device init function ........................................................................................................................11
5.3 Adaptation of use: data logger <-> transparent modem................................................................11
5.4 Out of service ................................................................................................................................11
6 Activation of the modem, TCP and NTP services............................................... 12
6.1 Activation of the modem................................................................................................................12
6.2 Activation of TCP services ............................................................................................................12
6.3 Activation of NTP services ............................................................................................................12
7 Function Check .....................................................................................................13
7.1 System status check UNICOM 300...............................................................................................13
7.2 System status check UNICOM 300...............................................................................................13
8 Configuration.........................................................................................................14
8.1 Gas meters with encoder ..............................................................................................................14
8.1.1 Initialization encoder............................................................................................................... 14
8.1.2 Manual encoder initialization .................................................................................................. 14
8.1.3 Readout of gas meter data ..................................................................................................... 14
8.1.4 Readout of encoder counters ................................................................................................. 14
8.2 Gas meters with a pulse................................................................................................................15
8.3 Transparent modem (Electronic volume converter type UNIGAS) ...............................................15
8.4 Deactivating the data logger..........................................................................................................15
9 Battery packs.........................................................................................................16
9.1 Battery lifespan..............................................................................................................................16
9.2 Battery replacement ......................................................................................................................16
10 External antennas .................................................................................................17
11 Software .................................................................................................................17
12 Counters and registers .........................................................................................18
12.1 UNICOM 300 .................................................................................................................................18
12.2 UNICOM 300 datalogger...............................................................................................................22
Appendix 1: Schematic display of the functionalities..............................................29
Appendix 2: Schematic display of the data structure .............................................. 30
Appendix 3: Technical specification..........................................................................31
Appendix 4: Serial connections UNIGAS converters ...............................................35

Installation and user manual UNICOM 300 N511
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Introduction
Battery-powered UNICOM 300 is a 2G/4G modem or data logger equipped with a GSM CSD/GPRS/LTE
Cat. 1 modem or GPRS/LTE Cat. M1 modem. The modem used can be found on the type label (Cat 1 or
Cat M1), see also chapter 4.2. Further specifications of both modems can be found in Appendix 3 of this
manual.
The inputs are equipped with EX barriers so that UNICOM 300 may be used with equipment that is
placed in a zone 0 with a potentially explosive atmosphere.
Two microprocessors provide several functions including pulse registration, readout of an encoder
counter, processing and storage of data (data logging), communication of this data via 2G/4G, timer
(scheduler) for switching the 2G/4G modem on and off and creating and sending logged data in an FTP
message.
UNICOM 300 is equipped with inputs for both Encoder and two pulse contacts and a serial connection for
communication with UNIGAS 300.
1.1 UNICOM 300 general information
1.1.1 Communication:
UNICOM 300 can communicate in the following ways:
• through GSM data (CSD, only Cat. 1 modem);
• through a TCP connection over GPRS/LTE Cat. (M)1;
• by sending FTP files. One FTP server can be set up where the FTP files are to be sent to;
• synchronizing clock (date / time) with an NTP server.
1.1.2 Power supply:
UNICOM 300 is battery powered. UNICOM 300 detects the presence of 1 or 2 battery packs and will
adjust several relevant functions.
UNICOM 300 is equipped with 2 internal schedulers, which are only active with battery power. The
schedulers support recall windows and call window shortening for GSM data and TCP connections. The
window shortening can optionally be switched off. This may be necessary if several parties want to read
the UNICOM 300 within a window.
1.2 Explosion safety instructions (Ex)
The safety instructions and declaration of conformity are included in a separate document that must be
supplied with every UNICOM 300.
See the DDN5800CVML EU Declaration of Conformity and Safety instructions UNICOM 300 N511 for the
Dutch / English document.

