WP13034

Fil, Dave, Daniel, Jonathan, Patrick, Sophie, Camilla,

Last week Fil and Daniel powered up the Cheta slow controls Beckhoff chassis in the MSR. It was sitting on a cart behind MSR02, connected to the MSR Chassis AUX-1 ethernet port with a short cat6 cable. Daniel added the AWS system to the SYS ECAT TCS CS PLC.

Today we moved the Cheta chassis into the Vacuum Prep Lab. It ethernt connection to the MSR chassis is now quite convoluted, a drawing can be found in D2600049

From the Cheta chassis the path is: cat6 cable to the wall RJ45 jack, building wiring connects this to the RJ45 patch panel in Room 163. Fil ran a cat6 cable from the patch, under the 163 floor, through a wall penetration to the CUR underfloor, then up to the wall mounted CUR CDS switch. This switch is connected to the MSR core switch, which in turn is connected to the FE switch in MSR04. A cat6 cable from this switch over to the Beckhoff chassis completes the link.

The link was tested in two stages. After Jonathan configured the core switch and the two edge switches to create a private VLAN connecting the switches, Fil moved the chassis into the CUR and connected it to the sw-cur-aux-stk port 1/1/7. I ran the above rack cat6 in the MSR from sw-msr-h1fe-stk 2/1/2 to the MSR chassis.

When powered down in the MSR DEV0 system went into a bad state. The H1:SYS_ETHERCAT_DEVICE_0_LOSTQUEUEDFRAMES channel (normally zero) accrued thousands of frames. The LOSTFRAMES (normally zero) became 13, the SLAVECOUNTACTUAL (normally 19) became zero.

When powered back up in the CUR, DEV0 status went green, the slave count went back to 19. The frame countered latched at their non-zero values. After Patrick reset them they stayed at zero.

Next Fil moved the chassis into the Vacuum Prep Lab, everything went green again and the frame counters stayed zero after reset.