socomec RS232 User manual

CONVERTER
RS232 <=> RS485
Operating instructions
GB MAKE YOUR BUSINESS SAFE

SOCOMEC - Ref. : 874 666 B GB
Converter
2
GENERAL INFORMATION __________________________________3
Safety __________________________________________________3
Maintenance_____________________________________________3
Introduction _____________________________________________3
APPROVALS AND CONFORMITY____________________________4
Declaration of conformity __________________________________5
SPECIFICATIONS __________________________________________6
Environmental conditions and type tests _____________________6
Main features ____________________________________________8
INSTALLATION ____________________________________________9
Mounting/removal ________________________________________9
Connections____________________________________________10
LED Indicators __________________________________________10
DIP switch settings ______________________________________11
FUNCTIONAL DESCRIPTION ______________________________13
Field of application ______________________________________13
APPLICATION EXAMPLE __________________________________15
Contents
GB

IMPORTANT NOTE TO BE READ BEFORE INSTALLATION
Safety
Check that your application meets the equipment's
technical specifications for operation.
Dangerously high voltage levels can be produced when
this equipment is connected to the power supply or TNV
circuits.
To prevent electric shocks, the equipment must be
disconnected from the power supply and all other
electrical connections.
You are recommended to ground yourself to avoid
electrostatic discharge (ESD) damage to internal
components (e.g.: wear electrostatic bracelets.
BEFORE INSTALLATION
This equipment is designed for industrial use. It must
be installed in an equipment room where access is
strictly restricted to authorised personnel.
The power supply must have adequate electrical
protection and it must be possible to disconnect the
equipment manually.
Ensure that the installation complies with current national
regulations.
This equipment uses convection cooling. Ensure to leave
sufficient space around the equipment to enable proper
airflow (refer to the chapter on installation).
Maintenance
No maintenance is required provided that the equipment
is used under the conditions specified.
Introduction
The RS232<=>RS485 converter has been designed to
convert signals between an RS232/V.24 interface and
an RS485 interface. This equipment is often used in
multidrop applications, connected to a PC, automation
devices and other industrial equipment.
In 2 wire half-duplex mode (RS485), the converter can
automatically control the direction of the transmission
on the bus by data flow. In this case, the converter will
automatically determine the bus reversal depending on
the direction of the data transmitted.
In this way, the converter can also be used to connect
equipment which has no handshaking signal.
The maximum data transmission rate is 115.2 Kbit/s.
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SOCOMEC - Ref. : 874 666 B GB
RS232 <=> RS485
GENERAL INFORMATION
Converter
Read the manual carefully and ensure you have
fully understood its contents before operating
this equipment for the first time.
This equipment must only be installed
by qualified technicians.

RS232 <=> RS485
Converter
4SOCOMEC - Ref. : 874 666 B GB
RS232 <=> RS485
APPROVALS AND CONFORMITY
Type Accreditation/
Compliance
EMC standard EN 61000-6-2 Immunity for industrial environments
EN 55024 Immunity for IT equipment
EN 61000-6-3 Emission standard for residential environments
FCC part 15 Class B
EN 50121-4 Railway applications: immunity for signalling and telecommunications apparatus.
IEC 62236-4 Railway applications: immunity for signalling and telecommunications apparatus.
Safety EN 60950 IT Equipment

5
SOCOMEC - Ref. : 874 666 B GB
RS232 <=> RS485
Converter
APPROVALS AND CONFORMITY
Declaration of conformity
INTER_036_B_GB

Environmental conditions and type tests
RS232 <=> RS485
SPECIFICATIONS
Converter
6SOCOMEC - Ref. : 874 666 B GB
Phenomenon Standards Description Level
EN 61000-4-2 Unit contact ± 6 kV
Unit air ± 8 kV
IEC 61000-4-3 Unit 10 V/m 80% AM (1 kHz), 80 – 1 000 MHz
20 V/m 80% AM (1 kHz), 800 – 960 MHz
20 V/m 80% AM (1 kHz), 1 400 – 2 000 MHz
ENV 50204 Unit 20V/m modulated pulse 200 Hz, 900 ± 5 Mhz
EN 61000-4-4 Signal ports ± 2 kV
Supply ports ± 2 kV
EN 61000-4-5 ± 2 kV line to earth, ± 2 kV line to line
Balanced signal port ± 2 kV line to earth, ± 1 kV line to line
Supply ports ± 2 kV line to earth, ± 2 kV line to line
EN 61000-4-6 Signal port 10 V 80% AM (1 kHz), 0.15 – 80 MHz
Supply port 10 V 80% AM (1 kHz), 0.15 – 80 MHz
EN 61000-4-8 Unit 100 A/m, 50 Hz, 16.7 Hz & 0 Hz
EN 61000-4-9 Unit 300 A/m, 6.4 / 16 pulse
EN 61000-4-11 AC supply port 10 & 5000 ms interruption
30% 10 & 500 ms reduction
60% 100 & 1000 ms reduction
Power frequency 50 hz EN 61000-4-16 Signal port 100 V 50 Hz
Power frequency 50 hz SS 436 15 03 Signal port 250 V 50 Hz
EN 61000-4-29 DC supply port 10 & 100 ms interruption
10 ms, 30% reduction
10 ms, 60% reduction
+20% above & –20% below rated voltage
Radiated emission EN 55022 Unit Class B
FCC part 15 Class B
EN 55022 AC supply port Class B
FCC part 15 AC supply port Class B
EN 55022 DC supply port Class B
Dielectric strength 2 Kv rms 50Hz 1 Min.
3 Kv rms 50Hz 1 Min.
2 Kv rms 50 Hz 1 Min. (@ rated voltage<60V)
ESD Electrostatic
discharge
Burst
(fast transient)
Surge
(lightning)
HF current injection
Power frequency
magnetic field
Pulse magnetic field
Voltage
variation and dips
Voltage
variation and dips
Signal ports to all other
Supply ports to all
other
Conducted emission
Unbalanced signal port
Modulated
electromagnetic
radiation (AM)
Electromagnetic
radiation 900 Mhz