Installation and user manual UNICOM 300 N511
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2 Functions and data structure
2.1 UNICOM 300 Functions
UNICOM 300 supports basic functions for the registry of counter values of a connected gas meter:
1. Two pulse inputs
2. Encoder (NAMUR)
3. Two pulse outputs
4. One serial input for UNIGAS 300
UNICOM 300 can count two pulses in the first two counters, readout an encoder in a third counter and log
these into an interval logger.
UNICOM 300 can transmit the incoming pulses or encoder counter position to two pulse outputs.
UNICOM 300 can connect to UNIGAS 300 for serial communication.
Pulse input two can also be used as an alarm input. When an alarm is detected, a status message will be
registered.
The pulse outputs can be configured as alarm outputs, see also "Settings for pulse outputs", p. 25, OBIS
C.93.2 and C.93.3.
In Appendix 1 the functions are shown schematically and in Appendix 2 the data structure is
schematically shown for the UNICOM 300.
3 Installation
The housing of UNICOM 300 has a protection class IP65 in accordance with EN60529. UNICOM 300
may be placed in the open air.
First read Explosion safety instructions (Ex) of document DDN5800CVML EU Declaration of
Conformity and Safety instructions UNICOM 300 N511 before proceeding.
Depending on the function and the configuration of UNICOM 300, the inputs are already configured from
factory and it is possible that the corresponding cable (s) is (are) mounted.
3.1 Mounting
See assembly instructions DDN5002MHML for installation/mounting possibilities and installation
instructions.
The instruction can be downloaded from www.wigersma-sikkema.com
To install the mounting brackets for mounting on a gas meter or on the wall UNICOM 300 does not need
to be opened.

Installation and user manual UNICOM 300 N511
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3.2 Front UNICOM 300
Figure 1: front view UNICOM 300
(1) Communication port for reading and configuring UNICOM 300 on location.
This communication port is suitable for an infrared communication head in combination with the
software program UNITOOL.
(2) Opening the housing.
Turn the two-cylinder head screws until the screw comes loose (anti-loss screw). Then open the
housing on the right side. It is possible that the sealing will stick, making the housing more difficult to
open.
Closing of the housing must be done with caution when the UNICOM 300
is hanging upright. Make sure that the lid does not rest on the hinge when
closing.
(3) Breather opening for pressure equalization between UNICOM 300 and ambient atmosphere.
Behind the breather opening a membrane is placed that prevents ingress of moisture.
Take care not to damage the membrane. The membrane must not be covered. See
also figure 1, point 3.

Installation and user manual UNICOM 300 N511
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3.3 Connections
UNICOM 300 has three cable glands for cables.
Figure 2: connections UNICOM 300
Output Terminal
number
Name Meaning
Pulse 11 Pulse out 2 connection for pulse output 2
10 GND Ground for pulse out cable
9 Pulse out 1 connection for pulse output 1
Table 1: Connections outputs
Ingang Terminal
number
Name Meaning Wigersma & Sikkema
cable color coding
Serial 8 REQ Serial data to
UNIGAS EVCD
White
7 GND/SHIELD Ground/shield data cable Black / Green
6 DATA Serial data from
UNIGAS EVCD
Brown
Pulse 5 GND/SHIELD Combined cable ground and shield
for pulse cable
Black / Green
4 PULSE 2 connection for pulse input 2 White
3 PULSE 1 connection for pulse input 1 Brown
Encoder 2 NAMUR - /
GND
Connection for Encoder -
1
NAMUR + Connection for Encoder
-
Table 2: connections inputs
To ensure a good connection between the wires and the terminals, it is important to ensure that
the clamp block is fully open (about 10 revolutions) before the wire is placed and the clamp is
closed.
A different color coding for the serial wire connection may apply for UNIGAS (see Appendix 4).
Unused cable glands
must be sealed with
the supplied sealing caps.
See table 1
Zie tab
le
2

Installation and user manual UNICOM 300 N511
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3.4 Inside lid UNICOM 300
Figure 3: inside lid UNICOM 300
Switch Switch
operation
Function
optical head detection - Optical head placed;
Status LEDs and optical head detection are activated.
SW1
(MODEM function)
For at least 4
seconds
Modem is turned on; 30 minutes service window is opened. If
modem is on, it is switched off and on again. Status LED’s are
activated during the service window.
To start the device INIT function, switch SW1 must remain
pressed until the INIT LED blinks once every 4 seconds. After
that, SW1 can be released, and the initialization will be carried
out further. See also 5.2.
SW1
(MODEM function)
For 1 second NOTE! Functionality available from firmware version 11.0.21.
Optical head and status LEDs are activated for 30 minutes.
Optical head detection will not function. This makes it possible
to use an optical head other than those of Wigersma &
Sikkema.
SW3
(MODEM function)
For at least 4
seconds
Restore the battery consumption counter and counters of the
communication time and connected to network time
Status LED INIT will
go on for 10 seconds.
SW1 & SW3
(MODEM function)
For at least 4
seconds
Stock lock activation
After activating stock lock, the status LED will start for 10
seconds. This is independent of state SW
1
/
SW2.
Table 3: function switches (Modem)

