Microlectra SM7 User manual

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RADIO TRANSMISSION
MODULE
SM7
USERS MANUAL
Microlectra bv.
www.microlectra.nl [email protected]

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1. APPLICATION................................................................................ 5
2. SET OF THE SM7 MODULE.......................................................... 6
3. INSTALLATION ............................................................................. 6
 3.1. Module Mounting.................................................................... 7
 3.2. SM7 Electrical Connections ................................................... 8
 3.3. Way of Connection with Devices .......................................... 10
 3.4. Requirements for Outlet Connections ...................................11
 3.5. Examples of LUMEL-Heat, LUMEL-Energy
  and LUMEL 3000 Configurations to Co-operate
  with SM7 Module...................................................................11
4. MODULE PRINCIPLE OF OPERATION...................................... 12
 4.1. First Start of the SM7 Module and PC Computer................. 14
4.1.1. Installation of the Configuration Program on PC ....... 14
4.1.2. Configuration Procedure of the SM7 Module ............ 14
5. TECHNICAL DATA....................................................................... 20
6. SM7 ORDER CODES................................................................... 22
7. MAINTENANCE AND WARRANTY............................................. 22
CONTENTS
RADIO TRANSMISSION MODULE
SM7
USERS MANUAL
December 2006 - KZ 1285/06

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1. APPLICATION
The SM7 radio transmission module is a device destined for data transmission by
radio in the non-licensed 433 MHz or 868 MHz band with output power from - 20
to 10 dBm in one of ten accessible radio channels. The data baud rate in the radio
channel changes in the range: 4800.....76800 bit/s, however in the serial port, it is
possible to set up the baud rate in the range: 4800.....115200 bits/s.
These changes are carried out by means of the annexed SM7Config.exe configu-
ration program.
The offered module is become completed with a stub antenna equipped with a
connector of SMA type, SMA/SMA angle adapter and a concentric cable destined
to locate the antenna in any place.
The SM7 radio transmission module finds application among other things in power
engineering, automatics - for monitoring data of the manufacturing process and in
many other applications requiring data transmission.
The SM7 module enables the data readout from devices equipped with serial in-
terfaces (RS-485 or RS-232). The data exchange with the master device is carried
out in the radio circuit with 433 MHz or 868 MHz frequency.
The SM7 module enables the work in one of ten radio channels, in two different
types of data encoding, Manchester or NRZ.
The addressing radio circuit has been applied in the module, what gives the possibility
of grouping modules working on the same radio channel.
Exemplary applications of the SM7 module are presented on the fig. 1.
Fig.1. Exemplary monitoring of temperature, humidity and pressure

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2. SET of the SM7 MODULE
The set of the data acquisition module is composed of:
SM7 module .................................................................................. 1 pc,
stub antenna.................................................................................. 1 pc,
SMA/SMA angle adapter ............................................................... 1 pc,
antenna cable................................................................................ 1 pc,
plug with screw terminals of BU1005 type ...................................2 pcs,
plug with screw terminals of BU0204 type ...................................2 pcs,
SM7 user’s manual........................................................................ 1 pc,
warranty card................................................................................. 1 pc,
mini CD with software ................................................................... 1 pc.
When unpacking the instrument, please check whether the type and execution code
on the data plate correspond to the order.
3. INSTALLATION and SAFETY REQUIREMENTS
Symbols located in this service manual mean:
WARNING!
Warning of potential, hazardous situations.
Especially important. One must acquaint with this before connecting
the instrument. The non-observance of notices marked by these
symbols can occasion severe injuries of the personnel and the
damage of the instrument!
CAUTION!
Designates a general useful note. If you observe it, handling of
the meter is made easier. One must take note of this, when the
instrument is working inconsistently to the expectations. Possible
consequences if disregarded !
In the security scope the instrument meets the requirements of the EN 61010 -1
standard.
Remarks concerning the operator safety:
1. General
The instrument is destined to be mounted on a 35 mm rail acc. to the fig. 2.
Non-authorized removal of the required housing, inappropriate use, incorrect
 installation or operation create the risk of injury to personnel or damage to

