Instance 06h Attributes (Heartbeat, Input-Only Extended)
This instance is used as heartbeat for input-only extended connections, and does not carry any attributes. The state of connections made to this instance does not affect the state of the Anybus CompactCom module, i.e. if the connection times out, the module does not switch to the Error state. The data size of the Heartbeat instance in the Forward_Open-request should be 0 bytes, however other values are also permitted.
The instance number for this instance can be changed by implementing the corresponding attribute in the EtherNet/IP Host Object.
# | Name | Access | Type | Value/Description |
|---|---|---|---|---|
3 | Data | Set | N/A | - (The data size of this attribute is zero) |
4 | Size | Get | UINT | 0 (Number of bytes in attribute 3) |