Installation and user manual UNICOM 300 N511
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3.5 Front view inside UNICOM 300
Figure 4: front view inside UNICOM 300
Switch Switch
operation
Function
SW4
(LOGGER function)
Manual Encoder
initialization
Manual initialization of encoder readout
The status of the initialization is shown through the
Encoder status LED.
SW5
(LOGGER function)
Programming
Switch
Security of defined parameters through local physical
operation of the switch.
(SW5 can be sealed on request. A seal can also be placed
for access to the circuit
board).
Table 4: function switches (Logger)

Installation and user manual UNICOM 300 N511
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4 SIM-card
UNICOM 300 can be pre-equipped with a SIM-card.
Suitable GSM-subscriptions are for example M2M subscriptions for GSM CSD and/or GPRS / LTE cat.
(M)1 data.
When using GPRS / LTE Cat. (M)1, UNICOM 300 requires several settings with which UNICOM 300 can
log on to an APN; such as APN name with the corresponding username and password.
4.1 SIM-card placement
Open UNICOM 300 (see figure 1, note 2). The mini-SIM holder is located in the lid of the UNICOM 300
(see figure 3).
Press the metal-colored fastening of the mini-SIM holder with little force and turn counter clockwise,
unlocking the mini-SIM holder and opening it. The mini-SIM can be placed with the gold contacts facing
backwards and the beveled corner upwards (figure 5, item 1). Close the mini-SIM holder by performing
the above-mentioned operations in reverse order.
Insert the SIM card as shown in figure 5, pos. 2.
After placing the mini-SIM, test the correct operation as described in chapter 5.
When changing SIM cards on the same APN, UNICOM 300 retains its IP address and does not
log in again. However, the device can be reached via GSM CSD (only Cat. 1 modem) on the new
number. During a SIM card change, SW1 must always be pressed for at least 4 seconds to
perform a re-initialisation, see also table 3.
Figure 5: placement mini-SIM and SIM card

Installation and user manual UNICOM 300 N511
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5 Into service
5.1 Activation and registry
When using the UNICOM 300 as data logger, it is necessary to carry out the following action with the
central acquisition system:
Activate the modem by operating SW1 for 4 seconds until the NETWORK status LED goes on (see figure
1). The UNICOM 300 now logs on. The registration may take a few minutes. If UNICOM 300 has
successfully logged on to the network, the NETWORK status LED (table 6) will flash. When TCP is active,
the WDS status LED will be active. The UNICOM 300 is now registered.
Let the central acquisition system connect to UNICOM 300 and synchronize the clock. This ensures that
the internal clock is synchronized with the central acquisition system. Wigersma & Sikkema delivers
UNICOM 300 standard with deactivated data logger and modem functions. Clock synchronization will
activate the datalogger functions (the scheduler, interval logger, the historical logger and, if activated, the
FTP). If UNICOM 300 is configured for encoder readout, an encoder initialization will also take place with
the data from the gas meter being read out.
5.2 Device init function
The device init function is used for synchronizing the clock with an NTP-server, sending a first FTP-
message and deactivating the stock lock function after installation of the UNICOM 300.
To activate the device init function, press switch SW1 until status LED INIT flashes once every 4 seconds
(figure 6, 3). Then release SW1.
The device init function can only be activated if NTP, FTP and the APN are programmed.
If they are not programmed, the function cannot be activated, and the status LED INIT will flash 1x per
second (figure 6, 1) when pressing switch SW1.
The initialization then starts, and the current date, time and modem information are requested.
The stock lock of UNICOM 300 is also deactivated. The meter (UNIGAS 300 or UNICOM 300) will then
handle the further device init. If the UNICOM 300 is set as Encoder, the encoder initialization will also be
carried out. When the encoder initialization is complete, the status LED INIT will flash once every 2
seconds (Figure 6, 2).
Next, an FTP message will be sent, and after sending the first FTP-message, the status LED INIT will be
on continuously for 10 seconds (Figure 6, 7) to indicate that the device init has been completed correctly.
If device init is not to be executed, the user must release SW1 within 4 seconds.
5.3 Adaptation of use: data logger <-> transparent modem
Adaptation of use as a data logger to use as a transparent modem:
•Check with UNITOOL whether value C.93.15 is "off" or set the value C.93.15 to "off".
•Activate the stock lock function, see table 3.
Adaptation of use as a transparent modem to data logger:
•Check with UNITOOL whether value C.93.15 is set to "on" or set the value C.93.15 to "on".
•This is done automatically with a clock synchronization by the central acquisition system or when
a device init is executed (see chapter 5.2).
5.4 Out of service
If the UNICOM 300 data logger is taken out of service, the data logger functions must be deactivated to
prevent unnecessary battery consumption and the logging of non-relevant data. Activate the stock lock
function, see table 3.
When FTP/NTP are enabled the device INIT can be started to obtain a service message (see chapter
5.2).

