CEL-MAR ADA-I1040 User Manual

User manual

ADA-I1040

RS-232 to RS-485 / RS-422 Converter

1

io_ada-i1040_v1.14_en

ADA-I1040

Copyright © 2007-2017 CEL-MAR sp.j.

Contents

1. GENERAL INFORMATION...................................................................................................................................................................... 3

1.1. WARRANTED INFORMATION.......................................................................................................................................................3

1.2. GENERAL CONDITIONS FOR SAFE USE.................................................................................................................................... 3

1.3. CE LABEL....................................................................................................................................................................................... 3

1.4. ENVIRONMENTAL PROTECTION................................................................................................................................................. 3

1.5. SERVICE AND MAINTENANCE..................................................................................................................................................... 3

1.6. PACK CONTENTS.......................................................................................................................................................................... 3

2. PRODUCT INFORMATION.....................................................................................................................................................................3

2.1. PROPERTIES................................................................................................................................................................................. 3

2.2. DESCRIPTION................................................................................................................................................................................ 4

2.3. CONVERSION OF TX AND RX SIGNALS..................................................................................................................................... 4

2.4. ISOLATION..................................................................................................................................................................................... 5

3. INSTALLATION....................................................................................................................................................................................... 5

3.1. CONNECTION TO RS232 PORT OF PC....................................................................................................................................... 5

3.2. CONNECTION TO RS485 / RS422 BUS........................................................................................................................................ 6

3.2.1. CONNECTION TO 4-WIRE RS422 BUS...............................................................................................................................6

3.2.2. CONNECTION TO 4-WIRE RS485(4W) BUS....................................................................................................................... 7

3.2.3. CONNECTION TO 2-WIRE RS485(2W) BUS....................................................................................................................... 7

3.2.4. EXTENSION OF RS232 COMPUTER PORT........................................................................................................................ 8

3.3. LINE TERMINATION....................................................................................................................................................................... 8

3.4. POWER SUPPLY CONNECTION.................................................................................................................................................. 8

4. CONFIGURATION................................................................................................................................................................................... 8

4.1. DESCRIPTION OF DIP SWITCH SW2.......................................................................................................................................... 8

4.1.1. OPERATING MODE............................................................................................................................................................... 9

4.1.2. SIGNALS (RTS-CTS, DTR-DSR) LOOPING OF RS232 INTERFACE..................................................................................9

4.2. DESCRIPTION OF DIP SWITCH SW1.......................................................................................................................................... 9

4.3. FACTORY DEFAULT.................................................................................................................................................................... 10

5. ACTIVATION......................................................................................................................................................................................... 10

6. DESCRIPTION OF PINS D-SUB9 FEMALE CONNECTOR OF RS232 INTERFACE.......................................................................... 10

7. VERSIONS............................................................................................................................................................................................ 10

8. SPECIFICATION................................................................................................................................................................................... 11

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ADA-I1040

1. GENERAL INFORMATION

Thank you for your purchase of CEL-MAR Company product. This product has been completely tested and is covered by a two year
warranty on parts and operation from date of sale.
If any questions or problems arise during installation or use of this product, please do not hesitate to contact Technical Support at
[phone] or e-mail [email protected].

1.1. WARRANTED INFORMATION

The ADA-I1040 converter is covered by a two year warranty from date of sale. In case of being damaged it will be repair or the
damaged component will be replace. The warranty does not cover damage caused from improper use, materials consumption or any
unauthorized changes. If the product does not function (is damaged), or not operate in accordance with the instructions, will be
repaired or replaced.
All warranty and no warranty repairs must be returned with paid transport and insuring to the CEL-MAR Company.
CEL-MAR Company under no circumstances won't be responsible for ensuing damage from improper using the product or as a result
of random causes: the lightning discharge, the flood, the fire and the like.
CEL-MAR Company is not be held responsible for damages and loss including: loss of profits, loss of data, pecuniary losses ensuing
from using or the impossibility of using this product.
In specific cases CEL-MAR Company discontinue all warranties and in particular do not follow the user manual and do not accept
terms of warranty by the user.

