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Note:
The NP MODBUS TCP card has two ports. The IP address on these ports must belong to two separate
networks. E.g. they can be assigned 89.0.0.1 and 90.0.0.1 with subnet masks 255.0.0.0.
Unit ID
This is the Unit ID number determined by the ModBus TCP slave device. This number will usually be zero.
PointGroup
PointGroups are configured by dragging a desired point group icon from the I/O Configuration PointGroup
toolbox to a PointGroup=Empty cell.
NP ModBus TCP Slave Port
A Modbus TCP Slave Port acts as a slave device on the ModBus network. It supports internal data arrays which
are defined and accessed by the RTP system.
Properties of NP ModBus TCP Slave Port:
Primary IP
This is the Primary Ethernet IP address used by the ModBus controller to communicate with the master device.
In a redundant 3200T/3201 processor configuration, processors "A" and "C" will communication on this network.
The format of an IP address is
nnn.nnn.nnn.nnn
, where
nnn
can be any number from 0 to 255. The default
address is 89.89.89.89. Enter an IP address according to the format specified for your network. This parameter
must match parameter ipaddress in Micro configuration file.
Secondary IP
This is the Secondary Ethernet IP address used by the ModBus controller to communicate with the master
device. In a redundant 3200T/3201 processor configuration, processors "B" and "D" will communication on this
network. The format of an IP address is
nnn.nnn.nnn.nnn
, where
nnn
can be any number from 0 to 255. The
default address is 90.90.90.90. Enter an IP address according to the format specified for your network. This
parameter must match parameter ipaddress_b in engine configuration file.
Note:
The MODBUS TCP card has two ports. The IP address on these ports must belong to two separate
networks. E.g. they can be assigned 89.0.0.1 and 90.0.0.1 with subnet masks 255.0.0.0.