Installation and user manual UNICOM 300 N511
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6 Activation of the modem, TCP and NTP services
6.1 Activation of the modem
The modem can be turned on by pressing switch SW1 for at least 4 seconds until the NETWORK status
LED starts flashing, SW1 can then be released. The UNICOM 300 modem will remain on for 25 to 30
minutes.
If switch SW1 is operated again, the modem will log in again, turning the modem off and on again. This is
apparent as the NETWORK status LED (see Chapter 5) is off for a short time.
6.2 Activation of TCP services
If the TCP server function is activated in UNICOM 300, the device will log on to GPRS/LTE cat. (M)1
when the modem is switched on.
Before the TCP server is activated an IP-address will be assigned to UNICOM 300. If logging on to
GPRS/LTE cat. (M)1, or activating the TCP server fails, this will be repeated up to four times. If after four
attempts the registration is not successful, UNICOM 300 will be registered on the GSM network,
(NETWORK status LED will flash) but not on the GPRS/LTE cat. (M)1 network. The user may optionally
initiate a re-login by means of switch SW1.
6.3 Activation of NTP services
UNICOM 300 is equipped with a function to read out the NTP-time server. When connected to this time
server, the date and time are read out. If NTP is activated and UNICOM 300 has been synchronized with
the NTP server in the last 24 hours, then UNICOM MODEM's clock is no longer synchronized by monitoring
data traffic.
To activate NTP functionality, the NTP time server must be set via C92.65 and C.92.66. In addition, the
APN data must also be set.
The requested NTP time is the GMT time. Through time zone setting (C.92.64) and with DST
(summer/winter time) the time is adjusted in UNICOM 300.
Specific behavior with battery power and clock reading when NTP function is activated:
•The NTP clock is read once per 24 hours, after switching on the modem.
If reading out the NTP time server fails, after 12 hours another attempt will be made to read out the NTP
time server. For battery power, this will only happen if the modem is switched on by a call window or FTP.
Backup battery / back up battery?

Installation and user manual UNICOM 300 N511
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7 Function Check
7.1 System status check UNICOM 300
There are eight status LEDs on UNICOM 300 that show different states. The status LEDs are active if an
optical head is placed on the communication port (SW2, figure 1), or if SW1 (service window) is operated.
This way, the status LEDs are only active in the event that a technician is on site.
Status LED Condition LED (see figure 6)
PWR;
Supply
Continuously on; BATTERY GOOD
Blinking 1 x per 4 seconds; BATTERY LOW
Blinking 1 x per second; BATTERY FLAT
STATUS;
UNICOM
status
10 seconds on; Stock lock activated
Blinking 1 x per 2 seconds; Stock lock not activated
Blinking 1 x per 4 seconds; Stock lock activated
Blinking 1 x per second; Critical error
Network;
Network
status
Continuously on; network registry started
Blinking 1 x per 4 seconds; registered on network
Blinking 1 x per 2 seconds; Connection (CSD; FTP; TCP)
Off; Modem off
WDS;
2G/4G status
Continuously on; Registered on 2G / TCP services
Blinking 1 x per 4 seconds; Registered on 4G
Blinking 1x per 2 seconds; Registered on 4G / TCP services
Off: registered on 2G CSD (only Cat. 1 modem)
SIG1;
GSM
signal status
Continuously on; Main cell < -92 dBm;
Blinking 1 x per 4 seconds; Main cell ≥-92 dBm en < -80 dBm
Blinking 1 x per 2 seconds; Main cell >= -80 dBm;
SIG2; Not functional
INIT; 10 seconds continuously on; device INIT successfully
completed or battery counters reset
Blinking 1 x per 4 seconds; device INIT started
Blinking 1 x per 2 seconds; Encoder readout completed
Blinking 1x per second; device INIT in ERROR
Off: device INIT not activated
DATA; Blinking at transfer of data by modem
Table 6: status LEDs UNICOM 300 MODEM
7.2 System status check UNICOM 300
On the datalogger part of UNICOM 300 two status LEDs (see figure 4) are available which show different
conditions.
Status
LED
Condition
LED
(
see
figur
e
6)
Status Blinking 5 ms every 10 seconds; Stock lock activated
Blinking
5 ms
every
5 second; Stock lock
not activated
Encoder 10 seconds on; Encoder initialization completed successfully
Blinking 1x per 2 seconds; Encoder initialization active
Blinking
1x per
second
;
repeated every 10 seconds
. Encoder
initialization
in error.
Table 7: status LEDs UNICOM 300 datalogger

