Westermo FD-20 User Manual

Fieldbus adapter,

PROFIBUS DP Master

INSTALLATION MANUAL

6630-2220

www.westermo.com

FD-20

©

Westermo Teleindustri AB • 2004 • REV. C

2 6630-2220

Contents

1. Safety .................................................................................................................................................................................. 3

2. Approvals ....................................................................................................................................................................... 3

2.1 Declaration of Conformity .......................................................................................................................... 4

3. Introduction ............................................................................................................................................................... 5

3.1 Field of application ....................................................................................................................................... 5–6

4. Specifications ..................................................................................................................................................... 7–8

5. Maintenance .............................................................................................................................................................. 8

6. Installation .......................................................................................................................................................... 9–26

6.1 Mounting/Removal ............................................................................................................................................. 9

6.2 Connections ......................................................................................................................................................... 10

6.2.1 Power ............................................................................................................................................................. 11

6.2.2 PROFIBUS DP ........................................................................................................................................ 11

6.2.3 RS-232 (DTE) ........................................................................................................................................... 11

6.2.4 RS-485 ........................................................................................................................................................... 11

6.3 Indicators ................................................................................................................................................................ 12

6.3.1 LEDindicators .......................................................................................................................................... 12

6.4 Configuration ...................................................................................................................................................... 13

6.4.1 DIP switch settings ..................................................................................................................... 13–15

6.4.2 On-line configuration using SyCon®,

a universal System Configurator

................................................................................................ 16

6.4.2.1 Initiate PROFIBUS DP Master Configuration ................................................... 16

6.4.2.1.1 The first run (no saved project),

Initiate communication

............................................................................................ 16

6.4.2.2 PROFIBUS DP Master configuration using SyCon

®

...................................... 17

6.4.2.2.1 Create a new configuration ................................................................................... 17

6.4.2.2.2 Open an existing project ......................................................................................... 17

6.4.2.2.3 GSD file ................................................................................................................................. 18

6.4.2.2.4 Insert PROFIBUS DP Master .............................................................................. 18

6.4.2.2.5 PROFIBUS DP Master configuration ............................................................ 19

6.4.2.2.6 Insert PROFIBUS DP Slave ................................................................................... 19

6.4.2.2.7 PROFIBUS DP Slave configuration ....................................................... 20–22

6.4.2.3 Load the configuration to the FD-20 ........................................................................ 22

6.4.2.4 Store configuration ................................................................................................................ 23

6.4.2.5 Diagnostics functions ............................................................................................................. 23

6.4.2.5.1 Live list, all devices ....................................................................................................... 23

6.4.2.5.2 Debug mode, PROFIBUS DP and Slave diagnostic ............................ 24

6.4.2.5.3 Global State Field ................................................................................................ 25–26

7. Functional description .................................................................................................................... 27–30

7.1 Halt state ................................................................................................................................................................ 28

7.2 Run state ................................................................................................................................................................. 28

7.3 LED error indication ............................................................................................................................ 29–30

36630-2220

1. Safety

General:

Before using this unit, read this manual completely and gather all information on
the unit. Make sure that you understand it fully. Check that your application does
not exceed the safe operating specifications for this unit.

Before installation, maintenance or modification work:

Prevent damage to internal electronics from electrostatic discharges (ESD)
by discharging your body to a grounding point (e.g. use of wrist strap).

Prevent access to hazardous voltages by disconnecting the unit from AC/DC
mains supply and all other electrical connections.

Installation:

This unit should only be installed by qualified personnel.
This unit should only be installed in a “restricted access area”, for example

a lockable cabinet where access is restricted to service personnel only.
This unit is intended for permanent connection to the AC/DC mains supply.
The power supply wiring must be sufficiently fused, and if necessary it must be

possible to disconnect manually from the AC/DC mains supply. Ensure compliance
to national installation regulations.

Units with the rated voltage exceeding 42.4 V peak or 60 VDC, are defined as
class I equipment with a protective earthing conductor terminal.

Units with the rated voltage up to 42.4 V peak or 60 VDC, are defined as class III
equipment and shall be separated from hazardous voltage by double or reinforced
insulation.

This unit uses convection cooling.To avoid obstructing the air flow around the
unit, follow the spacing recommendations (see Installation section).

2. Approvals

Conformity with the Directive 89/336/EEC Electromagnetic Compatibility (EMC)
has been assessed by application of standards EN 61000-6-2 (industrial immunity) and
EN 61000-6-4 (industrial emission).

Meets EN 50170, Profibus-DP Specification.

