Baumer GK473 User manual

Baumer IVO GmbH & Co. KG
Dauchinger Strasse 58-62
DE-78056 Villingen-Schwenningen
Phone [phone]
Fax [phone].11 · 174.02.042/4
[email protected] Subject to technical and design modifications.
www.baumer.com Errors and omissions excepted.
Manual
GK473 - Gateway RS485 – Profibus-DP
Version 1.00 and up
Applicable for:
Spindle position display N 140 / N 141 / N 142 / N 143 / N 150 / N 152 / N 153 / N 155

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Contents
Page
1. Introduction 3
1.1. Scope of delivery 3
1.2. Product assignment 3
2. Overview 3
3. Safety precautions and operating information 4
4. Commissioning 5
4.1. Scope of delivery 5
4.2. Mechanical Mounting 5
4.3. Electrical connection 5
4.3.1. Electrical commissioning 5
4.3.2. Supply voltage connection 5
4.3.3. Shield connection / functional earth 5
4.3.4. Profibus - RS485 bus connection 6
4.4. Device parameters 7
4.4.1. How to open the housing (partial pull-out) 7
4.4.2. Setting the Profibus user address 7
4.4.3. Setting the Profibus bus termination 7
4.4.4. Gateway projecting in Profibus project 8
5. Profibus-DP interface description 9
5.1. General information 9
5.2. Data transfer structure 9
5.3. Transparent gateway function 10
5.3.1. General information 10
5.3.2. Broadcast commands 10
5.3.3. Interface documentation 10
5.4. Automatic gateway functions 10
5.4.1. Automatic SPA recognition 10
5.4.2. Continuous scanning of all connected SPAs 11
5.5. Profibus-specific commands 11
5.5.1. Batched information „SPAs connected“ 11
5.5.2. Batched information „Check Position“ 12
5.5.3. Batched information „Device Status“ 12
5.5.4. Automatic SPA scanning ON or OFF 13
5.5.5. Readout gateway version or serial number 13
5.6. Error signals (data exchange) 13
5.7. Error and warning signals (diagnostic data) 14
5.8. Front panel display elements (LEDs) 15
6. Technical Data 16

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Disclaimer of liability
The present manual was compiled with utmost care, errors and omissions reserved. For this reason
Baumer IVO GmbH & Co. KG rejects any liability for the information compiled in the present manual.
Baumer IVO nor the author will accept any liability for direct or indirect damages resulting from the use of the
present information.
At any time we should be pleased receiving your comments and proposals for further improvement of the
present document.
1. Introduction
1.1. Scope of delivery
Please check the delivery upon completeness prior to commissioning.
Depending on encoder configuration and part number delivery is including:
•Encoder
•CD with describing file and manual (also available as download in the Internet)
1.2. Product assignment
Product GSD-File Product family
GK473.0073PDx GK4_059B.gsd multicon
2. Overview
GK473 gateway (interface transformer) is connecting the spindle position displays (SPAs) of the Baumer
IVO multicon system (for example: N 140 / N 142 / N 150) to a Profibus-DP-capable PLC. The gateway is
transforming the data blocks of the SPA’s RS485 interface into Profibus DP protocol (or vice-versa).
Some gateway functions simplify considerably programming the PLC.
The gateway allows connection of max. 32 SPAs to Profibus DP and can be used for all multicon SPAs
(spindle position displays).
In addition, it is possible to use several gateways with the Profibus in order to connect more SPAs.

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3. Safety precautions and operating information
Supplementary information
•This manual is intended as a supplement to already existing documentation (catalogues, product
information and mounting instructions).
•It is imperative to read the manual prior to initial commissioning of the equipment.
Intended purpose
•The gateway is an interface transformer for RS485 serial interface and Profibus DP. It comprises specific
modifications for the IVO multicon spindle positioning system.
•The gateway may only be used for this purpose.
Commissioning
•The gateway may only be installed and mounted by qualified experts.
•Observe the operating instructions of the machine manufacturer.
Safety remarks
•Prior to commissioning of the equipment, check all electrical connections.
•If installation, e-connection or any other work performed at the gateway and at the equipment is not
carried out correctly this can result in malfunction or failure of the gateway.
•Steps must be taken to exclude any risk of personal injury, damage to the plant or to the operating
equipment as a result of gateway failure or malfunction by providing corresponding safety precautions.
•The gateway must not be operated beyond the limit values specified in the product information.
Failure to comply with the safety remarks can result in malfunctions, personal injury or damage of property.
Transport and storage
•Transport and storage in the original packaging only.
•Never drop the gateway or expose it to major shocks.
Mounting
•Avoid impacts or shocks on the housing.
Disposal
•Gateway components are to be disposed of according to the legal regulations prevailing in the respective
country.