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 equipment. For more detailed information, please study the present user’s
 manual.
All operations concerning transport, installation, and commissioning as well
 as maintenance must be carried out by qualified, skilled personnel and
 national regulations for the prevention of accidents must be observed.
According to this basic safety information, qualified, skilled personnel are
 persons who are familiar with the installation, assembly, commissioning, and
 operation of the product and who have qualifications necessary for their
 occupation.
2. Transport, storage
Please observe the notes on transport, storage and appropriate handling.
Observe the climatic conditions given in Technical Data.
3. Installation
The meter must be installed according to the regulation and instructions given
 in this user’s manual.
Ensure proper handling and avoid mechanical stress.
Do not bend any components and do not change any insulation distances.
Do not touch any electronic components and contacts.
Instruments may contain electrostatically sensitive components, which can
 easily be damaged by inappropriate handling.
Do not damage or destroy any electrical components since this might
 endanger your health!
4. Electrical connection
Before switching the instrument on, one must check the correctness of
 connection to the network.
In case of the protection terminal connection with a separate lead one must
 remember to connect it before the connection of the instrument to the mains.
When working on live instruments, the applicable national regulations for the
 prevention of accidents must be observed.
The electrical installation must be carried out according to the appropriate
 regulations (cable cross-sections, fuses, PE connection). Additional
 information can be obtained from the user’s manual.
The documentation contains information about installation in compliance with
 EMC (shielding, grounding, filters and cables). These notes must be observed
 for all CE-marked products.
The manufacturer of the measuring system or installed devices is responsible
 for the compliance with the required limit values demanded by the EMC
 legislation.

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5. Operation
Measuring systems including SM7 modules must be equipped with protection
 devices according to the corresponding standard and regulations for
 prevention of accidents.
After the instrument has been disconnected from the supply voltage, live
 components and power connections must not be touched immediately
 because capacitors can be charged.
The housing must be closed during operation.
6. Maintenance and servicing
Please observe the manufacturer’s documentation.
Read all product-specific safety and application notes in this user’s manual.
Before taking the meter housing out, one must turn the supply off.
The removal of the instrument housing during the warranty contract period
 may cause its cancellation.
3.1. Module mounting
The module is fixed on a 35 mm rail acc. to the fig.2.
Fig.2. Overall dimensions and module fixing way

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3.2. SM7 Electrical Connections
The supply and external signals must be connected acc. to the fig. 3 and the
table 1 in which the assignment of particular outlets of the SM7 module has been
described.
a) for 85...253 V a.c./d.c. and 20...50 V a.c./d.c. supplies
b) for 7....35 V d.c. supply
Fig. 3. Description of SM7 outlets

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Description of SM7 outlets
Terminal No Terminal description
 1 TxD RS-232 line
 2 RxD RS-232 line
 3 GND RS-232 line
 4 (not used)
 5 (not used)
 6 (not used)
 7 +5 V 25 mA line
 8 GND RS-485 line
 9 A RS-485 line
 10 B RS-485 line
 11 Supply line (+ for d.c. current supply)
12 Supply line (- for d.c. current supply)
 13 Functional ground line (d.c. supplied)
 14 (not used)
 15 (not used)
 16 (not used)
 17 (not used)
 18 (not used)
Table 1
Description of SM7 module diodes Table 2
Markings Description
RxD
(red)
TxD
(yellow)
RxRF
(red)
TxRF
(green)
Data receipt from the serial port
Data transmission to the serial port
Receipt of radio data
Transmission of radio data

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3.3. Way of Connection with Devices
The way of SM7 module connection to RS-232 or RS-485 interfaces
are presented on fig. 4 and 5.
Fig.4 Connection way of SM7 module to the RS-232 bus
Fig.5 Connection way of SM7 module to the RS-485 bus

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Caution:
Considering electromagnetic interference, one must apply shielded
wires to connect RS-485 interface signals. The shield must be con-
nected to the earth terminal in a single point. The supply should be
connected to the earth terminal in a single point. The supply should
be connected by a two-wire cable, with an appropriate diameter of
wires assuring its protection by means of an installation cut-out.
3.4. Requirements for Outlet Connections
Practically, different interference sources occurring, influence on the module in a
continuous or impulse way from the supply network side (in consequence of the
other device operations). The level of this interference should be reduced to a value
lower than the module immunity threshold, first of all through the appropriate module
installation in the object.
In order to obtain a full immunity of the module against electromag-
netic interference in an environment with an unknown interference
level, it is recommended to observe following principles:
Do not apply the module from the network in the proximity of devices
 generating high impulse interference,
Apply network filters for the group of modules servicing the same object,
Apply the general principles, that wires (group of wires) leading different
 signals should be led farther away to one another (not less than 50 cm),
 and crossings of such group of wires made at an 90°C angle.
3.5. Example of Lumel Heat, Lumel Energy and Lumel 3000 Confi-
guration to Co-operate with the SM7 Module
Lumel Heat and Lumel 3000 systems communicate with industrial devices by means
of COM serial ports. The SM7 module does not require the installation of whatever
programmable logic controller.
In case when there is not enough of serial ports in the computer, one can increase
this number installing a PD10 or PD12 USB converter on the bus, what extends
computer resources with additional COM ports. After installing additional COM serial
ports, one can refer to them in systems of Lumel series. Then, one must introduce
or change supervisory calls to the added communication ports, in new or existing
applications or system configurations.
Lumel Energy softwares in older version then 2.5, service maximally 4 serial ports,
and they must be installed as COM 1...4 in such systems.