FCC Part 15 Notice: This equipment has been tested and found to comply with the limits for a Class A digital device,

pursuant to Part 15 of the FCC Rules.These limits are designed to provide reasonable protection

against harmful interference when the equipment is operated in a commercial environment.

This equipment generates, uses, and can radiate radio frequency energy and, if not installed and

used in accordance with this installation manual, may cause harmful interference to radio

communications. Operation of this equipment in a residential area is likely to cause harmful

interference in which case the user will be required to correct the interference at his own

expense.

!

!

!

4 6630-2220

2.1 Declaration of Conformity

56630-2220

3. Introduction

The FD-20 is designed to provide a method of transferring PROFIBUS I/O data over
serial data links.

The FD-20 contains a PROFIBUS master that can control a network of PROFIBUS DP
Slaves connected to its fieldbus port.The unit can be easily configured within the limits set
by the serial data rate to transfer input and output data between PROFIBUS networks.
The unit is able to transfer PROFIBUS DP data over leased line, dial up modems,
Ethernet or radio systems.

The FD-20 can be used in conjunction with the FD-10
(which contains a PROFIBUS DP Slave)

All Westermo Fieldbus Adapters use the same protocol to communicate with each other
via the serial interface.

3.1 Field of application

Point to point transfer

The continuous transfer of defined PROFIBUS I/O data between one FD-10 P
(Fieldbus adapter PROFIBUS DP Slave) and one FD-20
(Fieldbus adapter PROFIBUS DP Master).

*PSTN= Public Switch Telephone Network

FD-10 P

PROFIBUS DP

PROFIBUS DP

FD-20

PROFIBUS DP Master

Modem

(e.g PSTN*, Radio)

PROFIBUS DP Master

PROFIBUS DP Slave

Modem

(e.g PSTN*, Radio)

6 6630-2220

Point to point over Ethernet

The continuous transfer of defined PROFIBUS I/O data over Ethernet, between one
FD-10 P (fieldbus adapter PROFIBUS DP Slave) and one FD-20 (Fieldbus adapter
PROFIBUS DP Master).

This application is created by using one FD-10 P (point to point mode) and one
ED-10 UDP (Ethernet adapter) in the main PROIBUS DP network and one ED-10 UDP
and one FD-20 in the remote network.The FD-20 can support a number of
PROFIBUS DP Slaves

FD-10 P

PROFIBUS DP

PROFIBUS DP

FD-20

PROFIBUS DP Master

ED-10 UDP

Ethernet

PROFIBUS DP Master

PROFIBUS DP Slave

ED-10 UDP

Configure ED-10:
Data rate the same as

FD-10 serial port.
Local IP : i.e:10.0.0.11
Remote IP: i.e: 10.0.0.12

Configure ED-10:
Data rate the same as

FD-20 serial.port
Local IP: i.e:10.0.0.12
Remote IP: i.e: 10.0.0.11

Master controlled transfer (Addressed)

The transfer of defined PROFIBUS I/O data between one FD-10 A controlled by a
PROFIBUS DP Master and several FD-20s.The FD-10 acts as serial transfer master
and can transfer I/O data between various addressed FD-20s.This solution is ideal
when a PROFIBUS DP Master needs to connect to two, or more, independent remote
PROFIBUS DP Slaves.A radio system, multi-drop modem or RS-485 bus is typically used
as the connecting medium.The serial data rate is independent of the PROFIBUS DP rate,
so each PROFIBUS DP network could run at different data rates to the serial backbone.

FD-10 A

PROFIBUS DP Slave

PROFIBUS DP Slave

PROFIBUS DP Master

Serial
master

Serial
slave

Serial
slave

PROFIBUS DP

PROFIBUS DP

PROFIBUS DP

FD-20

PROFIBUS DP Master

FD-20

PROFIBUS DP Master

76630-2220

4. Specifications

FD-20

Rated voltage 12 to 48 VDC
Operating voltage 9.6 to 57.6 VDC
Rated current 250 mA @ 12 VDC

120 mA @ 24 VDC

65 mA @ 48 VDC
Rated frequency DC
Polarity Reverse polarity protected
Connection Detachable screw terminal
Connector size 0.2 – 2.5 mm2(AWG 24-12)
Fuse To be externally fused

Power

PROFIBUS DP interface

Electrical specification RS-485 / EN 50 170
Data rate 9 600 bit/s, 19.2, 93.75, 187.5, 500, 1 500, 3 000, 6 000 and

12 000 kbit/s
Connection D-sub (female)
Circuit type TNV-1
Termination External

RS-485 interface

Electrical specification RS-485
Data rate 1 200, 2 400, 4 800, 9 600 bit/s, 14.4, 19.2, 38.4, 57.6

and 115.2 kbit/s
Connection Detachable screw terminal
Connector size 0.2 – 2.5 mm

