If there are several network adapters in the PC the corresponding adapter to be tested has to be selected here.

Here the suitable protocol ( e.g. TCP/IP ) for the test must be selected.

The name of the PC declared during the network installation is displayed here. It can be set via the network settings in the Windows system control. ( No input is possible, it is only a display field ! )

The IP-address allocated to the network adapter is displayed here. It can be set via the network settings in the Windows system control. ( No input is possible, it is only a display field ! )

If no IP address is displayed when opening the register card, the network is not correctly installed in Windows or the connection to the network hub or switch does not exist.

When LIAN 98 is used as client ( RTI simulation ) the port number = 0 must be entered. During the establishment of the client connection a free port address will be allocated to LIAN 98 automatically.
When LIAN 98 is used as server ( RTU simulation ) the port number = 2404 must be set.

When LIAN 98 is used as client ( master simulation ) the port number of the station to be tested must be entered. Normally it is the port number =2404.
When LIAN 98 is used as server ( slave simulation ) the port number is not relevant.

Recommendation : 200 msec
LIAN 98 waits this time until it will continue processing all network packets received in this time.

2 bytes ( fixed ), structured or unstructured can be selected.

dec / hex

The display of the ASDU address in the screen output is done corresponding to the setting of the display format decimal or hexadecimal.

The 16 bit ASDU address can be divided in maximum 4 bit-fields. In the default division the address is byte by byte structured ( 8 + 8 ). But also any other values can be set ( e. g. 2 + 6 + 8 ). The entry begins always from the higher bit and the sum of all bits must be of course 16.

3 bytes ( fixed ), structured or unstructured can be selected.

dec / hex

The display of the object address in the screen output is done corresponding to the setting of the display format decimal or hexadecimal.

The 24 bit object address can be divided in maximum 6 bit-fields. In the default division the address is byte by byte structured ( 8 + 8 + 8 ). But also any other values can be set ( e. g. 2 + 6 + 4 + 4 + 8 ). The entry begins always from the higher bit and the sum of all bits must be of course 24.

It is the ASDU address of the server with which one will test mostly. All telegrams to be sent are provided with this ASDU address out of the SIM list and sent to the corresponding server.

Exception :
. If a TDB buffer contains a "BROADCAST command" with the ASDU address = 65535 ( 2 octet address ) the telegram will be sent unchanged to all servers entered in the server list.
. If a valid ASDU address out of the server list is already set in the TDB buffer the telegram will be sent with the entered address to the server with the allocated address.

This is the IP address of the default server with which one will test mostly.

All telegrams to be sent will be provided with this originator address during the master simulation.

[ sec ] Network connection establishment timeout
Timeout for the establishment of the connection with the server.

[ sec ] Response timeout
This parameter defines the time in seconds that LIAN 98 waits maximum for an acknowledge from the server.

[ sec ]
A S-format frame ( ACKRSN ) will be sent at the latest after this time starting from the last received telegram from the server.

[ sec ]
An U-format frame ( TESTFR ) will be sent at the latest after this time starting from the last received telegram from the server.

Maximum difference ( k ) between the received sequence number ( RSN ) and the last acknowledged RSN. The transmitter stops the transmission at k unacknowledged I frames.

This parameter ( w ) indicates the number of received I frames after the RSN will be acknowledged at latest from LIAN 98 with a S frame ( A C K R S N ).

yes / no

LIAN 98 will transmit a S-format frame ( A C K R S N ) to the server when this parameter is activated. Otherwise the RSN will not be acknowledged. Furthermore the number of the TDB  buffer has to be entered in which the telegram is stored.

yes / no

LIAN 98 will transmit first of all a time synchronization command ( ID 103 ) and repeat cyclic if necessary ( Time-Sync-cycle ).

1 - 1440 minutes

Dependent on this time LIAN 98 as master station will repeatedly send the time synchronization command.

TDB buffer number where the telegram "C_CS_NA_1" ( ID 103, COT 6 ) is stored.

yes / no

The system time of the PC will be taken over into the time synchronization command ( ID 103 ) and the commands ( ID 58 - 64 ) before the telegram will be transmitted, if this parameter is activated. Otherwise the telegram remains unchanged as before edited by the user.

yes / no

After the initialization of the communication LIAN 98 will transmit a general interrogation command and repeat it cyclic ( GI cycle time ) if necessary.

