[Nakagaki-san, Ikeda]
Summary:
This work is related to K-Log#34519: Offload of F1 GAS.
Due to a communication failure with the network switch located in the SRM VIS mini-rack, communication with the SRM GAS Stepper Motor was lost.
To recover, we restarted the SRM network switch by unplugging and reconnecting the LAN cable on the OMC side, which supplies PoE to the switch.
Details:
We received a report from R. Takahashi-san that the SRM GAS Stepper Motor was not functioning.
Upon investigation, we found the following:
The relay of the Stepper Motor showed slight response.
There was no ping response from k1script1 to the LAN-serial converter.
The SRM VIS mini-rack network switch did respond to pings from k1script1.
However, the web interface of the network switch was unresponsive.
Based on this, we suspected a communication failure within the SRM network switch.
Since the SRM network switch uses PoE, its power can be controlled from the OMC side. However, we were unable to locate the port list for remote control.
Therefore, after consulting in the control room, we decided to enter the tunnel for manual intervention.
14:13 - Entered the center and reconnected the LAN cable from the OMC network switch to the SRM.
14:15 - Confirmed at the BS area workstation that the SRM GAS Stepper Motor could be turned ON via BIO and scripts.
14:18 - Handed over control to Takahashi-san.
14:19 - Exited the central area.
OMC Network Switch Port Assignments:
Pico Network
01: PD mini rack switch
02: OMC mini rack switch
03: SR3 mini rack switch
04: SR2 mini rack switch
05: SRM mini rack switch
06: BS mini rack switch
07: PR2 mini rack switch
08: Green X Table switch
09: Green Y Table switch
10: AS Table switch
11: Precision Air Processor SRX1
12: AS_WFS HWP
DGS Network
18: OMC Workstation