2

(AWG 24-12)

Circuit type TNV-1

RS-232 interface

Electrical specification RS-232
Data rate 1 200, 2 400, 4 800, 9 600 bit/s, 14.4, 19.2, 38.4, 57.6

och 115.2 kbit/s
Connection D-sub, DTE
Circuit type SELV

8 6630-2220

Environmental

Temperature, operating –25 to 70°C
Temperature, storage

and transportation –25 to 70°C
Relative humidity, operating 5 to 95 % (non-condensing)
Relative humidity, storage

and transportation 5 to 95 % (condensation allowed outside packaging)

Mechanical

Dimension (W x H x D) 55 x 100 x 132 mm (including connectors)

55 x 100 x 128 mm (enclosure)
Weight 0.3 kg
Mounting 35 mm DIN-rail
Degree of protection IP 20 (IEC 529)

Isolation between interfaces

Power to all other 1.0 kV RMS @ 50 Hz and 60 s duration
PROFIBUS DP to all other 1.0 kV RMS @ 50 Hz and 60 s duration

Internal

electronics

Power

PROFIBUS DP

RS-485
RS-232

Only one of RS-232 or
RS-485 can be connected
simultaneoysly

5. Maintenance

No maintenance is required, as long as the unit is used as intended within the specified
conditions.

96630-2220

6, Installation

6.1 Mounting / Removal

Before mounting or removing the unit:

Prevent damage to internal electronics from electrostatic
discharges (ESD) by discharging your body to a grounding
point (e.g. use of wrist strap).

Prevent access to hazardous voltages by disconnecting the
unit from AC/DC mains supply and all other electrical
connections.

Mounting

This unit should be mounted on 35 mm DIN-rail which is horizontally mounted on a wall
or cabinet backplate.

This unit uses convection cooling.To avoid obstructing the airflow around the unit,
use the following spacing rules. Recommended spacing 25 mm (1.0 inch) above/below
and 10 mm (0.4 inches) left/right the unit.

Snap on mounting, see figure

Removal

Press down the black support at the back of the unit
using a screwdriver, see figure.

10 mm *

(0.4 inches)

25 mm

25 mm

* Spacing (left/right) recommended

for full operating temperature range

!

C

I

L

C

!

K

10 6630-2220

6.2 Connections

PROFIBUS DP

Power

RS-232

RS-485

116630-2220

6.2.1 Power

2-pos screw terminal Direction Description

No. 1 In 0 VDC (–)

No. 2 In +12 to +48 VDC (+)

6.2.4 RS-485

2-pos Detachable screw terminal Direction Description

No. 1 In/Out Transmit/Receive T/R+ (T+)

No. 2 In/Out Transmit/Receive T/R– (T–)

6.2.2 PROFIBUS DP

9-pos D-sub Direction Description

No. 1 – –

No. 3 – –

No. 3 In/Out RxD/TxD-P

No. 4 Out CNTR-P

No. 5 – DGND

No. 6 Out VP

No. 7 – –

No. 8 In/Out RxD/TxD-N

No. 9 – DGND

6.2.3 RS-232 (DTE)

9-pos D-sub Direction Description

No. 1 – –

No. 2 In Receive Data (RD)

No. 3 Out Transmit Data (TD)

No. 4 Out Data Terminal Ready (DTR)

No. 5 – Signal ground (SG)

No. 6 – –

No. 7 Out Request To Send (RTS)

No. 8 In Clear To Send (CTS)

No. 9 – –

1

2

1

2

5

4

3

2

1

9

8

7

6

1

2

3

4

5

6

7

8

9

Female

Male

12 6630-2220

6.3 Indicators

6.3.1 LED indicators

PWR On In service (power)

Off Out of service

TD On Transmit serial (RS-232/485) data

Off –

RD On Receive serial (RS-232/485) data

Off –

RUN On Running, PROFIBUS DP and serial (RS-232/485)

transfer in operation. Exchanging data with all slaves.

Flashing (2 Hz) PROFIBUS DP error,

e.g. missed data exchange with a slave

Off –

DIAG On Stat_Diag (static diagnostics) set

Off –

CONF On Configuration mode

Flashing (2 Hz) Missed or invalid configuration

Flashing (once) The received serial (RS-232/485) data length ≠

slaves output data length (as defined by configuration)

Off –

BA On PROFIBUS DP in operation

Flashing (2 Hz) Failed PROFIBUS DP master initiation
Off –

136630-2220

6.4 Configuration

Configuration is divided into two parts:
… Serial transfer configuration, by DIP-switch settings in the FD-20.

