ABB EDS500 Series Operating Instructions Manual

Brand: ABB

Model: EDS500 Series

Type: Operating Instructions Manual

ABB EDS500 Series is a versatile voice-frequency telegraphy unit that operates on the principle of binary frequency shift keying. It offers reliable data transmission over telephone lines and can be used in various applications, including remote monitoring and control systems, data acquisition systems, and industrial automation networks. With its advanced features like two- and four-wire connection modes, a wide range power supply, and a comprehensive command line interface, the EDS500 Series provides flexibility and ease of use.

Operating instruction

Modem 50-2400 baud 500FSD20

EDS500 series - FSK modems

Operating instruction

Modem 50-2400 baud 500FSD20

EDS500 series - FSK modems

Application, characteristics and technical data have to

be taken from the hardware data sheet:

500FSD20 Data sheet 1KGT150986

Operation

The 500FSD20 modem is a voice-frequency telegraphy

unit (VFT unit) which operates according to the

principle of binary frequency shift keying. The modem

can operate in two- and four-wire connection. The

mode of operation is set by a command line interface

(CLI).

Connections

Power connector (X1)

The EDS500 devices are equipped with a wide range

power supply for voltages between 24 and 60 Volts DC

(power consumption see device label). The connector

is a 3-pin Phoenix plug with screw terminals.

Pin allocation power supply (X1)

Pin Signal

1 24-60 V DC

2 Functional earth

1 2 3

3 GND

ADVICE

Due to the internal overvoltage protection,

interrupt any connection to ground of the device

for the time of the measurement before you carry

out isolation measurements. This includes the

earthing of the hat rail as well as all shields of all

transmission lines and supply feedings. RJ-12 plugs

or RJ-45 plugs can also establish earthing via the

shield.

Serial interface to DTE (X2)

The RJ-45 connector X2 forms an RS-232-D interface. If

the modem is connected to an RTU, an adapter cable

has to be used which connects the pin pairs.

Pin allocation serial interface DTE (RJ-45)

RS-232-D

Pin Signal

V.24

Signal

V.28

Direction

8 1

1 DSR M1 107 output

Pin allocation serial interface DTE (RJ-45)

2 DCD M5 109 output

3 DTR S1 108.2 input

4 GND GND -

5 RxD C2 104 output

6 TxD D1 103 input

7 CTS M2 106 output

8 RTS S2 105 input

Interface to transmission line (X3)

In two-wire mode X3-1 and X3-2 form terminal NF1

which is used for transmission and reception.

In four-wire mode X3-1 and X3-2 form the transmitter

terminal NF1 and X3-3 and X3-4 form the receiver pair

NF2.

NF terminals

Transmit Receive

2-wire NF1: X3-1 and X3-2 NF1: X3-1 and X3-2

4-wire NF1: X3-1 and X3-2 NF2: X3-3 and X3-4

Pin allocation transmission line interface (X3)

Pin Signal

1 NF1a

2 NF1b

3 NF2a

4321

4 NF2b

Serial interface for configuration (Con0)

The serial interface of the device is signal compatible

to RS-232. The connector is an RJ-12 female plug. The

factory presets are speed 57600 Baud, no parity, 1

stop bit, no flow control. Via the serial interface the

management console can be accessed .

Pin allocation serial interface RS-232 (RJ-12)

RS-232 RS-232 PC SUB-D9

Pin Signal Direction Pin Signal Direction

1 DCD Output 1 DCD Input

2 CTS Output 8 CTS Input

3 RTS Input 7 RTS Output

4 GND - 5 GND -

5 RxD Output 2 RxD Input

6 TxD Input 3 TxD Output

Alarm relay (X4)

The devices are equipped with a potential free alarm

output (relay with isolated switchover contact). This

output corresponds to a device alarm and is activated

when the device looses the power supply or the alarm

LED is constantly on. The reason for the signaling of an

alarm can be referenced in the system alarm table.

Pin allocation alarm output (X4)

Pin Signal

1 & 2 Normal state

1 & 3 Alarm state

1 2 3 4

4 Common contact (connected to 1)

WARNING

The relay is designed for switching only safety extra

low voltages.

Signaling

LED Description Function

off Device is without

power supply

Power Voltage

Supply

green Power supply

switched on

off DTE does not

send

RTS Request to

send

green DTE requests

to send via the

modem

off CTS inactiveCTS Clear to

send

green The CTS is

switched on when

the carrier is

being established.

