Modbus Serial Ied Attributes - ABB COM600 series User Manual

1MRS756913
5.3.4.
COM600 series, Version 5.1
Modbus Serial Slave (OPC) User's Manual
Property / Parameter
TCP Accept
TCP Close

Modbus Serial IED attributes

Table 5.3.4-1 Modbus Serial IED attributes
Property / Parameter
In Use
Object Status
Device Connection Status
Value or Value range/ Default
Value or Value range/ Default
0 = Out of use
1 = In use
Default: 0
When written:
1 = Re-transmit system mes-
sage
When read:
A status code, for example,
0 = OK (communication works
properly)
13801 = Device suspended
True = Device connection OK
False = Device connection
suspended
Description
Incremented each time a TCP
connect request is accepted.
Incremented each time a TCP
connection is closed.
Description
Data type: Integer
Access: No limitations
The operational status of the
device - in use or out of use.
Taking the device out of use
with this attribute stops all data
communication with the device.
All operations that would result
in a data exchange are dis-
abled. The device itself is not
affected by the attribute, only
the protocol stack's image of
the device. Setting In use to 1
is allowed only if the device
address is legal.
Data type: Integer
Access: No limitations
Indicates the detailed informa-
tion about the station device
status. Writing to the Object
Status attribute (Object Status
= 1) of a device makes the
protocol stack to re-transmit the
latest system message caused
by the device. Possible
"Stopped" and "Suspended"
messages cause old marking
of OPC items. By reading the
Object Status attribute, the
status code of the system
message can be read.
Data type: Boolean
Access: Read-only
Indicates the status of the
device connection.
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