… PROFIBUS DP Master configuration, using SyCon

®

a PC based universal system

configurator

6.4.1 DIP switch settings

DIP-switches are accessable under the lid on top of the unit. DIP-switches are
used to configure the unit.

Warning!

Prevent damage to internal electronics from electrostatic discharges (ESD) by
discharging your body to a grounding point (e.g. use of wrist strap), before the
lid on top of the unit is removed.

Warning! Do not open connected equipment.

Prevent access to hazardous voltages by disconnecting the unit from AC/DC
mains supply and all other electrical connections.

!

!

14 6630-2220

S3:1–8 S2:1–8 S1:1–8

Switch 1

ON

12345678

S1

No termination (RS-485)

ON

12345678

S1

Termination with fail-safe
(RS-485)

ON

12345678

S1

Data control

ON

12345678

S1

RTS/CTS control

ON

12345678

S1

RS-232 as serial
transfer port

ON

12345678

S1

RS-485 as serial
transfer port

ON

12345678

S1

2 ms turning time

Factory setting

ON

12345678

S1

No termination (RS-485)
Data control
RS-232 as serial transfer port
No turning time
5 s timeout allowed between received frames
No serial transfer at Stat_Diag (static diagnostics)
Reset slaves output data at running interrupt (RUN-LED off)

ON

12345678

S2

Default transfer setting
9 600 bit/s, 8 data bits,
no parity, 1 stop bit

ON

12345678

S3

Configuration mode, SyCon

®

* When this switch is selected, the slaves output remain at serial transfer interruption. To ensure that

the slaves output remain even at PROFIBUS DP interruption as well as power supply interruption or
restart of FD-20, select this switch together with selecting Controlled release of communication by the
application program in DP Master settings window (accessible from the Master Configuration window)
during the SyCon

®

configuration.

ON

12345678

S1

100 ms turning time

ON

12345678

S1

Timeout, 5 s allowed
between received frames

ON

12345678

S1

Timeout, 40 s allowed
between received frames

ON

12345678

S1

No serial transfer at
Stat_Diag (static diagnostics)

ON

12345678

S1

Serial transfer even
at Stat_Diag
(static diagnostics)

ON

12345678

S1

Stop the data exchange
with slaves at serial
transfer timeout

ON

12345678

S1

Continue the data exchange
with slaves at serial transfer
timeout*

NOTE

DIP-switch alterations are only
effective after a power on.

38.4 kbit/s

156630-2220

Switch 2

ON

12345678

S2

9 600 bit/s, 8 data bits,
no parity, 1 stop bit

ON

12345678

S2

1 200 bit/s

ON

12345678

S2

2 400 bit/s

ON

12345678

S2

4 800 bit/s

ON

12345678

S2

9 600 bit/s

ON

12345678

S2

14.4 kbit/s

ON

12345678

S2

19.2 kbit/s

ON

12345678

S2

57.6 kbit/s

ON

12345678

S2

115.2 kbit/s

Switch 3

ON

12345678

S3

Serial transfer mode,
point to point

ON

12345678

S3

Configuration mode,
SyCon

®

ON

12345678

S3

Serial transfer mode,
addressed with address range
1–254
(binary 1000 0000 – 0111 1111)

E.G.
Addr. 1 = 1000 0000
Addr. 254 = 0111 1111)

ON

12345678

S2

8 data bits, No parity

ON

12345678

S2

8 data bits, Even parity

ON

12345678

S2

8 data bits, Odd parity

ON

12345678

S2

1 stop bit

ON

12345678

S2

2 stop bits

S2:7 används ej

ON

12345678

S2

16 6630-2220

6.4.2 On-line configuration using SyCon®, a universal System

Configurator

This part of the installation guide describes the usage of the SyCon®(universal SYstem
CONfigurator) software to perform an on-line configuration of the PROFIBUS DP
Master within the FD-20. For software installation details and general SyCon

®

operation,

please see the “SyCon

®

Installation manual” on the CD, supplied with the FD-20.

Required items

… PC with installed System Configurator SyCon

®

.
… FD-20 with power supply.
… DTE-DTE RS-232 serial cable (crossover/null modem cable).
… PROFIBUS DP network with connected slaves.

Not necessary, but makes correct configuration easier.

6.4.2.1 Initiate PROFIBUS DP Master Configuration

… Set the FD-20 to configuration mode by setting DIP-switch S1 to S3 to factory default

setting (all positions on S1 and S2 to off and all positions on S3 to on).

… Connect a DTE-DTE RS-232 serial cable (crossover/null modem) to the serial port of

the PC and RS-232 port of the FD-20.
… Power on the FD-20 and wait for the CONF LED to activate.
… Start SyCon

®

on the PC.