A transmit delay

time of 20-30ms

has to be adjusted

in DTE settings.

off No signal receivedDCD Data carrier

detected

green Modem signal

received

off good signal

quality level

SQL Signal

quality level

alarm

red

•

signal quality

(SQ) below the

SQ threshold

more than 10

times within 4

seconds

•

no carrier is

detected for

more than

a baudrate

dependent

time

off tranmitter/

receiver test

function inactive

EQZ Equalizer

flash

yellow

0 Hz = best result

25 Hz = worst

result

LED Description Function

off No activity on the

Con0 interface

Con0 Con0

activity

green Data is trans-

mitted via Con0

off No alarm

flash Warning or

configuration

error

Alarm Alarm

red Alarm

Configuration using a serial configuration cable

The serial interface provides access to the command

line. Using a serial configuration cable (500CAB06

1KGT038912R0001), the device can be connected to a

serial port of a PC/notebook.

The default configuration for the serial connection is:

57600 Baud 8N1 (8 data bits, no parity, 1 stop bit), no

hardware flow control.

The command line interface

The command line of the 500FSD20 is similar to the

(DOS) command line known from the PC. All device

properties can be set and shown here.

•

Commands are typed into the console, pressing

<{Enter}> will start execution.

•

Commands can be abbreviated as soon as they

are unambiguous, i.e. <sh sy> is equivalent

to <show system>, <se i f w 4> is

equivalent to <set interface fsk0 wire

4>.

•

A command overview can be listed on every level

by typing <?>. Example: <sh al ?> translates

to <show alarm ?> and results in active

enabled being shown as command keywords

to follow, i.e. one possible command is <show

alarm active>.

•

There are two authentication levels on the

command line: Login authentication and Enable

authentication. Login authentication can be

described as a read only mode and is accessible

directly after establishing a serial connection

with the PC. Enable authentication is required

once you need to change system settings or

show the complete system parameter set.

Enable authentication is reached by entering

the <enable> command. Both authentication

levels can be protected by a password, the

respective commands are <set loginpass

{string20}> and <set enablepass

{string20}>.

•

Configuration commands entered on the

command line interface are stored in the running

configuration of the device, which represents the

current state of the system. To preserve this status

after a reboot, the running configuration must

be transferred to the startup configuration using

the command <write>. During system startup

all commands from the startup configuration

are being executed and thus create the running

configuration. When a configuration stick is

attached to the device, executing the <write>

command results in the running configuration

being copied not only to the startup configuration

but also to the stick configuration (unless the stick

is set to “read only”). During system startup with

attached config stick, the stick configuration over-

writes the startup configuration.

•

The current configuration (running configuration)

can be displayed using the command <show

running-config> (only with Enable

authentication). The start configuration may be

shown using <show startup-config>.

When a config stick is attached, its content can be

shown using <show stick-config >.

System settings

System Identification Settings

For an easier identification of the devices several

description parameters can be set:

•

Hostname: <set system hostname

{name}>

•

Contact: <set system contact

{contact}>

•

Location: <set system location

{location}>

•

Description: <set system description

{text}>

Reset button

Pressing the reset button restarts the device and

loads the saved configuration (startup-config or stick-

config). As a protection against accidental triggering,

the reset button is in a concealed place and can be

reached with a pointed tool (e.g. paper clip).

If the reset button is pressed for more than 5 s, the

modem enters firmware update mode.

ADVICE

If the running configuration (= running-config)

does not match the savedconfiguration (= startup-

config) it is lost with the restart.

ADVICE

The established communication connection will be

lost temporarily during restart.

Firmware Update

The firmware is updated by transferring a firmware

image to the device. This is accomplished by first

pressing the reset button for longer than 5 seconds

to put the modem into firmware update mode.

Then with CON0 of the modem connected to a

PC via a serial cable, open a command window

in Windows on that PC. Change the directory

to the path containing the firmware image and

bootloader software. Then type the command

<serial_flash_programmer.exe -d

f2803x -k f2803x_flash_kernel.txt -

a MOPS-binary -p COMx -b 9600 –v>

where MOPS-binary is the filename of the 500FSD20

firmware, e.g. MOPS-1.0.2.bin, and COMx

denotes the number of the serial port of the PC to

which CON0 of the 500FSD20 is connected. After the

firmware is successfully transferred to the modem, the

reset button needs to be pressed for a restart.

