Class 1 Connection Details
General
Class 1 connections are used to transfer I/O data, and can be established to instances in the Assembly Object. Each Class 1 connection will establish two data transports; one consuming and one producing. The heartbeat instances can be used for connections that shall only access inputs. Class 1 connections use UDP transport. Null forward open is supported.
Total number of supported class 1 connections: | 4 |
Max input connection size: | 1448 bytes with Large_Forward_Open, 509 bytes with Forward_Open |
Max output connection size: | 1448 bytes with Large_Forward_Open, 505 bytes with Forward_Open |
Supported RPI (Requested Packet Interval): | 1... 3200ms |
T→O Connection type: | Point-to-point, Multicast, Null |
O→-T Connection type: | Point-to-point, Null |
Supported trigger types: | Cyclic, CoS (Change of State) |
Supported priorities: | Low, High, Scheduled, Urgent |
T | Target, in this case the module |
O | Origin, in this case the master |
Connection Types
Exclusive-Owner connection
This type of connection controls the outputs of the Anybus module and does not depend on other connections.
Max. no. of Exclusive-Owner connections:
1
Connection point O →T:
Assembly Object, instance 96h (Default)
Connection point T →O:
Assembly Object, instance 64h (Default)
Input-Only connection
This type of connection is used to read data from the Anybus module without controlling the outputs. It does not depend on other connections.
Max. no. of Input-Only connections:
Up to 4
(Shared with Exclusive-Owner and Listen-Only connections)
Connection point O →T:
Assembly Object, instance 03h (Default)
Connection point T →O:
Assembly Object, instance 64h (Default)
Please not that if an Exclusive-Owner connection has been opened towards the module and times out, the Input-Only connection times out as well. If the Exclusive-Owner connection is properly closed, the Input-Only connection remains unaffected.
Input-Only Extended connection
This connections functionality is the same as the standard Input-Only connection. However when this connection times out it does not affect the state of the application.
Connection point O →T:
Assembly Object, instance 06h (Default)
Connection point T →O:
Assembly Object, instance 64h (Default)
Listen-Only connection
This type of connection requires another connection in order to exist. If that connection (Exclusive-Owner or Input-Only) is closed, the Listen-Only connection will be closed as well.
Max. no. of Input-Only connections:
Up to 4
(Shared with Exclusive-Owner and Input-Only connections)
Connection point O →T:
Assembly Object, instance 04h (Default)
Connection point T →O:
Assembly Object, instance 64h (Default)
Listen-Only Extended connection
This connections functionality is the same as the standard Listen-Only connection. However when this connection times out it does not affect the state of the application.
Connection point O →T:
Assembly Object, instance 07h (Default)
Connection point T →O:
Assembly Object, instance 64h (Default)
Connection point T →O:
Assembly Object, instance 64h (Default)
Redundant-Owner connection
This connection type is not supported by the module.