6.4.2.1.1 The first run (no saved project), Initiate communication

… Initiate communication with the FD-20 by selecting Online > Start communica-

tion and assign the Communication Interface (CIF) Serial Driver. This serial driver is

used by the FD-20.

Figure 1: CIF driver selection

176630-2220

… Press Connect COM X to establish a connection (X is the PC serial port).

The system configurator sends a request to the corresponding COM port
interface and polls the firmware of the FD-20. Name,Type etc. will indicate
when a device is connected. Select the COM port tick box and press OK.

6.4.2.2 PROFIBUS DP Master configuration using SyCon

®

Below we have described the most essential parts of a FD-20 Master configuration. For
more details, use the SyCon

®

help facilities by selecting Help > Help Topics....

6.4.2.2.1 Create a new configuration

Select File > New, choose PROFIBUS and press OK.The PROFIBUS configuration
window will open after about 10s, a vertical line to the left of the window.

… The name of your configuration file can be assigned now or when the configuration is

completed by selecting File > Save as, choose a project name and store under the
folder Project.

6.4.2.2.2 Open an existing project

Select File > Open, choose project (*.pb) and press Open.

Figure 3: Fieldbus selection

Figure 2: CIF serial driver assignment

Note: The ”Connect COM X” will not be activ if a projekt window allready are open.

18 6630-2220

6.4.2.2.3 GSD file

When SyCon®is started, the System Configurator automatically loads all the GSD files
stored in the GSD directory.The device names are placed into an internal list. During
configuration, device-specific data is loaded directly from the GSD files.

If a DP Slave device does not appear in the selection list, then a corresponding GSD file
must be copied into the GSD directory by:

… Select File > Copy GSD, or
… Copy the GSD file into the SyCon

®

GSD directory with Internet Windows Explorer

and then retrieve the GSD files into the GSD directory with Settings > Path

and OK

6.4.2.2.4 Insert PROFIBUS DP Master

… Click on the symbol in figure 5 or choose the Insert > Master menu and the insert

master pointer will be displayed, a left arrow and letter M.

Click on the position where the Master is to be inserted.The dialog box, from which a
master can be chosen, then opens.
Select CIF30-DPM / CIF104-DPM /-R as the master for the FD-20, by clicking on it in
the list of available masters and then click the Add button to put this master in the

selected masters list. Press OK to confirm the selection.

Figure 4: GSD files and bitmaps location

Figure 5:The insert master button

Figure 6: Master selection dialog box

The insert master pointer

196630-2220

6.4.2.2.6 Insert PROFIBUS DP Slave

… Click on the symbol or choose the Insert > Slave menu to get the Insert slave

pointer, a left arrow and letter S.

… Click on the position where the slave is to be inserted.The dialog box, from which

one or more slaves can be selected, will open.

… Select a Slave by clicking on it in the list Available slaves and then click the Add>>

button to put this slave into the Selected slaves list. Several different slaves can be
selected, as well as the same slave several times. Once you have selected the required
slaves press OK.

6.4.2.2.5 PROFIBUS DP Master configuration

Double click on the master symbol or set the focus on to the master (left mouse click)
and then select Settings > Master Configuration, to open the master configuration
window. The description and the station address can be set in this window.

Set the Auto addressing check box. Note: automatic addressing is recommended for
the DP Master.The addresses are allocated from 0 and incremented in accordance with
the entry sequence of the Slaves before downloading and can be viewed and checked in
the View > Address Table. Click OK

Figure 7: Master configuration

Figure 8:The insert slave button The insert slave pointer

20 6630-2220

The Available slaves list on the left displays all the slave devices whose GSD files have
been loaded into the GSD directory.A filter can be used to limit the selection list to
slave type and vendor (manufacturer).The slave can be added to the right-hand list with a
double mouse click or with the Add button. All devices in the right-hand list are assigned
to the master shown in the window above the list. If the slaves are selected individually,
then each slave can be allocated a Station address as well as a name in the Description
field. For every slave entered in the right-hand list, the station address count is automati­cally incremented by one but can be overwritten by the user in the Station address field.

6.4.2.2.7 PROFIBUS DP Slave configuration

Double click the PROFIBUS DP slave device symbol or click the symbol with the left
mouse button and then choose the Settings > Slave Configuration, to open the
slave configuration window.The slave-specific configuration is carried out in this window.
Here, the modules and their addresses are allocated into the process data memory
of the master.

Note 1: The offset addresses refer to the addressing of the data in the Master!

The address information does not refer to the addressing of the data in
the Slave! The Slave organises its own data addressing.