ADVICE

During a firmware update the power supply

must not be interrupted or a reboot must not

be triggered as this could leave the device in an

inoperable state.

Safety

DANGER

Interrupt the power supply before mounting or

dismounting the device.

WARNING

An easy to access manual interrupter has to be

installed into the power feed of the modem to be

able to disconnect the modem from the power

supply in the case of an emergency.

WARNING

The EDS500 devices are intended only for use

in restricted access area. For fire protection

the devices have to be mounted into suitable

cubicles which are certified for the function of a fire

protection housing.

WARNING

The DC power supply has to fulfil the following

requirements in order to supply appropriate fire

protection:

•

Limited power source according to IEC 60950-1

or PS2 classified according to IEC 62368-1

•

Short-circuit current < 8A

WARNING

The device shall be powered off while accessing

any of the connectors X1 (power connector)or X4

(alarm relay). Any other connectors (e.g. RS-232or

4-wire/2-wire communication port/X3) are hot-

pluggable while the device is operating.

WARNING

No plug shall be freely accessible in normal

operation due to safety reasons.

Installation

ADVICE

The EDS500 devices are protection class

II device with functional earthing.

Correct functional earthing is

accomplished by snapping the modem

on the properly earthed DIN-rail (making

contact to backside functional earth

contacts) and additionally connecting

terminal X1-2 (SHIELD) to an earthing

terminal on the DIN-rail.

WARNING

Functional earthing must be done

properly in order for the overvoltage

protection of the modem to work

properly.

"Fig. 4: Schematic installation drawing" shows a

schematic drawing of the correct installation of the

modem. X1-2 has to be connected to functional earth.

Terminal X1-1 is connected to the positive terminal and

X1-3 to the negative terminal of a DC power supply.

The communication line can be either connected in

two-wire or four-wire configuration. For two-wire

configuration connect terminal X3-1 and X3-2 to the

pair of wires. For four-wire configuration connect

terminal X3-1 and X3-2 to the pair of wires used for

transmit direction and X3-3 and X3-4 to the pair used

for receive direction.

The internal transformers of the 500FSD20 have

a galvanic isolation of 3 kV. If a higher level of

protection is needed, additional isolation low-

frequency (LF) transformers have to be used.

See "Fig. 5: Communication line connection by LF

transformer (two-wire connection)" and "Fig. 6:

Communication line connection by LF transformer

(four-wire connection)"for the installation scheme.

Finally, the serial interface has to be connected to the

local data termination equipment (DTE) by connecting

X2 of the 500FSD20 to the serial interface of the DTE

by a shielded serial cable, e.g. 500CAB08.

Figure 1: 560FSD20

Figure 2: 500FSD20 Front plate

Figure 3: 500FSD20

Label

1 2 3

1 2 3 4

Connect DIN-rail to

Protection earth

Figure 4: Schematic installation drawing

NF2a

NF2b

NF1a

NF1b

A1 A1

E1 E1

A2 A2

E2 E2

T-T

T-R

NF1

NF2

OVP

Figure 5: Communication line connection by LF transformer (two-wire connection)

NF2a

NF2b

NF1a

NF1b

A1 A1

E1 E1

A2 A2

E2 E2

A1 A1

E1 E1

A2 A2

E2 E2

T-T

T-R

NF2

NF1

Receive

Transmit

LF signal transformer

OVP

Figure 6: Communication line connection by LF transformer (four-wire connection)

ABB Power Grids Germany AG

P.O. Box 10 01 64

68128 Mannheim, Germany

Tel. +49 621 381-3000

www.abb.com/remote-terminal-units

We reserve the right to make technical

changes or modify the contents of this

document without prior notice. With

regard to purchase orders, the agreed

particulars shall prevail. ABB Power

Grids Germany AG does not accept any

responsibility whatsoever for potential

errors or possible lack of information in

this document.

We reserve all rights in this document and in

the subject matter and illustrations contained

therein. Any reproduction, disclosure to third

parties or utilization of its contents – in whole

or in parts – is forbidden without prior written

consent of ABB Power Grids Germany AG.

1KGT150987 V001 1

ABB EDS500 Series Operating Instructions Manual

ABB EDS500 Series Operating Instructions Manual

ABB EDS500 Series Operating Instructions Manual

Related papers

Other documents