1.2. GENERAL CONDITIONS FOR SAFE USE

The device should be installed in a safe and stable places (eg, electroinstallation cabinet), the powering cable should be arranged so
as not to be exposed to trampling, attaching, or pulling out of the circuit.
Do not put device on the wet surface.
Do not connect devices for nondescript powering sources,
Do not damage or crush powering wires.
Do not make connection with wet hands.
Do not adapt, open or make holes in casings of the device!
Do not immerse device in water or no other liquid.
Do not put the fire opened on device sources: candles, an oil lamps and the like.
Complete disable from the supply network is only after disconnecting the power supply circuit voltage.
Do not carry out the assembly or dis-assembly of the device if it is enabled. This may result to short circuit and damage the device.
The device can not be used for applications that determine human life and health (eg. Medical).

1.3. CE LABEL

CE symbol on organizing the company CEL-MAR a conformity of the device to the Directive: EMC 2014/30/WE
(Electromagnetic Compatibility Directive). Declaration of Conformity is available by contacting with the technical service
by e-mail: [email protected] or by phone:[phone].

1.4. ENVIRONMENTAL PROTECTION

This label on the device inform about putting expended device with other waste materials. Device should send to the
recycling. (In accordance with the act about the Electronic Appliance Expended from day 29 of July 2005)

1.5. SERVICE AND MAINTENANCE

The ADA-I1040 does not require the servicing and maintenance.
Technical support is available at number [phone] in 8.00-16.00, from Monday to Friday or e-mail [email protected].

1.6. PACK CONTENTS

The converter is delivered with the user manual,

2. PRODUCT INFORMATION

2.1. PROPERTIES

● Functioning on 2 or 4-wire network in Point-to-Point and Multi-Point mode,

● Conversion TX, RX signal to RS485/RS422 standard,

● Possibility of connection up to 32 devices on RS485 network,

● Baud rate up to 230,4 kbps,

● Automatic data flow control (transmitter/receiver) on RS485 network,

● Transparent for all protocols: MODBUS, DNP and other,

● Any format of byte, defined with the specification of RS232 interface,

● Power supply 10 - 30 VDC stable min. 1W,

● Possibility of powering from two independent sources,

● 3kV= optoisolation in signal channel between RS232 and RS485/RS422 interface,

● 1kV= or 3kV= galvanic isolation between RS232 interface and power supply,

● Implemented short circuit protection and over-voltage protection on RS485/422 network,

● Connection RS485/RS422 interface via screw terminal block,

● Connection RS232 interface via DB-9 female connector,

● Interface casing,

● Dimensions (W x D x H) 84mm x 23mm x 59mm.

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ADA-I1040

2.2. DESCRIPTION

Many devices as PLC controllers, sensors, measuring transducer, cash registers, electronic weight are equipped with RS232
communication port. The standard has limitation of the lengths cable (the distance 15m which transmissions correctly). Using the
RS485/422 standard to the data transmission is solving this problem. The RS485/RS422 standard lets to connect devices dismissed
about 1200m.
ADA-I1040 converts RS232 to RS485/RS422 without interference in data format. This converter does not require powering from
RS3232 port, supports the asynchronous baud rate up to 230.4 kbps through four or two-pair of twisted-pair cable of RS485/RS422
interface.
Converter has female DB-9F connector for connection of RS232 interface and screw terminal block for connection of RS485/422 bus
and power. Additionally has also JACK socket for power supply. This DB-9F connector has made as DCE, what let connect the
converter to other RS-232 devices, by the use RS232 extender cable (typical modem connection cable) without crossover Tx with Rx,
RTS with CTS, DTR with DSR.
Converter use for functioning Rx, Tx, RTS signals and GND (inserted by the DB-9F socket). Galvanic isolation and optoisolation in
signals channel separate RS232 interface from RS485/RS422 and protect device connected to RS232 port from over-voltage on
RS485/RS422 Bus and power circuit. Over-voltage protection on each RS485/RS422 line was made on base of over-voltage led and
fuses.
The ADA-I1040 should be power from stabilized power supply unit with a voltage ranging from 10 - 30 VDC and minimum power 1W.
Converter can be powered from two independent sources, one connected to terminal block second to the JACK 1,5/3,5 connector.

