Setup guide

Chapter 3 Driver and Protocol Objects
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Automationdirect.com 3-87 Object Reference Manual
The PC Adapter Operating Mode determines if the Unilink PC Adapter
is the network manager (Master Host Interface Unit) or just another
network secondary (Host Interface Unit). There must be exactly one
MHIU per TIWAY network.
Enabling Automatic redundant media has no effect with the PC Adapter
card because it has only one port. If Siemens adds a second port, Lookout
automatically supports this option.
The TIWAY I Network Settings configure the communication
parameters for the TIWAY network. This network runs between the Unilink
PC Adapter card and its secondaries. Lookout default network settings
correspond to the default NIM settings as shipped from Siemens. See your
TIWAY documentation to modify any of these parameters.
CTI TCP/IP
Lookout supports the Control Technology Incorporated (CTI) Ethernet
TCP/IP adapter cards that can be installed in SIMATIC TI545 PLCs. In
order to work with such cards, your PC must be equipped with an Ethernet
network card and a Windows Sockets-Compliant TCP/IP software
package. Such packages are available from Microsoft, FTP Software, and
NetManage, Inc.
The Lookout CTI TCP/IP protocol option is Windows Sockets Compliant.
It uses connectionless UDP sockets in software, an industry standard for
TCP/IP protocols. In this protocol, a FIFO (first-in, first-out) stack is used
to temporarily store communication messages if the data highway is busy
or if multiple poll request are generated by several Tiway objects.
Because CTI TCP/IP utilizes sockets to momentarily store poll requests,
this protocol eliminates bottlenecks imposed by multiple Tiway objects
trying to access the data highway at the same time. Performance gains over
Local port, Unilink Host Adapter and Unilink PC Adapter settings can
be substantial when you are configuring a system that has several PLCs on
the same network.
If CTI TCP/IP is selected, you need to specify the IP address (Internet
protocol address) of the PLC. An Internet protocol address consists of four
numbers, separated by periods. Each number ranges from zero to 255
decimal. Thus, a typical Internet address might be 128.7.9.231. Ensure that
the IP address you enter matches the Internet protocol address of the PLC
as specified in its EEPROM or as programmed using PCL.