7 Operation
7.5 Maintenance
140
SICAM MMU 7KG9663, Device Manual
E50417-H1040-C514-A3, Edition 01.2016
Counters
•
Received bytes:
Total number of received bytes via communication since the
last start of the device or since last deleting the counter
•
Sent bytes:
Total number of sent bytes via communication since the last
start of the device or since last deleting the counter
•
Good messages:
Total number of received frames, which were detected as
valid telegrams since the last start of the device or since last
deleting the counter
•
Bad messages:
Total number of telegram errors since the start of the device
or since last deleting the counter, including:
- no responses (timeout after sending a request)
- faulty responses
- errors in the received telegram format
Modbus UDP sends errors because the UDP server port is
not available, for example, or the UDP server is not online (is
implicitly included in the
Response timeout
).
Transmission and Error Rate
•
Received bytes/10 s:
Received bytes in the last 10 s
•
Sent bytes/10 s:
Sent bytes in the last 10 s
•
Bad messages/10 s:
Number of frame errors in the last 10 s
Client
•
Communication status:
Startup 1: Start phase 1 has started
Startup 1 fail: Incorrect MLFB number
Startup 2: Start phase 2 has started
Startup 2 fail: Incorrect device configuration values read from
the SICAM I/O Unit.
Data Exchange: Normal data exchange between
SICAM MMU and SICAM I/O Unit
•
Transfer time:
Transfer time of a telegram cycle from the SICAM MMU to the
SICAM I/O Unit and back
If the communication is faulted or interrupted, the transfer
time is evaluated as invalid and displayed with ***.
SICAM-MMU_7KG9663_US.book Page 140 Monday, December 7, 2015 12:22 PM