2.3. CONVERSION OF TX AND RX SIGNALS

Conversion of RS232 to RS485/RS422 (and inversely) are signals: Tx and RX of RS232 interface.
The flow data control on RS485 bus in a converter is automatic.
It is possible to connect 32 devices by the use of ADA-I1040, operating in modes as:

● half duplex (inquiry/response) on 2 or 4 wires multipoint bus,

● full duplex on 4-wire bus

Fig. 1. View

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ADA-I1040

2-WIRE RS-485

4-WIRE RS-485
or RS-422

RS485/RS422
INTERFACE GROUND

POWER SUPPLY -1 10­30V DC

POWER SUPPLY -2
FROM POWER PACK
10-30V DC

Tx+ / A
Tx- / B
Rx+
Rx­GND
NC
Vss ­Vss +

JACK 1,5/3,5

ADA-I1040

RS-232 to RS485/422

ISOLATED CONVERTER

105,50mm

84mm

59mm

Tx

Rx

PWR

(SW1)

(SW2)

10-30V DC

+

-

(RS485/422)

(RS232)

2.4. ISOLATION

Converter ADA-I1040 has 2-way or 3-way galvanic isolation, described in section VERSIONS.

Fig. 2. Insulation structure

3. INSTALLATION

This chapter will show how to connect ADA-I1040 to RS485/RS422, RS232 bus and power supply.
In the purpose of minimization of disruptions from environment is being recommended to:

– apply multipair type shielded cables, which shield can be connected to the earthing on one end of the cable,
– arrange signal cables in the distance not shorter than 25 cm from powering cables,
– apply cable of adequate cross-section due to voltage drops for converter powering,
– use a Interference suppression filters to the power supply converters, installed in one object,
– not supply converter from power circuit device that generates large impulse interference such as transmitters, contactors,

3.1. CONNECTION TO RS232 PORT OF PC

Fig. 3. Signal configuration of RS-232 interface in converter DB-9F connector (female)

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ADA-I1040

23mm

Not use DSR 4

TX 2

GND 5

RX 3

Not use DCD 1

8 RTS not use
9 RI not use

7 CTS

6 DTR not use

Power Supply

10 - 30VDC

RS485/RS422R232

2-WAY ISOLATION

Connection should be done in use of shielded cable (RS232 extender) ended DB-9M male plug, max. lengths up to 15m. It is
recommended to connect shield to ground in one side (PC).

Fig. 4. Connection to RS232 computer port

3.2. CONNECTION TO RS485 / RS422 BUS

RS485/RS422 interface of ADA-I1040 converter is available on Tx+/A, Tx-/B, Rx+, Rx- screw terminal block. ADA-I1040 can operate
on RS485 and RS422 bus. This two networks should have appropriate wiring.

In the purpose of minimization of disruptions from environment is being recommended to:

– apply multipair type shielded cables, which shield can be connected to the earthing on one end of the cable,
– arrange signal cables in the distance not shorter than 25 cm from powering cables,

3.2.1. CONNECTION TO 4-WIRE RS422 BUS

After connection of devices according to diagram below the converter should set to functioning on RS422 bus.

Fig. 5. Example connection of RS422 devices

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ADA-I1040

TxD -3
DTR -4
DSR -6

RTS -7
CTS -8

Computer

SG -5

DTE

DB-9M

2
3
4
6
7
8

RS232 extension cable

DB9F-female / DB9M-male

5

DB-9M

ADA-I1040

RS485/422

Terminal

RS232
DB-9F

Tx-2 Tx+ / A

Tx- / B

Rx+

Rx-

GND

V-

V+

Rx-3
DSR-4
DTR-6
CTS-7

RTS-8

GND-5

2
3

4
6
7
8

5

DB-9F

RxD -2

Direct of transmission

Optional signals

Network 1200m

RS485(4W)/RS422

ADA-I1040

RS485/422
Connector

Vss+

Vss-

POWER

Conn. RS232

DCE/DB-9F

CTS -7
RTS -8

GND -5

Vss-

Vss+

Tx -2

Rx -3
DSR -4
DTR -6

Tx +

Tx ­Rx +
Rx -

RS422 Device

RS422

connector

Tx +

Tx -

Rx +

Rx -

Rt Rt

3.2.2. CONNECTION TO 4-WIRE RS485(4W) BUS

After connection of devices according to diagram below the converter should set to functioning on RS485 bus.

