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An Ethernet connection between the PXI and the PC is required for Tosca to communicate with Synapse. In principle, the regular internet connection is sufficient for this purpose (assuming both PXI and PC are connected to the network), but in practice, a direct Ethernet connection is desirable to maximize performance. The most recent PXI controllers have a second Ethernet port which is ideal for this purpose. If the PC does not have two Ethernet ports, a gigabit USB-to-Ethernet adapter works well.
Note that the communication between Tosca and Synapse is relayed through the intermediary TDT Synapse Interface which runs on the PC.
Ethernet connection IP addresses
Assuming use of a direct Ethernet connection between the PXI and PC, it is necessary to assign an IP address to the Ethernet adapter on each device. The recommended settings are:
PXI
IP address: 11.12.13.15
Subnet mask: 255.255.255.0
PC
IP address: 11.12.13.14
Subnet mask: 255.255.255.0
(Note that starting the address with 11 instead of 10 eliminates difficulty connecting to the network drives after booting.)
It is necessary to edit configuration files to tell Tosca and the TDT Synapse Interface about these IP addresses; there are no in-software controls to do so.
Tosca
Edit "C:\ProgramData\EPL\Tosca Defaults.ini" and add (or modify) the following lines:
[SynapseInterface]
IP Address=11.12.13.14
Port=4920
Synapse Interface
This step can also be performed as part of the Synapse Interface installation.
Edit "C:\ProgramData\EPL\TDT Interface" and add (or modify) the following lines:
[TCP]
Server=11.12.13.14
Port=4920
Note that the IP address is set on both sides to the IP address of the PC, because both sides need to know which application is hosting the TCP server (the TDT Synapse Interface).
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