Installation and user manual UNICOM 300 N511
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8 Configuration
8.1 Gas meters with encoder
Application: data logger
UNICOM 300 is suitable for the use of gas meters with an encoder output from the Itron, GWF, Honeywell
(Elster), Dresser, FMG, RMG, GFO or RMA (Aerzen) products, which are equipped with a NAMUR
interface. To use this function, parameter C.93.40 must be set on by means of UNITOOL service
software. Registration of the encoder counting mode takes place in counter 3.
8.1.1 Initialization encoder
Because UNICOM 300 is provided with a check on the encoder counter value, not every counter value
will be accepted (Reading the encoder counter positions, chapter 8.1.4). To ensure that UNICOM 300
takes over the encoder counter value once, when UNICOM 300 is installed or when changing the gas
meter, UNICOM 300 has four ways to initialize the encoder counter:
1. If the data logger functions are activated. The interval logger and the historic logger are
deleted. Activation can be performed using:
-UNITOOL and setting parameter C.93.30; deactivating stock lock
or
-Takes place when the clock of UNICOM 300 is synchronized by for example a central data
acquisition system or manual time synchronization.
2. When parameter C.93.40 is set to value encoder by means of service software UNITOOL
3. Manual initialization by SW4 (see chapter 8.1.2)
4. Device init as described in chapter 5.2.
8.1.2 Manual encoder initialization
It is possible for a user to manually start an encoder initialization on location.
The procedure is as follows:
-Press SW4 until the Encoder status LED blinks 1x per 2 seconds or is continuously on.
-The Encoder status LED will show the status of the initialization (see table 7 and figure 6).
8.1.3 Readout of gas meter data
UNICOM 300 will, if supported by the encoder counter, read the gas meter data. Data from the gas meter
are serial number, manufacturer and year of manufacturing.
The data from the gas meter is read out:
- When encoder initialization takes place, see chapter 8.1.1.
- If the encoder counter is read out successfully after a failure notification of encoder readout has
been set in the status registry.
8.1.4 Readout of encoder counters
If an encoder counter is connected without initializing it and the position of the encoder counter is lower or
much higher than the value in counter 3 (Vm3) of UNICOM 300, UNICOM 300 will not take over the
encoder counter mode. In the status register a message is made of an incorrect readout of the encoder
counter.
If the encoder counter is reduced, the counter mode will not be adopted by UNICOM 300. A status
message is made of this in the status register. If the return is temporary, UNICOM 300 will take over the
counting position again as soon as it is larger than the last meter reading.

Installation and user manual UNICOM 300 N511
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8.2 Gas meters with a pulse
Application: data logger
Input 1 is always set to pulse, input 2 may be set to pulse or alarm.
Check and / or program the correct pulse ratios (parameter 1:0.7.2 and 2:0.7.2) by means of the
UNITOOL service software.
For UNICOM 300 pulse outputs, a choice can then be made for Vm1-Vm2-Vm3 or Alarm1 via the
parameters mentioned in chapter 12.
8.3 Transparent modem (Electronic volume converter type UNIGAS)
Application: modem for EVC types UNIGAS
Connect the serial cable of the UNIGAS to the serial terminals and make sure settings are as described in
chapter 5.3 and activate the modem.
8.4 Deactivating the data logger
If necessary, the data logger functions of UNICOM 300 can be deactivated.
Deactivation can be performed using UNITOOL and setting parameter C.93.30 or by activating stock lock
with SW1 and SW3 (see table 3).

