Telegram Acknowledgement Parameters

The parameters on this page are available in both the "Bereichs-Linien-Segment-Koppler 902321" application program and the "Bereichs-Linien-Koppler / Verstärker 902421" application program.

Note

When using the "Bereichs-Linien-Koppler / Verstärker 902421" application program, these parameters are not available if the Operating Mode on the General page is set to Line Repeater.

Contents


On the Superordinate Side

Group Telegrams

Parameter

Setting

Group telegrams

Always
Only when forwarded

Defines when received group telegrams are acknowledged on the superordinate side.

Setting

Behavior

Always

The coupler acknowledges every received group telegram on the superordinate line.

Only when forwarded

The coupler acknowledges only those group telegrams on the superordinate line that are forwarded to the subordinate line.

Physical Addresses

Parameter

Setting

Physical addresses

Always
Only when forwarded
Always reject (NACK)

Defines when received physically addressed telegrams are acknowledged on the superordinate backbone line or area line.

Setting

Behavior

Always

The coupler acknowledges every received physically addressed telegram on the superordinate line.

Only when forwarded

The coupler acknowledges only those physically addressed telegrams on the superordinate side that are forwarded to the subordinate side.

Always reject (NACK)

The coupler rejects all physically addressed telegrams on the superordinate side and returns a NACK Confirm. No physically addressed telegram can pass through the coupler. The coupler cannot be addressed physically from the superordinate side (application download not possible).

Note

This setting cannot be configured simultaneously on both sides.


On the Subordinate Side

Group Telegrams

Parameter

Setting

Group telegrams

Always
Only when forwarded

Defines when received group telegrams are acknowledged on the subordinate line.

Setting

Behavior

Always

The coupler acknowledges every received group telegram on the subordinate line.

Only when forwarded

The coupler acknowledges only those group telegrams on the subordinate line that are forwarded to the superordinate line.

Physical Addresses

Parameter

Setting

Physical addresses

Always
Only when forwarded
Always reject (NACK)

Defines when received physically addressed telegrams are acknowledged on the subordinate line.

Setting

Behavior

Always

The coupler acknowledges every received physically addressed telegram on the subordinate line.

Only when forwarded

The coupler acknowledges only those physically addressed telegrams on the subordinate line that are forwarded to the superordinate line.

Always reject (NACK)

The coupler rejects all physically addressed telegrams on the subordinate line and returns a NACK Confirm. No physically addressed telegram can pass through the coupler. The coupler cannot be addressed physically from the subordinate line (application download not possible).

Note

This setting cannot be configured simultaneously on both sides.


///