Fig. 6. Example connection of RS485(4W) devices

3.2.3. CONNECTION TO 2-WIRE RS485(2W) BUS

After connection of devices according to diagram below the converter should set to functioning on RS485 bus.

Fig.7. Example connection of RS485(2W) devices

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ADA-I1040

RS485(4W)

Terminal

Tx-

GND
Rx+

Rx-

RS485(4W)

Terminal

Tx+

Tx-

GND
Rx+

Rx-

RS485(4W)

Terminal

Tx+

Tx-

GND
Rx+

Rx-

Rt

Tx+

RtRtRt

Rx+
Rx-

GND

Tx+/A
Tx- /B

Vss+

Vss-

RS232
DB-9F

V-

V+

ADA-I1040

RS232

connector

RS485(4W)

Terminal

Power

RS-485 (4W) bus

RS485 (2W) bus

RS485(2W)

Terminal

Tx- / B
GND

Rx+

Rx-

RS485(2W)

Terminal

Tx+ / A

Tx- / B
GND

Rx+

Rx-

RS485(2W)

Terminal

Tx+ / A

Tx- / B
GND

Rx+

Rx-

Tx+ / A

Rt

Rt

Rx+
Rx-

GND

Tx+ /A

Tx- /B

Vss+

Vss-

RS232
DB-9F

V-

V+

ADA-I1040

RS232

Connector

RS485(2W)

Terminal

Power

3.2.4. EXTENSION OF RS232 COMPUTER PORT

After connection of devices according to diagram below the converter should set to functioning on RS422 bus.

Fig. 8. Extender type connection of RS232 computer port

3.3. LINE TERMINATION

Use the Line Termination (terminator) Rt = 120 ohms will reduce electrical reflection in data line at high baud rate. It is not needed
below 9600Bd. The Line Termination resistor should be use if the distance is over 1000m @ 9600Bd or 700m @ 19200Bd
transmission. The Line Terminations (terminators) Rt in ADA-I1040 are connected to RS485/RS422 bus by using the SW1 switch.

Example connection of Rt are shown on fig 5,6 & 7.

3.4. POWER SUPPLY CONNECTION

To connect power supply to converter, should be used DC power supplies (regulated) output voltage from 10 V= to 30V=, min.
nominal power 1W, e.g. ZS-12/250. Power cable from DC power supplies to device can not be longer than 3m.
For powering the converter, by the use of two wires via terminal block, follow the points:

1. Disconnect screw terminal block (8-pin) from converter,

2. Connect positive (+) end of DC power supplies to Vss+ and negative (-) end to Vss- on terminal block,

3. Connect screw terminal block (8-pin) to converter,

4. Power ON the power supplies.
The converter can be feed from the pin power pack connecting the JACK 1,5/3,5 plug to the socket in the converter (see Fig. 1). It is
possible to connect two different sources of converter feeding e.g. the stabilized power pack with voltage 10-30VDC and the
accumulators battery of 12VDC or 24VDC.
Converter has protection against power supply reverse connection and if after connection power supply on front panel will not lighting
green led PWR, should be checked the correctness connection of power supply.

4. CONFIGURATION

The 8-position Dip switch SW2 is use for setting of operating mode and looping of signals: RTS – CTS, DTR – DSR of RS232
interface and the 4-position switch SW1 is use for:

– connection of Line Terminations (terminators) Rt = 120 W to terminals: [Tx+/A] & [Tx-/B], [Rx+] & [Rx-],
– setting of operation in ECHO mode.