Installation and user manual UNICOM 300 N511
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9 Battery packs
UNICOM 300 is powered by one or two lithium battery packs (see Figure 4). UNICOM 300 is equipped
with two power supply connectors: CON1 and CON2 (see figure 3). A battery pack can be connected to
each connector. UNICOM 300 automatically detects the presence of 1 or 2 battery packs to calculate the
nominal battery capacity.
9.1 Battery lifespan
The year of production is mentioned on the battery pack. The service life is specified in the table below
(table 8). Contact Wigersma & Sikkema for other user profiles than indicated in the table.
User profile 1 battery
pack
2 battery
packs
1 hour online on the network, 1-minute communication a day > 4 years > 8 years
½ hour online on the network, 1-minute communication a day > 6 years > 10 years
Daily FTP (1x24h), logger 60 min., 30 min. Service window a week > 10 years 15 years
Table 8. Lifespan battery pack(s)
9.2 Battery replacement
First read the ATEX safety instructions (chapter 1.2).
Battery packs (article number NN2709, NN2710 or NN2711) must be replaced within the recommended
time period, see table 8. When using 2 battery packs, both battery packs have to be of the same article. A
combination of e.g. NN2709 and NN2710 is not allowed.
DO NOT REPLACE BATTERY WHEN AN EXPLOSIVE ATMOSPHERE IS PRESENT
Proceedings to replace a single battery
pack:
Proceedings to replace two battery packs:
1 Open the UNICOM 300 (see figure 1) Open the UNICOM 300 (see figure 1)
2 Leave the battery pack to be replaced
connected to the UNICOM 300.
Disconnect the connector from one of the two
battery packs (CON1 or CON2) and remove the
battery pack from UNICOM 300.
3 Insert a new battery pack with the label visible
upwards.
Insert a new battery pack with the label visible
upwards.
4 Connect the connector of the battery pack with
a free battery connection (CON1 or CON2).
Connect the connector of the battery pack with a
free battery connection (CON1 or CON2).
5 Disconnect the old battery pack connector and
remove it from the housing.
Then replace the second battery pack in the same
way (steps 1 to 3).
6 After replacing the battery pack, the battery
consumption counter must be reset. To do this,
press switch SW3 for at least 4 seconds. This
operation may be performed regardless of the
state in which UNICOM 300 is located.
After replacing the battery packs, the battery
consumption counter must be reset. To do this,
press switch SW3 for at least 4 seconds. This
operation may be performed regardless of the
state in which UNICOM 300 is located.
7 Close UNICOM 300.
When closing the cover, ensure that no
cables are trapped between the UNICOM
300 housing and lid
.
close UNICOM 300.
When closing the cover, ensure that no
cables are trapped between the
UNICOM
300 housing and lid
.
8 If necessary, seal the housing as indicated in
chapter 3.
If necessary, seal the housing as indicated in
chapter 3.
Table 9: proceedings for battery pack replacement

Installation and user manual UNICOM 300 N511
DDN5001GHEN/10-2022/Rev.B3 17
The battery packs may be replaced regardless of the state in which UNICOM 300 is located,
provided that the battery packs are replaced one by one so that one package always remains
connected to UNICOM 300.
When placing the battery pack (s), it is important that the notches
(see figure 6, pos. 1) are placed in the right way and that the tab
(see figure 6, item 2) is secured with a click in the housing
Figure 6: placement of battery packs
10 External antennas
Wigersma & Sikkema has external antennas for various applications; a round-beam antenna, a
directional antenna and a vandal-proof antenna. The external antennas are supplied with mounting
material and instructions for connection to UNICOM 300.
The standard antenna can be loosened from the UNICOM 300. Another antenna can then be connected
to the free connection. See also DDN003MHEN
NOTE If the external antenna is placed in the Ex zone,
the antenna must not have a gain greater than 2 dB.
11 Software
The following software package is available
•Configuration and readout of a single UNICOM 300:
UNITOOL software: https://www.wigersma-sikkema.com/en/downloads-2/software/

