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Geo SCADA Knowledge Base
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Originally published on Geo SCADA Knowledge Base by sbeadle1 | June 10, 2021 12:01 AM
Statistic | Description |
---|---|
Good Messages | Number of valid data link messages received from the outstation that have a positive response. |
No Replies | Number responses that have been timed out, i.e. we have transmitted a message but not received a response (if one was expected) in the time allowed. If the message was only half received then it would count as a no reply & be purged. |
Bad Messages | Number of valid data link messages received but whose content is either not correct or contains a negative response. Examples: if the outstation sent a message that had the correct headers and CRCs but whose content did not match what ClearSCADA expected for a reply if the outstation sent a negative response to a control |
Errors | Number of data link messages received with invalid CRCs |
Integrity Polls Attempted | Number of integrity (Class 0,1,2,3) poll requests sent to this outstation |
Integrity Polls Successful | Number of responses received to integrity poll requests from this outstation. |
Event Polls (Class n) Attempted | Number of event poll requests sent for a specific event class (Class 1,2 or 3) sent to this outstation. |
Event Polls (Class n) Successful | Number of responses received to event poll requests for a specific event class (Class 1,2 or 3) from this outstation |
Unsolicited Messages Received | Number of unsolicited responses received from this outstation. |
Statistic | Description |
---|---|
Messages | Total number of link layer messages transmitted + valid link layer messages received. This includes the number of broadcast messages transmitted + messages targeted at outstations + good outstation messages received + bad outstation messages received + outstation replies + aborts. |
Replies | Total number of messages received as replies to solicited messages (which will include negative responses). |
Timeouts | Total number of transmit timeouts (most likely to happen if hardware flow control is enabled) + total outstation no replies. |
Errors | Total number of outstation errors. |
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