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4. Commissioning
4.1. Scope of delivery
•Gateway
•Two screw terminals
•Strain relief/shield connection terminal
•Data carrier with GSD file
•Manual
4.2. Mechanical Mounting
The gateway features a small housing for DIN rail mounting. It can easily be opened by screwdriver and
pulled out partially in order to set the bus node ID and bus termination.
•Width of pattern 22.5 mm, height approx. 100 mm and depth approx. 110 mm
•For mounting onto 35 mm DIN rails
For mounting onto the DIN rail, the gateway is inserted from rear into the DIN rail and then pressed
down to lock.
4.3. Electrical connection
4.3.1. Electrical commissioning
•Do not carry out any electrical modifications at the gateway.
•Ensure that the entire equipment is installed in line with EMC requirements. Ambient installation and
wiring affect the electromagnetic compatibility of the gateway. Install gateway and supply cables in
separate rooms or far away from cables with high interference emission (frequency converters,
protections, etc.
•Provide a separate supply voltage for the gateway where working with consumers with high interference
emission.
•Connect the gateway to protective earth (PE) conductor using shielded cable. The braided shield must
be connected to cable gland or plug. Ideally, aim at a bilateral connection to protective earth (PE), i.e.
housing via mechanical assembly and cable shield via downstream devices. In case of earth loop
problems, earth on one side only as a minimum requirement.
Failure to observe these instructions may result in malfunctions, material damage or personal injury.
4.3.2. Supply voltage connection
Supply voltage connection for gateway and SPA by pin 5 (GNDB) and 6 (UB) or by pin 7 (GNDB) and
8 (UB). Pin 5 and 7 as well as 6 and 8 are internally connected with each other for looping the
operating voltage down to other consumers (for example to SPA).
UB: 12...24 VDC, ripple less than 5 %, 200 mA.
In addition, each spindle position display (without motive drive) is consuming approx. 30 mA. For
specific data of the SPA power consumption please refer to the respective data sheet.
4.3.3. Shield connection / functional earth
Connection of protective earth to pin 1 which is at the same time serving for connecting the RS485
bus shield. There is a connection between pin 1 and the housing of the 9-pin D-Sub connector
(Profibus). The PE (protective earth) connection is additionally carried out by the DIN rail mounting.
For this intention the DIN rail has to be connected to functional earth by low-impedance.

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4.3.4. Profibus - RS485 bus connection
Profibus
CAN Bus connection is provided by 9-
pin D-SUB connector (female) that is
integrated in the front panel.
Connector-housing: shield / functional
earth.
Any requested Profibus looping can be
proceeded in the attachment connector
itself (not included in the
delivery).Corresponding connectors are
available in specialized shops. It is
imperative to avoid stub lines in cabling
but to proceed any Profibus loops
directly at the device itself.
PIN Function
1 Shield/functional earth
2
3 Profibus B (+)
4
5
6
7
8 Profibus A (-)
9
RS485 Bus
RS485 Bus connection and power
supply is provided by 2 x 4-pin screw
terminal connectors
UB:12..24 VDC, ripple 5%, 40 mA
Supplementary consumption of each
spindle position display (with no
motive drive): approx. 30 mA.
It is possible to connect up to 32
multicon SPAs to the RS485 bus in
any combination.
The bus terminator is firmly installed
in the gateway. That’s why the
gateway always has to be at one of
the two ends of an RS485 string. The
respectively remaining end has to
provide a bus terminating connector
at the final SPA.
Pin Funktion
1 Protective earth
2 Signal-GND
3 Rx/Tx +
4 Rx/Tx –
5 GNDB
6 UB
7 GNDB
8 UB