1 - 1440 minutes

Dependent on this time LIAN 98 as master station will transmit the general interrogation command repeatedly.

TDB buffer number where the message "C_IC_NA_1" ( ID 100, COT 6 ) is stored

Multi-Server operation :
All servers ( max. 32 stations ) to be processed by LIAN 98 must be inserted in the server list. LIAN 98 will make a connection to all this servers during the master simulation.

In order to insert the addresses please proceed as follows :

Activate "Insert scan addresses" ( button "insert" will be displayed ).
Insert in the fields "Link address" / "Address of ASDU" the station to be entered in the scan list.
Take over the addresses into the scan list by clicking "insert".
When all stations are inserted, please deactivate "insert scan addresses" ( button "insert" disappears ).

In order to delete a station out of this list select it and click "delete".

yes / no

LIAN 98 will transmit an U-format frame ( STARTDT ) to the server(s) after the establishment of the connection when this parameter is activated. Furthermore the number of the TDBbuffer has to be entered in which the telegram is stored.

yes / no

LIAN 98 will transmit an U-format frame ( STOPPDT ) to the server(s) before of the connection will be closed when this parameter is activated. Furthermore the number of the TDB buffer has to be entered in which the telegram is stored.

yes / no

LIAN 98 will transmit an U-format frame "TESTFR" ( see t3 - Used for sending test frames ) to the server(s) when this parameter is activated. Furthermore the number of the TDB buffer has to be entered in which the telegram is stored.

yes / no

LIAN 98 will acknowledge a "TESTFR activate" received from the server with an U-format frame ( TESTFR confirm ).

yes / no

LIAN 98 will send automatically an Acitivate Execute Command ( COT 6, execute ) after the receipt of an ACTCON Respond ( COT 7, select ) during master simulation if this parameter is activated. 

This parameter defines the time in seconds that LIAN 98 at most has to wait for an ACTCON Respond ( COT 7 ) or. DEACTCON Respond ( COT 9 ) before the message "*E: ACTCON missing !" is displayed.

This parameter defines the time in seconds that LIAN 98 at most has to wait for an ACTTERM Respond ( COT 10 ) before the message  "*E: ACTTERM is missing !" is displayed.

yes / no

The test procedure is used to check the complete loop from the controlling station to the controlled station and back.

LIAN 98 will send a test command message ( ID 107 ) after the establishment of the communication and repeat it cyclic ( test cycle time ) if necessary. This ASDU is mirrored by the controlled station as a test confirmation message.

0 - 255 seconds

Dependent on this time LIAN 98 as master station will send the test command cyclic.

TDB buffer number where the telegram "C_TS_TA_1" ( ID 107, COT 6 ) is stored.

This ASDU address is the source address and will be inserted in each telegram sent during slave simulation.

All telegrams to be sent during slave simulation will be provided with this origin address and transmitted to the client with this address.

Multi client operation : ( max. 4 clients )
All telegrams, edited with originator address = 0, will be sent to the client with this address. If a valid address is entered ( consisting client connection ) in the telegram, the telegram will only be sent to this client. Each master must have an unambiguous originator address. LIAN 98 manages the originator - and IP-addresses of all clients which had established a connection to LIAN 98.

[ sec ]
Only important for the client !

[ sec ] Response time out
This parameter defines the time in seconds that the program should wait maximum for an acknowledge from the client.

[ sec ]
A S-format frame ( ACKRSN ) will be sent at the latest after this time starting from the last received telegram from the client.

[ sec ]
An U-format frame ( T E S T F R ) will be sent at the latest after this time starting from the last received telegram from the client.

Maximum difference ( k ) between the received sequence number ( RSN ) and the last acknowledged RSN.