The selection list (upper list) shows all the possible slave modules. In the case of a simple
slave, one module is shown and this is automatically copied into the configuration list
(lower list). In the case of a modular slave, the user must select the required modules and
transfer these by means of a double click or transfer it using the Append Module
button into the configuration list (lower list).

For configuration of slave modules (selection of modules), proceed as follows:
… Transfer all the required modules from the selection list (upper list) into the

configuration list (lower list) by a double click or using the Append Module button.
Click on OK when configuration of this slave is complete.

Figure 9: Insert slave

216630-2220

Note 2: The sequence of the modules in the configuration list (lower list) is important

and must be identical to the actual slave.Typically, the sequence follows the
actual physical sequence. There are slaves to which this rule does not apply.
For instance analogue modules must be entered before digital modules.

Note 3: The DP slaves utilize the Watchdog Control setting in order to detect

communication errors to the assigned DP Master.When the DP slave detects
a break in an established connection, defined by a watchdog timeout, the slave
carries out an independent reset and puts all the outputs into a secure condi­tion.
Caution:When the Watchdog Control has been deactivated, it is possible
that the outputs are not securely reset by the slave if the connection is lost.

Note 4: Activate Device in actual configuration must be selected. If not, no data

exchange will occur from the bus to this slave.

Figure 10: Slave configuration

22 6630-2220

PROFIBUS DP data rate

PROFIBUS DP data rate can be set in the Settings > Bus Parameters menu.

… After a successful configuration the FD-20 must be powered off and the DIP-switches

set to the desired operational mode, before it is powered on again.

Note 1: Before the download is carried out, the configuration is tested by the

Configurator.The most common cause of error is overlapping of addresses in
the process data image.This will not occur if addresses in the process data
image are assigned automatically, by having the Auto addressing button
checked in the Master Configuration window.

Note 2: The configuration is transferred into the FD-20s PROFIBUS DP Master and

stored in non-volatile memory (FLASH).

Note 3: After the download, the master carries out an internal restart and starts the

communications providing the Automatic Release of Communication by
the Device setting has been made in the DP Master Settings.

6.4.2.3 Load the configuration to the FD-20

… When master and slaves has been inserted, click on the master symbol with the left

mouse.
… In order to release the configuration and network access, a transfer (Load) to the

FD-20 must be carried out on the Online > Download menu.A warning will appear

that communications on the PROFIBUS will be interrupted.This warning must be con-

firmed.

Note: If “Driver select” menu pops up, see “The first initiation (no saved project),

Initiate communication” section.

Figure 11: PROFIBUS DP data rate setting

Figure 12: Configuration download to FD-20

236630-2220

6.4.2.4 Store configuration

… A configuration file can be assigned now or when the configuration is complete by

selecting File > Save as, choose a project name and store in the Project folder.

… If this configuration has not previous been saved with the project file, the File > Save

As menu must be used to store the configuration, else the File > Save menu can be
used.

6.4.2.5 Diagnostics functions

The most important diagnostic functions are described below, for further diagnostic
information use the Help > Help Topics.. menu.

Note: The FD-20 must be in configuration mode to get access to the diagnostics

functions. See “Initiate PROFIBUS DP Master Configuration” section.

6.4.2.5.1 Live list, all devices

Click on the master symbol with the left mouse button.Then select the Online > Live
List menu and obtain an overview of all active devices on the PROFIBUS network.

Figure 13: Live list

A green highlighted number shows a master and blue number a slave, where the number
indicates the station address.The meaning of the other colours is given in the list above
the table.

24 6630-2220

6.4.2.5.2 Debug mode, PROFIBUS DP and Slave diagnostic

Click on the master symbol with the left mouse button.Then select the Online > Start
Debug Mode menu.After starting the debugger SyCon

®

cyclically interrogates the sta­tus of the PROFIBUS DP network and the individual conditions of the attached devices. If
there is an error on a device the bus line to this slave is drawn in red otherwise the line
will be is green.

To end Debug Mode select the menu Online > Stop Debug Mode.

If diagnostic information is available for a specific device while running debug mode, the
text Diag appears in red next to the device icon.To get further device specific diagnostic
information then double click on the device itself or set the focus on the device and
select Online > Device Diagnostic.

To check that the I/O modules are correctly configured, click on Compare
Configuration.The SyCon

®

configuration and the actual configuration (I/O modules)

must be identical.
To get detailed information about the slave diagnostics, see Help > Help Topics..

and search for “PROFIBUS DP Device Diagnostics” under the index.

Figure 14: Debug mode

Figure 15: Slave diagnostic

256630-2220

6.4.2.5.3 Global State Field

Click on the master symbol with the left mouse button.Then select the Online >
Global State Field menu. A display window opens in which the cyclic statuses of the

bus condition and the connected devices are shown.