Installation and user manual UNICOM 300 N511
DDN5001GHEN/10-2022/Rev.B3 18
12 Counters and registers
Below are the counters and registers (parameters) that are present in UNICOM 300 MODEM function
(Chapter 12.1) or UNICOM 300 LOGGER function (Chapter 12.2).
The name is displayed per counter or register, supplemented by the OBIS code, the security level and a
short description.
All counters and registers are readable with the software UNITOOL.
Counting and register can be provided with a write protection. The following security levels are present in
UNICOM 300:
•Protection by programming switch: writing is only possible if the programming switch SW5 is
operated during writing. This form of security can be disabled, see register C.93.24
•Security level 1: password 1 is used to access the mode in which counters and registers can be
read and written.
•Security level 2a: with register 2a, writing of registers is possible. Password 2a corresponds to
the VDEW password.
If passwords are not programmed, registers can be read and written without the use of passwords or with
the use of a random password.
12.1 UNICOM 300
Device data
Name Unit OBIS Security level Description
Device type - C.1.1 Device type and
version UNICOM 300.
Serial number - C.1.0 Serial number of the
UNICOM 300.
Firmware version - 7-0:0.2.0 Firmware version
Firmware CRC - C.91.3 16-bit CRC-value of
the memory
SW modem engine - C.90.23 Software version of
the modem module
IMEI number - C.90.24 IMEI number
SIM-card number - C.90.25 The number of the
inserted SIM card
Modem type - C.90.32 Modem engine type
Track and Trace data - C.91.5 Track and Trace data
UNICOM 300 PCA
GSM Main cell - C.90.7 Strength of the GSM
main cell

Installation and user manual UNICOM 300 N511
DDN5001GHEN/10-2022/Rev.B3 19
Other settings
Name Unit OBIS Security level Description
Device address - C.90.1 Password 2a UNICOM 300 device address
EAN-code - C.96.0 Password 2a Customer specific code for meter
location
Stock lock - C.93.30 Password 2a Activate or deactivate Lock in
stock. Is set to Unlocked after a
time
-
date synchronization.
Consumption data
Name Unit OBIS Security level Description
Battery voltage
MODEM
mV C.90.6 Battery voltage
Battery hour
counter MODEM
h C.6.0 Number of hours in operation on
battery
Operation
h
C.90.13
Number of hours in operation
nominal battery
capacity
Ah C.90.31 The nominal battery capacity.
This is determined
- 1x a day at 00:33
-
With a power
-
on
Supply type - C.91.15 Supply type; Options are:
•BAT
•BAT – BAT
•EXT
•EXT – BAT
•
EXT
–
ACCU
Ah-used Ah C.90.21 Consumed energy from the
UNICOM 300 battery in Ah.
Networkh h C.90.4 GSM / GPRS connected to
network time registration
Commh h C.90.5 GSM / GPRS communication time
registration

Installation and user manual UNICOM 300 N511
DDN5001GHEN/10-2022/Rev.B3 20
GPRS / LTE cat. (M)1 settings
Name Unit OBIS Security level Description
TCP APN Name - C.92.40 Password 2a APN name on which UNICOM
300 must log in for TCP
TCP APN user - C.92.41 Password 2a User name with which you must
log on to the APN for TCP
TCP APN password - C.92.42 Password 2a Password that must be
registered on the APN for TCP
TCP server port
number
- C.92.48 Password 2a TCP server port number
Do not program port 0. This will
result in modem errors
TCP Firewall IP
address
- C.92.67 Firewall IP address
TCP Firewall IP
address mask
- C.92.68 Firewall IP address Mask
TCP server - C.92.51 Password 2a TCP server activated
FTP server 1 user - C.92.43 Password 2a FTP user name
FTP server 1
password
- C.92.44 Password 2a FTP password
FTP server 1 IP of
DSN
- C.92.46 Password 2a FTP server IP address or DNS
naam
FTP server port
number
- C.92.47 Password 2a FTP server port number
Do not program port 0. This will
result in modem errors
FTP workingdir - C.92.89 The working directory for the FTP
file. The FTP file is stored in this
directory.
FTP APN name C.92.90 APN name on which UNICOM
300 must log in for FTP
Optional: can be used for another
APN for FTP. If these have not
been entered, the TCP APN data
will be used for FTP.
FTP APN user C.92.91 Username with which you must
log on to the APN for FTP
Optional: can be used for another
APN for FTP. If these have not
been entered, the TCP APN data
will be used for FTP.
FTP APN password C.92.92 Password which must be
registered on the APN for FTP
Optional: can be used for another
APN for FTP. If these have not
been entered, the TCP APN data
will be used for FTP.
FTP mode - C.92.50 Password 2a FTP mode passive or active
NTP server IP or DNS - C.92.65 NTP IP address or DNS name
NTP server port
number
- C.92.66 NTP port number