The parameter ( w ) indicates the number of received I-format frames after which the RSN should be acknowledged at the latest from LIAN 98 with a S-format frame ( A C K R S N ).

yes / no

LIAN 98 will transmit a S-format frame ( ACKRSN ) to the clients when this parameter is activated. Otherwise the RSN will not be acknowledged. Furthermore the number of the TDB buffer has to be entered in which the telegram "ACKRSN" is stored.

yes / no

After the establishment of the connection LIAN 98 as server is waiting for a STARTDT from the client before I-format frames will be transmitted. As well a STOPDT from the client is expected before the connection will be closed.

yes / no

After the establishment of the connection to a client "End of initialization" will be transmitted automatically from LIAN 98. Furthermore the number of the TDB buffer has to be entered in which the telegram "M_EI_NA_1" ( ID 70, COT 4 ) is stored.

yes / no

LIAN 98 will transmit an U-format frame "TESTFR" ( see: t3 - Used for sending test frames ) to the clients if this parameter is activated. Furthermore the number of the TDB buffer has to be entered in which the telegram is stored.

yes / no

The current system time of the PC will be given back in an activation confirmation ( ACTCON ) if this parameter is activated. Otherwise the received time will only be mirrored.

yes / no

With the receipt of a time synchronization command ( ID 103, COT 6 ) the system time of the PC will be updated with the received values if this parameter is activated.

0 - 9 999 msec

A correction value can be entered for the setting of the PC system time with a time synchronization command. It will be added onto the received value in the synchronization command.

yes / no

LIAN 98 will acknowledge a "STARTDT" received from the client with the U-format frame "STARTDT" when this parameter is activated.

yes / no

LIAN 98 will acknowledge a "STOPDT" received from the client with the U-format frame "STOPDT" when this parameter is activated.

yes / no

LIAN 98 will acknowledge a "TESTFR" received from the client with the U-format frame "TESTFR confirm" when this parameter is activated.

yes / no

An  Activation Conformation  ( COT 7 ) or DEACTCON respond ( COT 9 ) is sent automatically during slave simulation after the receipt of an Activate Command ( COT 6 ) or a Deactivate Command ( COT 8 ) when this parameter is activated.

yes / no

An ACTTERM Respond ( COT 10 ) with delay time is sent automatically during slave simulation after the receipt of an Activate Command ( COT 6 ) when this parameter is activated.

This parameter defines the time in seconds that the program LIAN 98 delays the transmission of the "Activation Termination" respond ( COT 10 ).

yes / no

When this parameter is activated LIAN 98 will send automatically an  Activation Conformation  ( ID 107, COT 7 ) respond during server simulation after the receipt of a test command ( ID 107, COT 6 ).

yes / no

When LIAN 98 will receive a monitoring message in control direction during RTU simulation the message will be marked with an error. The error message is suppressed if this parameter is set to "yes".

Cyclic data transmission is used to provide a continuous updating function of current values of process variables in balanced and unbalanced transmission procedures.

A cyclic data transmission is done in LIAN 98 via sending cyclic send jobs ( see "transmit" ) or a not terminated send sequence ( see "send sequence list" ).

The general interrogation application function is used to update the controlling station after the station initialization procedure or when the controlling station detects a loss of information.

The general interrogation procedure of the controlling station requests the controlled station to transmit the actual values of all its process variables. The interrogation procedure is finished when the controlling station receives an "End of interrogation message".

The information transfer is triggered by an interrogation command ( ID 100, COT 6 ) message from the controlling station to the controlled station, which responds with an interrogation confirmation ( ID 100, COT 7 ) message. The controlled station transmits the interrogated information by means of one or more monitored information ASDUs. The last information ASDU is then followed by an "interrogation termination" message ( ID 100, COT 10 ), indicating that all information has been transferred.

The confirmation ( ACTCON ) and the termination of the general interrogation ( ACTTERM ) is done automatically in LIAN 98 if this is activated in the simulation list. Transmission of requested user data can be done via an entry in the action filter ( see "Action filters" ) or when process data are loaded by processing the data point list ( see "Simulate data points" ).

Date and time of controlled stations are initially synchronized by the controlling station after initialization and afterwards re-synchronized periodically.

A clock synchronization command ( ID 103 ) containing the full current clock time is sent from the controlling station. After the execution of the clock synchronization the controlled station generates a confirmation message which contains the local time before synchronization.

The controlling station sends a "SELECT command" ( ID 45... 50, COT 6 ) to the controlled station which responds by a "SELECT confirmation" ( COT 7 ) message if it is ready to receive the announced command. The time from the "SELECT command" to the "SELECT confirmation" is controlled by a configurable timeout interval ( Response timeout ).