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4.4. Device parameters
4.4.1. How to open the housing (partial pull-out)
Setting the user address requires partial opening of the gateway housing. Please use a small screw-
driver, press-in the snap-locks provided at the top and bottom behind the screw terminals and pull out
the housing halfway until stop so that the operating elements are accessible. The housing is closed
again by pulling it back to its original position until both locks snap in again.
4.4.2. Setting the Profibus user address
The Profibus-user address is set decimally within the range from 00 to 99 using two BCD rotary switches. Please
consider that the lower addresses are often reserved to the Profibus master, reason why an address of 0, 1 or is
not recommended. Default setting is 00.
The illustration shows the address switch in position „42“, the decimal digit at the left, the unit digit at
the right.
4.4.3. Setting the Profibus bus termination
The gateway provides a two-pole DIP switch for bus termination. Both switches have always to be
pushed together. The bus terminator will be active if both DIP switches are in „ON“ position. Default
setting is OFF.

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A bus termination is imperative as soon as the connected gateway is the final user in a Profibus
segment. Make sure that only the first and the last user in the Profibus segment provide a bus
termination.
The bus termination in the arriving D-Sub connector must not be used since it is not actively
terminating the Bus to 0 V and + 5 V.
4.4.4. Gateway projecting in Profibus project
For gateway projecting in the Profibus project there is a GSD file attached that first is to be imported
into the projecting software. Proceed as usual with all other DP slaves and place the bus Node ID set
in the gateway.
For parameterization you have the following options:
Auto Scan SPA
Default: ON
During operation the gateway is automatically and continuously scanning all SPAs connected,
checking whether they are „in position“. If required, this information can be compiled by special
command for read in by Profibus. AutoScan spares the DP master cyclic polling of each SPA itself.
However, there are situations where this feature is not welcome. In this case please refer to the
gateway command “SPA AutoScan ON or OFF“ that has an impact on this function also during
operation.
Auto message SPA position
Default: OFF
If active, in the following situations the gateway will automatically transmit a message without prior
DP master request.
•After all SPAs having been „in position“ before, now at least one SPA is no longer. If further
SPAs are no more „in position“ either, no supplementary message will be transmitted. A
message is also transmitted upon one SPA signalising “error” status.
•After at least one SPA having been not „in position“ before, now all are „in position“ again.
This option is only available with Auto Scan SPA =ON. The message transmitted is identical to the
response on the command „Batched information Check Position“ of block number 20h.
Auto message SPA error
Default: OFF
If active, in the following situations the gateway will automatically transmit a message without prior
DP master request.
•After all SPAs having transmitted „no error“ („in position“ or „not in position), now at least one
SPA is in „error“ status. If further SPAs join, no supplementary message will be transmitted.
•After at least one SPA having been in „error“ status, now all SPAs are „in position“ or „not in
position“.
This option is only available with Auto Scan SPA =ON. The message transmitted is identical to the
response on the command “Batched information Device Status” of block number 20h.