4.1. DESCRIPTION OF DIP SWITCH SW2

The SW2 Dip switch on ADA-I1040 is used to set:

– operation mode in RS422 or RS485,
– signals looping of RTS-CTS, DTR-DSR,

The SW2 Dip switch is located on side surface of converter. All possible setting of Dip switch are shown in tables below (1 & 2). If you
have any question please contact with Technical Department: [email protected]

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ADA-I1040

Direction of transmission

ADA-I1040

RS485/422

Terminal

Vss+
Vss-

Power

RS232
DB-9F

Tx-2Rx+

Rx­Tx+ / A
Tx- / B

GND

V-

V+

Rx-3

DSR-4

DTR-6
CTS-7
RTS-8

SG-5

Vss+

Vss-

Power

RxD -2
TxD -3

DTR -4
DSR -6
RTS -7
CTS -8

Computer

SG -5

RS232
DB-9M

ADA-I1040

RS485/422

Terminal

RS232
DB-9F

Tx-2 Tx+ / A

Tx- / B

Rx+
Rx-

GND

V-

V+

Rx-3
DSR-4
DTR-6
CTS-7
RTS-8

GND-5

Link Cable

DB9Male / DB9Male

RxD-2

TxD-3
DTR-4
DSR-6
RTS-7
CTS-8

SG-5

DB-9M

Optional signals

2
3
4
6
7
8

5

DB-9M

4.1.1. OPERATING MODE

Table 1.

SW2-1 SW2-2 SW2-3 SW2-4 SW2-5 SW2-6 Description Operating Mode

OFF

OFF OFF OFF OFF OFF

RS-422 Bus

4-wire RS422 bus.

full duplex or half duplex

ON ON ON ON ON ON RS-485 bus, automatic data flow control

2-wire & 4-wire RS485 bus

half duplex or full duplex.

4.1.2. SIGNALS (RTS-CTS, DTR-DSR) LOOPING OF RS232 INTERFACE

Table 2.

SW2 Description of function position DIP SW2

SW2-7

ON – signals looping of RTS with CTS enable
OFF – signals looping of RTS with CTS disable

SW2-8

ON – signals looping of DTR with DSR enable
OFF – signals looping of DTR with DSR disable

ATTENTION!

DCD signal is permanently connect with DSR in converter.

Setting the SW2 during data transmission can cause lost data.

4.2. DESCRIPTION OF DIP SWITCH SW1

The SW1 Dip switch on ADA-I1040 is used to set:

– connection of Line Terminations (terminators) to terminals: [Tx+/A] & [Tx-/B], [Rx+] & [Rx-],
– setting of operation in ECHO mode.

The SW1 Dip switch is located on side surface of converter.

Table 3.

SW1 Description of function position DIP SW1

SW1-1

ON – enable terminator to terminals Rx+, Rx­OFF – disable terminator to terminals Rx+, Rx-

SW1-2

ON – enable terminator to terminals Tx+/A, Tx-/B
OFF – disable terminator to terminals Tx+/A, Tx-/B

SW1-3

ON – looping of B signal
OFF – not looping of B signal

SW1-4

ON – looping of A signal
OFF – not looping of A signal

ATTENTION !

To set ECHO mode SW1-3 & SW1-4 MUST BE in ON position.

If only one SW1 is in ON position the ECHO mode is NOT enabled and can cause errors during transmission.

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ADA-I1040

4.3. FACTORY DEFAULT

The default setting of ADA-I1040 is:

1. RS-485bus, automatic data flow control,

2. RTS-CTS looped.

3. DTR-DSR-DCD looped.

4. Terminators disable.

5. Disable ECHO operation mode.

SW2 Setting

SW2-1 SW2-2 SW2-3 SW2-4 SW2-5 SW2-6 SW2-7 SW2-8

ON ON ON ON ON ON ON ON

SW1Setting

SW1-1 SW1-2 SW1-3 SW1-4

OFF OFF OFF OFF

5. ACTIVATION

After properly connection and setting,according to section above the ADA-I1040 can be power ON. Once activated the green LED
PWR on front panel of module should illuminate. If after connection power supply the LED will not lighting, check the correctness of
connecting power supply. When data is present LEDs should blink. A summary table of LED indications is listed below:

LED Description

PWR Signalization of Power Supply

RX Signalization of data receiving from by ADA- I1040 from RS485/RS422.

TX Signalization of data transmission from ADA-I1040 through RS485/RS422

ATTENTION !!!

