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1MRS756445
3.4.3.
COM600 series, Version 4.1
Modbus TCP Master (OPC) User's Manual
Property/Parameter
AE Prog ID
DA Prog ID
Configuring Modbus OPC Server Subnetwork properties
The Modbus OPC Server subnetwork properties that can be configured and value ranges
for them can be found in Table 3.4.3-1. The actual configuration by using SAB600 is
performed as described in 3.4.1, General about configuring objects.
Each Modbus OPC Server node of the system must have a
unique subnet/node address.
Table 3.4.3-1 Modbus Subnetwork properties
Property/Parameter
Basic
In use
Local Address
Communication Control
Buffer Pool Size
Response Timeout
Header Timeout
Polling
Poll Delay
Value or Value range/Default
Value or Value range/ Default
In Use
Not In Use
Default: In Use
127.0.0.1
0..255
Default: 12
0..65535
Default: 2
0..65535
Default: 700
0..65535
Default: 40
Description
Instance identification of dia-
gnostic OPC alarm and event
server.
Instance identification of dia-
gnostic OPC data access
server.
Description
Specifies if channel is in use or
not.
Specifies the IP address used
by communication line.
Specifies the number of mes-
sage buffers reserved for the
line.
Specifies the time (in seconds)
that the Modbus 3.0 link waits
for the end of the received
message.
Specifies the maximum waiting
time (in milliseconds within
which the first byte of a link
layer response should have
been received).
Delay between polling mes-
sages in milliseconds.
23
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