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5. Profibus-DP interface description
5.1. General information
The gateway provides the connection between the SPA’s RS 485 protocol and the Profibus-DP.
The Profibus-DP interface is in line with Profibus standard DP-V0 (cyclic communication) according
DIN EN 50170. Possible transmission rates are 9600, 19200, 93,75k, 187,5k, 500k, 1.5M, 3M, 6M and
12M Baud. The baud rate applied is recognised and set automatically.
Since there are no existing standards for gateway profiles they are manufacturer-specific.
5.2. Data transfer structure
The PLC output data to the gateway contain the complete command for the addressed SPA. The
command is added by tokens for start and stop as well as by the CRC check sum and passed by the
gateway via RS485. In the Profibus line the gateway has a firm length of 16 byte I/O data.
In direction vice-versa, the tokens for start and stop as well as the CRC check sum are removed from
the RS485 message, but latter is passed with unchanged content to the data block of a Profibus
message so that it is available at the PLC as consistent input data.
Furthermore, the gateway provides additional functions to relieve the upstream PLC and its program
editing.
To identify new RS485 telegrams, the Profibus telegram comprises an additional count byte that is
altered or better incremented with each new RS485 telegram.
Contrary to the RS485 protocol of the SPA, the Profibus data block has a firmly defined length of 16
byte. Basically it is consistently transferred in both directions and also has to be evaluated this way by
the PLC. Consistency means in this case that all bytes belong together and must not be separated.
The example below is showing how a „check position“ command is transformed from Profibus into
RS485 as well as the transformation of the RS485 response into Profibus.
The gateway is receiving the following, consistent data block from the PLC. The first 00h is serving as
footer token marking the end of the command so that its length can be recognised by the gateway. The
count byte zz was incremented in the PLC to activate reception in the gateway.
Zhl Adr Cmd data
transmit zz 27h 43h 00h 00h 00h 00h 00h 00h 00h 00h 00h 00h 00h 00h 00h
Now the SPA (address 7 = 27h) is getting the following command by the gateway:
SOH Adr Cmd EOT CRC
transmit 01h 27h 43h 04h 16h
In the SPA profile number 5 is active, the SPA is „in position“ (token „o“) SPA replies to gateway by
SOH Adr Cmd Stat. Profil-Nr=05 EOT CRC
response 01h 27h 43h 6Fh 30h 35h 04h 45h
The gateway transforms the response into the following consistent data block. The count byte is
incremented to release reception in the PLC.
Zhl Adr Cmd data
response zz 27h 43h 6Fh 30h 35h 00h 00h 00h 00h 00h 00h 00h 00h 00h 00h

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5.3. Transparent gateway function
5.3.1. General information
Basically all commands with code „A“ ... „z“ are transparently transmitted by Profibus to the SPAs and
vice-versa, allowing addressing each SPA individually or altogether by PLC broadcast command. The
gateway does not check whether an SPA is connected by the registered address, neither the code of
the command.
The gateway will only accept commands with code „@“ for local processing without SPA commitment,
the response is transmitted immediately to the Profibus master by Profibus.
Basically the gateway is responding to every command received from DP-Master (PLC).
The DP-Master always has to wait for the response prior to sending another command to the gateway.
This enables the DP Master to always recognise when a command is successfully accomplished.
The response will be
•by passing transparently the SPA response if an individual SPA was addressed and is duly
replying.
•by error signal if the SPA does not reply after having elapsed the timeout (approx. 100 ms)
•by confirmatory response after having transmitted a broadcast command (to address 99,
83h) to all SPAs.
Any timeout in the DP master for monitoring the gateway replies should not be less than 400 ms.
5.3.2. Broadcast commands
Due to the bus conflict, SPAs are generally not in a position to reply via RS485 interface to broadcast
commands, i.e. to commands addressed to all SPAs at the same time (address 99, 83h). Therefore, on
behalf of the SPA the gateway will transmit a response to the DP master in the format described
below. The response is only repeating broadcast address (99) and command code. It is only to confirm
that the broadcast command was transmitted by RS485 interface to all SPA. It is NOT confirming any
acceptance or accomplishment at the end of the SPA.
Example: Broadcast command „i“ is programming all SPA to „mm“ as measuring unit.
Zhl Adr Cmd data
transmit zz 83h 69h 30h 00h 00h 00h 00h 00h 00h 00h 00h 00h 00h 00h 00h
Zhl Adr Cmd data
response zz 83h 69h 00h 00h 00h 00h 00h 00h 00h 00h 00h 00h 00h 00h 00h
5.3.3. Interface documentation
The respective SPA’s interface description(s) is giving complete information on the SPA interface. The
interface description is indispensable for editing a gateway application.
5.4. Automatic gateway functions
5.4.1. Automatic SPA recognition
After switch on the gateway will automatically scan all SPA addresses. Each address found is stored in the internal memory.
Later, the addresses of all SPAs connected may be compiled by special command for read-in by Profibus.
This function takes for granted that all SPA are already “ON” or at least being switched on together
with the gateway. A reliable information on all SPA connected is available at the beginning of the
Profibus communication.