AT SPEEDS ABOVE 38.400BPS TX AND RX LED WILL BE LESS LIGHT, DURING DATA TRANSMISSION.

6. DESCRIPTION OF PINS D-SUB9 FEMALE CONNECTOR OF RS232 INTERFACE

Pin Signals Description ADA-I1040

1 (DCD) Data Carrier Detected Connected with DSR

2 (TX) Transmit Data Transmitter

3 (RX) Receive Data Receiver

4 (DSR) Data Set Ready Can be connected with DTR by use of SW2

5 (SG) Signal Ground GND

6 (DTR) Data Terminal Ready Can be connected with DSR by use of SW2

7 (CTS) Clear to Send Data Can be connected with RTS by use of SW2

8 (RTS) Request to Send Data Can be connected with CTS by use of SW2

9 (RI) Ring Indicator Not connected

7. VERSIONS

ADA- I1040 - -

Order example:
Product Symbol: ADA-I1040-1-2

1 – basic version of electronic,

2 - galvanic isolation 1kV=,

Electronic versions:

Basic,

1

Special,

2

Galvanic isolation:

1kV=

2

3kV=

3

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ADA-I1040

8. SPECIFICATION

TECHNICAL DATA

Transmission Parameters

Interface RS-232 RS-485/RS-422

Connector

DSUB-9 Female Screw terminal block - max. Ø 2,5mm

2

Max. Line length

15 m 1200 m

Max. number of connected device

1 32 / 2

Transmission line

DB9F/DB9M multicore cable 9x0,34
shielded or 9-pair twisted cable, UTP
9x2x0,5 (24AWG) shield inside large
interferences STP 9x2x0,5 (24AWG).

1-pair or 2-pair twisted cable, UTP Nx2x0,5
(24AWG), shield inside large interferences
STP Nx2x0,5 (24AWG)

Standards

EIA-232, CCITT V.24, EIA-485, CCITT V.11

Max. baud rate 230,4 kbps

Transmission type

Asynchronism full duplex, half duplex.

Optical Signalization

• RX - red LED data reception on RS-485/RS-422 port,

• TX - yellow LED data transmission on RS-485/RS-422 port,.

• PWD – green LED (power supply)

Electrical Parameters

Power requirements

10 - 24 – 30 V DC

Power Cable

Recommended length of power cable – up to 3m

Power

<1W

Protection from reverse power polarization

YES

Galvanic Isolation

1kV= or 3kV= between RS232 interface and power supply. GND of power circuit is the
GND of RS485/422 interface.

Optoisolation

3kV= in signal channel between RS232 and RS485/RS422 interface

Electromagnetic compatibility

Resistance to disruptions according to the standard PN-EN 55024.
Emission of disruptions according to the standard PN-EN 55022.

Safety requiring

According to the PN-EN60950 norm.

Environment

Commercial and light industrial.

Environmental Parameters

Operating temperature

-30 ÷ 60°C

Humidity

5 ÷ 95% - non-condensing

Storage temperature

-40 ÷ 70°C

Casing

Dimensions (W x D x H)

84 mm x 59 mm x 23 mm.

Material

ABS

Degree of casing protection

IP20

Weight

0,10 kg

Implementation of Standard

-------

Location during work

Free

Mounting method

-------

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ADA-I1040

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ADA-I1040

Dear Customer,

Thank you for purchasing CEL-MAR Company product.
We hope that this user manual helped connect and start up the ADA-I1040 converter. We also wish to inform you that we are a
manufacturer of the widest selections of data communications products in the world such as: data transmission converters with
interface RS232, RS485, RS422, USB, Ethernet, Wi-Fi, Current Loop, Fibre-Optic Converters and other.

Please contact us to tell how you like our products and how we can satisfy you present and future expectation.

CEL-MAR sp.j.

Computers Science and Electronic Factory
str Sciegiennego 219C
25-116 Kielce, POLSKA

Tel....................................................: [phone]

Tel/fax..............................................: [phone]

Web.................................................: http://www.cel-mar.pl

Office................................................: [email protected]

Sales department............................ : [email protected]

Technical information ..................... : [email protected]