ABB COM600 series 5.0, Technical Reference Manual

Page: 99 / 164

Channel attributes 4.4.2.
Table 4.4.2-1 Channel attributes
Description Value or Value range/ Default Property / Para-
meter
Basic
The state of the channel - whether it is in
use or not. When a channel is not in use,
no data can be transmitted on it, and no
data is received from it. The channel
attributes can be read as usual. Generally,
a channel must be taken out of use by
setting this attribute to 0 before the chan-
nel attributes can be written.
When a channel is stopped by setting the
In use attribute to 0, all data transmission
on the channel ceases. However, before
that, the protocol stack executes to the
end all on-going data transactions. For
example, the of the station in turn is com-
pleted.
0 = Not in use, the channel
communication is stopped.
1 = In use.
In use
Diagnostic Coun-
ters
The number of transmitted data messages. Transmitted tele-
grams
The number of failed transmissions. Failed transmissions
The number of transmitted commands. Timeout errors
The number of transmitted information
messages. Transmitted I format
messages
The number of transmitted supervisory
messages. Transmitted S
format messages
The number of transmitted unnumbered
messages. Transmitted U
format messages
The number of received information mes-
sages. Received I format
messages
The number of received supervisory mes-
sages. Received S format
messages
The number of received unnumbered
messages. Received U format
messages
The number of received messages. Received messages
The count of TCP connect request. TCP Connect count
The count of accepted TCP connect
request. TCP Accept count
The count of closed TCP connection. TCP Close count
99
COM600 series 5.0
1MRS758690
Master Protocols (Ethernet) and Applications Technical Refer-
ence Manual