Attributes; Server Attributes; Channel Attributes - ABB COM600 User Manual

IEC 60870-5-101
Master (OPC) 3.3
5.4.
5.4.1.
5.4.2.
58
Station Automation COM600
User's Manual

Attributes

Server attributes

Table 5.4.1-1 IEC 101 OPC Server attributes
Property / Para- Value or Value range/ Default
meter
Protocol Stack Ver- Value: Version information
sion

Channel attributes

Table 5.4.2-1 Channel attributes
Property / Para- Value or Value range/ Default
meter
Basic
In use 0 = Not in use, the channel
communication is stopped.
1 = In use.
Modem Signal
Clear To Send 0 = Passive signal
(CTS)
1 = Active signal
Data Carrier Detect 0 = Passive signal
(DCD)
1 = Active signal
Diagnostic Coun-
ters
Transmitted Mes-
sages
Failed Transmis-
sions
Description
The version information of the Protocol
Stack.
Description
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.
Indicates the state of the Clear To Send
(CTS) signal.
Indicates the state of Data Carrier Detect
(DCD) signal.
The number of transmitted data messages.
The number of failed transmissions.
1MRS756703