Siemens SICAM 7KG85X, Manual, Page: 70 / 281

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Connection overflows:
Counter of the attempts to establish more connections than allowed;
Number of allowed connection attempts:
For user port number 502: ≥ 4 connection attempts via the standard port 502
For other user port numbers: ≥ 3 connection attempts via standard port 502 and/or ≥ 3 connection
attempts via user port
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Access rights: as configured
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Communication supervision time: as configured
Diagnostic Information of Connections
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Server port:
Server port number of the current connection in the respective column; if 0 is displayed, the connection
is inactive or down
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Client IP:Port:
Last or current IP address and port number of the client
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Received bytes:
Total number of bytes received by the TCP port
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Sent bytes:
Total number of bytes sent to the TCP port
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Good messages:
Total number of messages received that were detected as valid Modbus messages
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MBAP header errors:
Error in the MBAP header: incorrect protocol ID or implausible length of data
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Exception responses:
Counters of the transmitted exception response messages
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Access rights violations:
Total number of write accesses received if the parameter Access rights for port xxx is set to Read only
of the associated TCP port (for example 502) in the Communication Ethernet input/output window. For
more information, refer to chapter
2.6.1.2 Configuration via Web Pages .
IEC 61850
Function Description
The IEC 61850 protocol is also used for communication via the Ethernet interface. The IEC 61850 specification
with a detailed explanation of the protocol is given in the International Standard IEC 61850. The device
supports IEC 61850, Edition 2.
The device supports 6 input configurations:
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1-phase system
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3-wire network – balanced (1I)
•
3-wire network – unbalanced (3I)
•
3-wire network – unbalanced (2I)
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4-wire network – balanced (1I)
•
4-wire network – unbalanced (3I)
2.6.3
2.6.3.1
Basic Functions
2.6 Ethernet Communication
SICAM, SICAM P850/P855 7KG85X, Manual 69
E50417-H1040-C482-A9, Edition 03.2022