Environmental conditions and type tests
ENVIRONMENTAL
RS232 <=> RS485 Converter
SPECIFICATIONS
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SOCOMEC - Ref. : 874 666 B GB
Phenomenon Standards Description Level
Temperature Operating - 40 to +70°C
Storage - 40 to +70°C
Humidity Operating 5 to 95% relative humidity
Storage 5 to 95% relative humidity
Altitude Operating 2000 m / 70 kPa
MTBF Operating 10 years
Vibration IEC 60068-2-6 Operating 7.5 mm, 5 – 8 Hz
2 g, 8 – 500 Hz
Shock IEC 60068-2-27 Operating 15 g, 11 ms
ENCLOSURE
Phenomenon Standards Description Level
Unit UL 94 PC / ABS Flammability class V-1
Dimensions LxHxD 35 x 121 x 119 mm
Weight 0.19 kg
Protection index IEC 529 Unit IP 21
Cooling Convection
Mounting Horizontal on 35 mm DIN-Rail

Main features
RS485
RS232 <=> RS485
SPECIFICATIONS
Converter
8SOCOMEC - Ref. : 874 666 B GB
Electrical specifications RS485
Speed 1200 bit/s – 115.2 kbit/s
Data format 7 or 8 bits, Odd, Even or None parity, 1 or 2 stop bit
Connection Detachable screw terminal
Conductor size 0.2 – 2.5 mm2(AWG 24-12)
Transmission range In accordance with EIA RS485
≤1200 m, depending on cable type and speed
Configuration 120 Ωtermination
and 680 Ωfail-safe biasing by DIP-switch
Protection Installation Fault Tolerant (up to ± 60 V)
RS232
Electrical specification RS232-C
Speed 1200 bit/s – 115.2 kbit/s
Data format 7 or 8 bits, Odd, Even or None parity, 1 or 2 stop bit
Connection 9 pin D-sub female DCE
Transmission range 15 m
INPUT SUPPLY
RS232 <=> RS485
Rated voltage 95 to 240 VAC
110 to 250 VDC
Operating voltage 85.5 to 264 VAC
88 to 300 VDC
Rated current 21 mA @ 95 VAC
10 mA @ 110 VDC
Rated frequency 48 – 62 Hz / DC
Polarity Independent polarity
Connection Detachable screw terminal
Conductor size 0.2 – 2.5 mm2(AWG 24-12)

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SOCOMEC - Ref. : 874 666 B GB
RS232 <=> RS485
INSTALLATION
Converter
Mounting / removal
This equipment must be mounted on a 35 mm DIN-rail,
mounted horizontally to a wall or inside an apparatus
cabinet.
Snap-on mounting (see figure).
This equipment uses convection cooling. To optimise the
flow of air around the unit, leave sufficient space around
the equipment and observe the following instructions:
Recommended space around unit:
- above/below: 25 mm,
- right/left: 10 mm.
It is essential to leave this space around the unit to
ensure correct operation across the full range
of temperatures and service life.
CLICK !
10 mm
*
(0.4 inches)
25 mm
25 mm
COOLING
Press down on the black clip on the top of the unit.
(See figure)
REMOVAL
* Allow the correct space (Right/Left) to ensure correct
operation across the full range of temperatures.
INTER_037_AINTER_038_BINTER_039_A

Pos. Description Product marking
1 AC: Neutral
DC: Voltage – N/–
2 AC: Line
DC:Voltage + L/+
LED Indicators
RS232 <=> RS485
INSTALLATION
Converter
10 SOCOMEC - Ref. : 874 666 B GB
Connections
> RS485
> RS232 (DCE)
S2 DIP-switch
(see details page 11)
S1 DIP-switch under cap
(for details see page 11)
Pos. Direction Description
3 Input / Output T-: Line RS485
4 Input / Output T+: Line RS485
LED Indicators
(see details below)
Pos. Direction Description
1–
2 Output Received Data (RD)
3 Input Transmitted Data (TD)
4–
5 – Earth (Signal Ground)
6 Output Data Set Ready (DSR)
7 Input Request To Send (RTS)
8 Output Clear To Send (CTS)
9 –
> Input supply
RAILWAY INSTALLATION CLOSE TO THE RAILS
For a cable located inside 3 m boundary and connected
to this port, the use of a shielded cable is recommended,
to minimise the risk of interference. The cable shield
should be properly connected (360°) to an earthing point
within 1 m of this port. This earthing point should have
a low impedance connection to the conductive enclosure
of the apparatus cabinet, or similar, if the unit is built-in.
This conductive enclosure should be connected to the
earthing system of the installation and may be directly
connected to the protective earth.
LED Status Description
PWR On Operating
Off Not operating
TD On Transmitted data: data received from local RS232 port
Off No data transmitted
RD On Received data: data sent to the RS232 port
Off No data received
RTS On RTS signal active on RS232 interface
Off RTS inactive
CTS On CTS signal active on RS232 interface
Off CTS inactive
INTER_008_B