Figure 16: Global state

The first row shows the main state of the master.This can have the condition
OPERATE or STOP. The next row shows individual bus errors.A current error
is shown in a red field.The meanings of the individual abbreviations are shown below.

TOUT Timeout error, the device has detected an expired supervision timeout caused

by rejected PROFIBUS telegrams.

NRDY Host not ready notification, indicates if the host program has set its state to

operative or not. If this bit is set the host program is not ready to communicate.

EVE Event error, the device has detected bus short circuits.The number of detected

events is stored in the bus statistic information variable.The bit will be set when
the first event is detected and will not be cleared.

FAT Fatal error, because of a serious bus error, no further bus communication is

possible.

NEXC Non exchange error, at least one slave has not reached the data exchange state

and no process data can be exchanged.

26 6630-2220

ACLR Auto clear error, the device stopped communication to all slaves and reached

the auto-clear end state.

CTRL Control error, parameterisation error.

The device specific status bits, Parameterised Devices,Activated Devices and
Devices with Diagnostic are shown if you click on the respective buttons.
The activated addresses are shown as coloured numbers.This application updates
online the status in the global state field.You can see the diagnostics by double clicking
on a highlighted device station address.

PROFIBUS DP

GSD-file HIL_7505.GSD

Device type DP Master (Class 1)

Address range 0 to 125 (Default address=0)

Serial transfer

Transfer type Point to point Addressed

Seriell adress – 1 to 254

Transfer initiation Passive. FD-20 reply after a correct received frame

Transfer check 16 bit CRC

Allowed timeout between Up to 5 or 40 s, set by DIP-switch (S1:6)
correct received frames

Allowed timeout between Up to 100 ms
correct received frames

Turning time 2 or 100 ms, set by DIP-switch (S1:5)

Serial transfer of PROFIBUS DP data

Number of modules Unlimited (depend on remote Fieldbus adapter)

Length of input data Up to 249 bytes

Length of output data Up to 249 bytes

Data location Slaves: In increased address order

Modules: In order as defined by configuration tool

Running, PROFIBUS DP • Correct received frame with correct data length, and
and serial (RS-232/485) • All slaves exchanging PROFIBUS DP data, and
transfer in operation, if: • No Stat_Diag (static diagnostics), or

• Ignored Stat_Diag (static diagnostics), set by DIP-switch
(S1:7)

Serial transfer timeout • Stop the data exchange with slaves

(SW 1:8 set to OFF), or

• Continue the data exchange with slaves
(SW 1:8 set to ON)

276630-2220

7. Functional description

The FD-20 acts as a stand-alone master that can control all PROFIBUS DP traffic with
connected slaves on that bus.The master can be configured, within the limits set by the
serial transfer of the input and output data.The serial link has higher priority than the
PROFIBUS DP network.

If the stop PROFIBUS data exchange on serial transfer timeout (SW 1:8 set to OFF) is
selected, PROFIBUS communication with the slaves is stopped.This eliminates the risk of
a slaves output being lost whilst the link is down.

Alternatively the PROFIBUS DP network can be run whether the serial link is opera­tional or not, by selecting the continue data exchange with slaves at serial transfer time­out (SW 1:8 set to ON).The PROFIBUS DP traffic will be active as long as no failure
occurs on the PROFIBUS DP network.

28 6630-2220

To ensure that the slaves output remain even at PROFIBUS DP interruption as well as
power supply interruption or restart of FD-20, select the continue data exchange with
slaves at serial transfer timeout (SW1:8) together with selecting “Controlled release of
communication by the application program” in DP Master settings window (accessible
from Master Configuration window), during the SyCon

®

configuration

A fully operational PROFIBUS DP network communicating with all slaves (not necessarily
exchanging data) is indicated by an active BA LED. Stat_Diag (static diagnostics) will be
indicated by an active DIAG LED.

As long as the FD-20 is in a run state, the data from the PROFIBUS DP slaves will be
exchanged with a remote fieldbus adapter via the serial transfer line.

Received serial data frames are indicated by the RD LED, even if there are errors.
Transmitted serial data frames are indicated by the TD LED.Transmission will occur after
receiving a correct frame and if the BA and RUN LED are active and the DIAG LED is
inactive, or if Stat_Diag (static diagnostics) is ignored.

7.1 Halt state

The FD-20 is in a halt state if the serial connection with the remote fieldbus adapter has
not been established.The RUN LED will be inactive.