A successful select procedure may then be deactivated by a break off. This command is transmitted by a "BREAK OFF command" ( COT 8 ) and the controlled station responds by a "BREAK OFF confirmation" ( COT 9 ) message. The time between these messages is controlled by a timeout interval ( Response timeout ).

If appropriate, an "EXECUTE command" ( ID 45... 51, COT 6 ) is sent to the controlled station, which responds by an "EXECUTE confirmation" ( COT 7 ) message ( positive when the specified control action begins, otherwise negative ). This procedure is also non interruptible and the time from the "EXECUTE command" to the "EXECUTE confirmation" is controlled by a configurable timeout interval. An "EXECUTE termination" ( COT 10 ) message is issued from the controlled station when the command application procedure is completed successfully. The addressed equipment should now change its state, and the new state is indicated to the controlling station by a spontaneous data message.

The confirmations ( ACTCON ) for the "SELECT command" and the "EXECUTE command" or "EXECUTE termination" ( ACTTERM ) message is done automatically in LIAN 98 if this is activated in the simulation list. The transmission of the change of state can be done manually or via an entry in the action filter ( see "Action filters ). If process data are loaded and the corresponding data point is available in the list the change of state is sent out of the data point list ( see "Simulate data points" ).

0800H ( fixed )
This field indicates the type of the MAC clients protocols. The internet protocol ( IP ) is used for protocol IEC 60870-5-104. For  IEC60870-5-104 
( No input is possible, it is only a display field ! )

4 ( fixed )
This field indicates the format of the IP Headers. Version = 4 ( IPv4 ) is used for protocol IEC60870-5-104.
( No input is possible, it is only a display field ! )

6 ( fixed )
This field indicates the protocol of the next level that is used in the data section of the internet datagram.
The transmission control protocol ( TCP ) is used for protocol IEC 60870-5-104. 
( No input is possible, it is only a display field ! )

IP address of an IEC 60870-5-104 client ( Master station ). The network traffic between this client and the server(s) will be recorded. The required stations must be indicated in the server list and the PC must be connected with the client over the same network hub.

Use this field to enter the IP addresses of the servers in the server list.
When the server list is empty all server connections will be captured.

Use this field to enter the port numbers of servers in the server list.
( Port = 2404 is normally used for IEC 60870-5-104 )

Each particular server to be captured must be inserted in the server list. LIAN 98 will use this list to prefilter the network traffic.If no server address is inserted all IP addresses will be captured.

In order to insert the addresses please proceed as follows :

Activate "Insert server addresses" ( button "insert" will be displayed ).
Enter the IP address and port number to be inserted in the fields "IP address server" / "Port number server". Take over the addresses in the server list with "insert". When all stations are inserted deactivate "Insert server addresses". ( The button "insert" disappears ).

In order to delete a server out of this list select it and click "delete".

yes / no

If a parameter list contains of valid process data they may also be used for the simulation. LIAN 98 takes into account this process data during simulation if this parameter is activated. For example LIAN 98 will send back to the client the correct change state of the switch after the receipt of a command ( ID 45, 46, 58 und 59 ) depending on the data point description.

The parameter list is organized line by line and can accommodate up to 2500 data points, each line is one data point.

With the activation of the process send button  process telegrams are generated of all data points and sent, starting from "line from". The transmission will completed by "till line" or by repeatedly pressing of the button.

1 ... number of data points

LIAN 98 starts from this or any subsequent line with generating and sending of process telegrams. The condition is that the data type is in accordance with the simulation mode. The RTI simulation uses only data types in control direction and the RTU simulation data types in monitoring direction.

> line from ; maximum number of data points

LIAN 98 stops in this or a previous line generating and sending of process telegrams.

0 ... 255 [sec]

Is the time that is observed between two consecutive process telegrams. If is set to 0 a gap of 100 msec is used.

1 ... 255

The processing of the simulation range can be repeated, depending on the parameter "number of passes".

yes / no

If this parameter is activated, LIAN 98 during RTU simulation will send back to the master the correct change of state of the switch after the receipt of a process command ( ID 45, 46, 58 and 59 ) provided that the indication is defined in the data point description ( PAR list ).

yes / no

If this parameter is activated, LIAN 98 during RTU simulation will send interrogated information to the master after the receipt of a GI command ( ID 100 ) depending on the indications in the PAR list. The selection of the indications is limited by the simulation range "line from" and "line till".

