WP 7658, E1700370, T1700433

Filiberto, Patrick

We have completed the initial changes to the EtherCAT network topology. There are now six EtherCAT devices: MSR Auxiliary, Vertex Auxiliary, Vertex Squeezer, Vertex ISC, EndX and EndY.

MSR Auxiliary is the single chassis in the MSR. This chassis used to supply the fiber connections to the set of ISC chassis in the CER and to the end stations. These fiber connections are now on separate devices (Vertex ISC, EndX and EndY) that interface through the new media converter chassis in the MSR. The copper connection from the computer to the MSR Auxiliary chassis remains unchanged.

Vertex Auxiliary is the EtherCAT hub in the LVEA which connects to the illuminators and serial readback of the TCS chillers.

Vertex Auxiliary and Vertex Squeezer were previously and remain on separate devices. They are also now interfaced to through the new media converter chassis.

The PSL and TCS set of chassis will later be given their own single device and moved off of the Vertex ISC device. They will also be interfaced to through the new media converter chassis.

The connection to the baffle photodiodes will later be moved from the Vertex ISC device to the Vertex Auxiliary device.

Daniel previously made a new TwinCAT system manager in preparation for this work. The only issue I had was that I was not able to see any terminals when I used it to scan the MSR Auxiliary device. I was able to remedy this by changing the NetId of this device from 10.40.10.1.1.1 to 10.40.10.1.4.1. After this everything worked very smoothly.