The FD-20 will wait to receive a correct serial frame from a remote fieldbus adapter.
The FD-20 goes into a run state if a correct frame is received and the received data

length complies with the output data length (defined by configuration) and when the FD­20 is exchanging data with all the PROFIBUS DP slaves.

Note: When the FD-20 receives a correct serial frame the PROFIBUS DP network will

be initiated (SW 1:8 set to OFF).The time to start the data exchange with all
slaves will be dependent on the number of slaves, the slave’s complexity and
PROFIBUS DP data rate. If the start time is so long that a new serial frame is
received, this new frame must be correctly received before the FD-20 goes to a
run state. Only the last received frame will be replied.

7.2 Run state

The FD-20 is in a run state if the serial connection with another fieldbus adapter has
been established, data is exchanging via the serial line and this data is exchanging with
all connected PROFIBUS DP slaves.The BA and RUN LEDs will be active.

If an error free serial frame is received, a reply will be sent after the turning time. (S1:5)
The FD-20 will go into a halt state if the time exceeds the allowed timeout since the last

correctly received frame (S1:6).
Note: If the allowed timeout between received frames is exceeded, this is indicated by

an inactive RUN LED and if “Stop the data exchange with slaves at serial transfer
timeout” (SW 1:8 set to OFF) is selected, the data exchange with all slaves is
stopped.

296630-2220

7.3 LED error indication

PWR

Off

On

On

On

On – –

Flashing

(2 Hz)

–––

On –

On

while

receive

frame

Off – – Off

–––––

Flashing

(2 Hz)

Off

On

while

receive

frame

––

Flash

after a

received

frame

–

––––

Flashing

(2 Hz)

–

––––––

TD RD RUN DIAG CONF BA Error / Action(s)

No power supply or internal
failure / Connect power
supply

Failed PROFIBUS DP
initiation / Return product
to manufacturer

PROFIBUS DP error, such as
a bus short circuit or inter­rupt of bus or supply to any
slave /

• Check the bus cables,
supply of the slaves etc.

• Set to configuration mode
and use the SyCon

®

diagnostics functions to
find the error

Incorrect data received, or
PROFIBUS DP error /

• Incorrect serial data setting
or address (if addressed
mode)

• Check bus cables, power
supply of slaves etc.

• Set to configuration mode
and use the SyCon

®

diagnostics functions to
find the error

• No stored configuration

• Configuration exceed max
allowed data length /

New Master configuration
by SyCon

®

The received serial data

length ≠slaves output data

length (defined by configura­tion tool) / Modify remote
fieldbus adapter
configuration, or
Modify FD-20 configuration

No slave found at
PROFIBUS DP initiation.
Check bus cables, power
supply of slaves, etc.

30 6630-2220

PWR

On –

On

while

receive

frame

Off – – On

TD RD RUN DIAG CONF BA Error / Action(s)

PROFIBUS DP operating but
incorrect data received /
Incorrect serial data setting
or address
(if addressed mode)

On – – – On – On

Stat_Diag (static diagnostics)
set by any slave / Set to
configuration mode and use
the SyCon

®

diagnostics func­tions to find slave and diag­nostics.

–––

Flashing

(2 Hz)

Flashing

(2 Hz)

Flashing

(2 Hz)

Flashing

(2 Hz)

T04-0227 • 6630-2220 04.08 Mälartryck AB, Eskilstuna, Sweden

Westermo Teleindustri AB • SE-640 40 Stora Sundby, Sweden

Phone [phone] Fax [phone]

E-mail: [e-mail]

Westermo Web site: www.westermo.com

Westermo Teleindustri AB have distributors in several
countries, contact us for further information.

Westermo Data Communications Ltd
Unit 14 Talisman Business Centre • Duncan Road
Park Gate, Southampton • SO31 7GA
Phone: [phone] • Fax.:[phone]
E-Mail: [e-mail]

Westermo Data Communications GmbH
Goethestraße 67, 68753 Waghäusel
Tel.: [phone] • Fax.:[phone]
E-Mail: [e-mail]

Westermo Data Communications S.A.R.L.
9 Chemin de Chilly 91160 CHAMPLAN
Tél : [phone] • Fax : [phone]
E-mail : [e-mail]

Subsidiaries

Application example

PSTN/GSM/Ethernet/leased line/

dedicated line

Serial data
Data rate
up to 115.2 kbit/s

Serial data
Data rate
up to 38.4 kbit/s

FD-20
PROFIBUS DP Master

PROFIBUS DP Slave

PROFIBUS DP Slave

PROFIBUS DP Slave

PROFIBUS DP Slave

PROFIBUS DP Slave

PROFIBUS DP Slave

PROFIBUS DP Master

FD-10
PROFIBUS DP Slave