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5.4.2. Continuous scanning of all connected SPAs
During operation the gateway is automatically scanning all SPA connected, checking whether they are
„in position“ or in error status. If requested, this information may be compiled by special command for
read-in by Profibus.
This function is optional in projecting (GSD file) and can even later be switched on or off by
supplementary command.
5.5. Profibus-specific commands
There is a class of its own regarding commands for direct communication with the gateway without any
SPA commitment. All of these commands provide the „@“ code followed by a sub-code defining the
function in detail.
The total length of command and response is always 16, due to the constant Profibus transmission
length.
The “address” (Adr.) parameter is only for keeping the standard command structure, the value is
always 20h. Any bytes not used at the end of a message have always to be = 00h. They serve to
Profibus master and gateway for identification of the message length.
Significance of abbreviations applied. All numbers provide the offset of 20h.
Zhl count byte (value zz)
Adr SPA device address including offset 20h
Cmd command (command code)
SCmd sub command (sub command code)
BNr block number including offset 20h
Anz number of SPA including offset 20h
Daten data transmitted or received
Rsvd reserved byte
5.5.1. Batched information „SPAs connected“
The batched information „SPAs connected“ (command @-A) provides the total number of SPA’s
connected to the gateway together with the corresponding address information in bunches of 10. First
the Profibus Master should give the command with block number 0 (20h). In case of more than 10
SPAs being connected, the Profibus Master will scan the following SPAs in groups of 10 by further
command (block number 1..3 (21..23h).The addresses are in ascending order and may vary in the
range from 20h ..83h. The “Anz” parameter is always indicating the total number of all SPAs
connected.
Example: There are three SPAs (Adr. 25h, 26h and 27h) connected to the gateway
Zhl Adr Cmd Scmd BNr data
transmit zz 20h 40h 41h 20h 00h 00h 00h 00h 00h 00h 00h 00h 00h 00h 00h
Zhl Adr Cmd Scmd BNr Anz data
response zz 20h 40h 41h 20h 23h 25h 26h 27h 20h 20h 20h 20h 20h 20h 20h

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5.5.2. Batched information „Check Position“
The batched information „Check Position“ (command @-C) provides by the „Anz“ parameter the total
number of SPAs being „not in position“. The data field comprises the addresses of 10 SPAs each
being “not in position”. First the Profibus Master should give the command with block number 20h. This
will already be sufficient as basic information whether all SPAs are in position. In case of more than 10
SPAs being not in position and it is of interest which ones, the Profibus-Master is able to check the
remaining SPAs connected in groups of 10 by further commands (block number 21..23h). The
addresses are in ascending order and may vary within the value range from 20h..83h. The „Anz“
parameter is always indicating the total number of SPAs being „not in position“.
Example: All SPAs are in position.
Zhl Adr Cmd Scmd BNr data
transmit zz 20h 40h 43h 20h 00h 00h 00h 00h 00h 00h 00h 00h 00h 00h 00h
Zhl Adr Cmd Scmd BNr Anz data
response zz 20h 40h 43h 20h 20h 20h 20h 20h 20h 20h 20h 20h 20h 20h 20h
Example: 15 SPAs are not in position (SPA Adr 40h, 41h,42h, ..., 4Eh)
Zhl Adr Cmd Scmd BNr data
transmit zz 20h 40h 43h 20h 00h 00h 00h 00h 00h 00h 00h 00h 00h 00h 00h
Zhl Adr Cmd Scmd BNr Anz data
response zz 20h 40h 43h 20h 2Fh 40h 41h 42h 43h 44h 45h 46h 47h 48h 49h
5.5.3. Batched information „Device Status“
The batched information „device status“ (command @-F) provides by the „Anz“ parameter the total
number of SPAs indicating an error status. The data field comprises the addresses of 10 SPAs each
indicating an error status. First the Profibus Master should give the command of block number 20h.
This will already be sufficient for the basic information whether all SPAs are error-free. In case of more
than 10 SPAs indicating an error status the Profibus Master is able to scan the remaining SPAs in
bunches of 10 by further commands (block number 21…23h. The addresses are in ascending order
and may vary within the range from 20h .. 83 h. The “anz” parameter is always indicating the total
number of SPAs being in error status.
Example 1: All SPAs remain without error signal.
Zhl Adr Cmd Scmd BNr data
transmit zz 20h 40h 46h 20h 00h 00h 00h 00h 00h 00h 00h 00h 00h 00h 00h
Zhl Adr Cmd Scmd BNr Anz data
response zz 20h 40h 46h 20h 20h 20h 20h 20h 20h 20h 20h 20h 20h 20h 20h
Example 2: Two SPAs have signalized error status (SPA Adr 46h, 49h)
Zhl Adr Cmd Scmd BNr data
transmit zz 20h 40h 46h 20h 00h 00h 00h 00h 00h 00h 00h 00h 00h 00h 00h
Zhl Adr Cmd Scmd BNr Anz data
response zz 20h 40h 46h 20h 22h 46h 49h 20h 20h 20h 20h 20h 20h 20h 20h