1 ... 128

This parameter specifies the number of interrogated messages that are block-wise constructed to telegramms and sent afterwards. A pause is taken after a block has been constructed, corresponding to the parameter "gap time between GI blocks" before building the next block. Values for blocking and gap time vary dependent on the baud rate.

1 ... 36000 [x 100 msec]

The construction of a GI block requires much less time than the subsequent sending. The transmission time is determined by the baud rate. The gap time between the blocks corresponds approximately to the transmission time for the messages in a block. For a baud rate of 9600 and a blocking of 10 messages about 3 seconds are indicated.

Everything is displayed :
link layer + data unit identifier + information objects/ elements

Everything is displayed :
link layer + data unit identifier + information objects/ elements

Only information objects/ elements are displayed.

Only link layer is displayed.

No information objects/ elements are displayed :
link layer + data unit identifier

Error during writing on the network, system error e.g. socket failure. 

The captured length is not equal to the packet length.

The length of the MAC Header is incorrect or the data packet is not be interpretable.

The length of the IPv4 header is incorrect.

The length of the TCP header is incorrect.

The length of the user data is not equal to the length of the APDU ( Application Protocol Data Unit ). The length of the MAC, IP or TCP header could also be incorrect.

The APCI format is wrong. ( Application Protocol Control Information )

The receive routine initially searches for 68H.  Each other character is noted as synchronization error.

The U format frame, a frame with fixed length cannot be interpreted.

The information stored in the field "variable structure qualifier" is senseless.

The length of the information ( object ) range is not plausible.

The respond at this time was not expected.

The received send sequence number or receive sequence number is wrong or a message with variable length ( I format ) is missing.

The TypeID set in the ASDU is not provided ( see protocol specific parameter - PAR file ) or is not expected as feedback.

The TypeID set in the ASDU is not provided. ( see protocol specific parameter - PAR file )

During RTU simulation LIAN 98 has received in control direction a message from the monitoring direction. This error message can be deactivated in the simulation list ( see settings for RTU simulation in the SIM file ).

An expected "Activation Confirm" ( COT 7 ) respond was not received within the parameterized "Response timeout".

An expected "Activation Termination" ( COT 10 ) respond was not received within the parameterized response timeout.

The "common Address of ASDU" is normally the station number and the same for all objects in an ASDU. According to standard it contains of 2 octets ( high, low ). In LIAN 98 the process data always refer to one station. For the simulation this address must also be entered into the RTI- or RTU list.
( see : <IEC 60870-5-104 : Simulation> )

The input can be done structured as well as unstructured.

maximum 15 ASCII characters
For a better documentation of the data tests is the station name together with the name of the data point displayed as plaintext.

Address of the data point
The address of the information object is used as target address in control direction and as source address in monitoring direction. The 3rd octet ( high ) is only used if the address of the information object is structured in order to define unambiguous addresses within a certain system.

The input can be done structured as well as unstructured.

Type identification ( TypeID )
The type, the structure and the format of the information object are defined with the TypeID.
For a better overview the name of the ASDU is in addition displayed automatically by LIAN 98.

Object state ( OFF, ON, ... )
. state of the single-, double command or the regulating step command 
. state of the single- or double information 

changing state
With the activation of the process send button  the data point is sent for the first time with the state of the object indicated in the list and subsequent increased by the "step value". The advantage during testing is that the state of the data point has changed in the next pass. There is no state change if the step value is not indicated or if it is zero.
( see : <IEC 60870-5-104 : Simulate data points> )

qualifier of command ( QOC ) : select / execute
0 : execute
1 : select

If in the data S/E for commands is not defined, zero is sent. !

qualifier of command ( QOC ) : Command pulse duration 
0 : Pulse duration is defined in the substation 
1 : short pulse duration ( circuit breaker )
2 : long pulse duration
3 : persistent output

If in the data no pulse duration for commands is defined, zero is sent. ! 

maximum 69 ASCII characters
For a better documentation of the data tests, the name of the data point together with the station name is displayed as plaintext.