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5.5.4. Automatic SPA scanning ON or OFF
The command (@-Z) is for switching on and off the automatic scanning of all SPAs connected.
The preset parameters are overwritten (but not altered permanently).
Data = 0 (30h) = scan OFF
Data = 1 (31h) = scan ON
Several commands to the SPA are only valid until another command is being received (for example
display SPA address in the bottom line of the display). Any automatic scan would turn these
commands void. Furthermore, any long-distance scan is occupying the RS485 bus line so that scan
OFF enables the gateway to handle any Profibus commands much more rapidly.
Example : Scan OFF.
Zhl Adr Cmd Scmd data
transmit zz 20h 40h 5Ah 30h 00h 00h 00h 00h 00h 00h 00h 00h 00h 00h 00h
Zhl Adr Cmd Scmd data
response zz 20h 40h 5Ah 30h 00h 00h 00h 00h 00h 00h 00h 00h 00h 00h 00h
5.5.5. Readout gateway version or serial number
The command @-X is for reading out the firmware version or serial number of the gateway.
To make a difference, a sub-command „V“ or „S“ is added.
The version number is transmitted in four digits. The digital digit of the main release will be depicted as
a blank, if zero.
Example: V 1.23 = 20h 31h 32h 33h
Example: V 12.34 = 31h 32h 33h 34h
At present the serial number is not yet supported, it is always 00000000.
The total length of command and response is always 16 due to the consistent Profibus transmission
length.
The „address“ parameter (Adr) is only serving for keeping the standard command structure, the value
is always 20h.
Example 1: Read out version number (V 1.00)
Zhl Adr Cmd Scmd „V“ data
transmit zz 20h 40h 58h 56h 00h 00h 00h 00h 00h 00h 00h 00h 00h 00h 00h
Zhl Adr Cmd Scmd „V“ data
response zz 20h 40h 58h 56h 20h 31h 30h 30h 00h 00h 00h 00h 00h 00h 00h
Example 2: Read out serial number
Zhl Adr Cmd Scmd „S“ data
Senden zz 20h 40h 58h 53h 00h 00h 00h 00h 00h 00h 00h 00h 00h 00h 00h
Zhl Adr Cmd Scmd „S“ data
response zz 20h 40h 58h 53h 30h 30h 30h 30h 30h 30h 30h 30h 00h 00h 00h
5.6. Error signals (data exchange)
Messages relating to SPA communication are handled within the standard data exchange procedure.
There is a difference between SPA messages and gateway messages.
•A SPA indicates an error after a transparently passed command. Regarding the respective
message please refer to the corresponding SPA interface description. Both messages „format
error“ and CRC error“ are possible.

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•The gateway itself will indicate error if the error is due to a gateway command (code „@“).
Furthermore, the gateway will also indicate error if the error status results from any automatic
function (for example cyclic SPA scanning).
The gateway error messages comprise dummy address 20h, command „@“ (40h), sub-command „e“
(65h) as well as the error number. The message is of the following format:
Zhl Adr Cmd Scmd „S“ data
message zz 20h 40h 65h 53h 30h 30h 30h 30h 30h 30h 30h 30h 00h 00h 00h
To maintain the figure description usual in RS485 communication, all error numbers provide an offset
of 20h.
error number- error occurred
20h no error
21h void sign in protocol
22h SPA indicates repeatedly CRC error
23h data value beyond the permitted range
24h number of commands/data beyond the permitted
range
25h timeout during waiting for SPA response, with
transparent commands only
26h unknown gateway command (@xxx)
27h...2Fh reserved
5.7. Error and warning signals (diagnostic data)
Diagnostic data are only for transmission of messages indicating any gateway error status that might
endanger Profibus operation.
Messages relating to SPA communication are processed by the standard data exchange (see error
messages data exchange). Only exception is indication of a lost SPA (error 20h) which does not react
anymore even after having tried three times.
Diagnostic data are of 11 byte in length. The first 6 byte are used for standard diagnostic data for
automatic evaluation by PLC, the remaining 5 byte for external gateway diagnosis. The last byte
contains the gateway error information.
diagnostic byte type
1 standard standard diagnostic byte 1
2 standard standard diagnostic byte 2
3 standard standard diagnostic byte 3
4 standard Master address after parameterizing (previously FFh)
5 standard Ident-number high byte
6 standard Ident-number low byte
7 external information on length of external diagnosis (05h)
8 external reserved, always 00h
9 external reserved, always 00h
10 external reserved, always 00h
11 external error number, -see chart below
error number errors occured
00h no error
01h selftest: program memory error (flash)
02h selftest: ERM error
03h selftest: ROM error (EEprom)
21h loss of SPA connected
80h..8Fh internal error

Manual_GK473_Profibus_EN.doc 15/16 Baumer IVO GmbH & Co. KG
04.05.11 Villingen-Schwenningen, Germany
Errors in configuration and parameterizing should not occur when the attached GSD file is applied.
Both errors are transferred as single bit by standard diagnostic data and therefore do not require a
specific error code in external data.
In case of configuration error, bit „diag.cfg.fault“ is set in diagnostic byte 1.
In case of parameterizing error, bit „diag.prm_fault is set in diagnostic byte 1.
For any proceedings regarding error status evaluation and treatment please refer to the relevant
Profibus Master documentation.
5.8. Front panel display elements (LEDs)
The gateway’s front panel provides four LEDs to indicate the RS485 and Profibus-DP operating status.
•DP (red) indicates Profibus-DP operating and error status.
- together with green LED: Gateway is awaiting configuration and parameterization
(Profibus status WAIT_PRM)
- sole, red continuous: Profibus alarm
- sole, red flashing quickly (5 Hz): configuration error
- sole, red flashing slowly (1 Hz): parameterization error
•DP (green) indicates Profibus-DP operating status.
- together with red LED: Gateway is awaiting configuration and parameterization
(Profibus -status WAIT_PRM)
- sole, green continuous: active cyclic data transfer with DP-Master
(Profibus status DATA_EXCHANGE)
•TX (yellow) transmission of a token by RS485 interface
•RX (yellow) reception of a token by RS 485 interface

Manual_GK473_Profibus_EN.doc 16/16 Baumer IVO GmbH & Co. KG
04.05.11 Villingen-Schwenningen, Germany
6. Technical Data
Technical data – electrical ratings
Supply voltage 12...24 VDC
Current consumption ≤200 mA
Display 4 LED´s as operating status indicators
LED operating status DP (green) fieldbus operating status
DP (red) operating and error status
RX / TX (yellow) receiving / transmitting a token (RS485)
Interfaces CANopen, DeviceNet, Profibus-DPV0
Interface to SPA EIA RS485 (ASCII protocol)
Data memory >10 years (flash / EEPROM)
Programmable Auto-Check functions
parameters Auto Scan SPA
Auto Message SPA Position
Auto Message SPA Error
Emitted interference DIN EN 61000-6-4
Interference immunity DIN EN 61000-6-2
Technical data – mechanical design
Operating temperature -10...+50 °C
Storing temperature -20...+70 °C
Relative humidity 80 % non-condensing
Protection DIN EN 60529 IP 20
E-connection D-SUB-female connector, 9-pins
Plug-in screw terminals
Housing type DIN rail housing EN 50022
Dimensions W x H x L 22.6 x 99 x 114.5 mm
Mounting DIN rail housing EN 50022
Weight approx. 120 g
Material Polyamide green, UL 94V-0