Cold Head Cycling Is Disabled During Scan.

Cold Head Cycling Is Disabled During Scan. The system is an OpenSpeed running HFO3 M4 software. Coldhead cycling is disabled, so the 2 stage coldhead runs during scanning. There are SHEM communication errors in the /usr/g/service/log/tcuErrors log. I can telnet between the SHEM and the system, so it looks like network connection is good. The MAGNET_MONITOR_IP line is configured with the SHEM IP address in /etc/hosts on the MR. Ran /MVServe/bin/Net_Config on the SHEM. Looks OK. See long description for more info: /usr/g/service/log/tcuErrors log: 12/23/2003 11:49: PMHost.cc:476 CH Status unchanged: Previous Status = Communication Fail, Current Status = Communication Fail 12/23/2003 11:51: PMColdHead.cc:29 Comm with SHeM failed errors in gesys log: Tue Dec 23 12:17:25 2003 Error: 2225113 Host: lx-mr Process: NSP File: HPC_PORT_ID:hpc_change_state Line: 40 ColdHead switching not enabled during scan. HPC was told to initiate a scan with the ColdHeads on. Image degradation is likely while this condition remains. {sdc@lx-mr}[1] getver Hostname : lx-mr Build number for MrpApps is HFO3.29I_M4_0320.a Build number for PostSdC is HFO3.29I_M4_0320.a Build number for cclass is HFO3.29I_M4_0320.a Build number for driverSupport is HFO3.29I_M4_0320.a Build number for insite is HFO3.29I_M4_0320.a Build number for install is HFO3.29I_M4_0320.a Build number for os_cd is 6_15.4.a Build number for pc is HFO3.29I_M4_0320.a MR Software release: H.F.O.3.0320a

The Upper Coldhead Does Not Turn Off When Scanning. See long description. Coldhead cycling is not working, the upper coldhead does not turn off when scanning. FE did the setup on the SHEM and had the OLC successfully run a Checkout. Can telnet between the MR and the SHEM both ways. The magnet pressure and HE level are good so this should not be causing the failure to cycle the two stage coldhead. The following error is seen in the /usr/g/service/log/tcuErrors log: 06/10/2004 13:04: PMColdHead.cc:29 Comm with SHeM failed 06/10/2004 13:04: PMHost.cc:425 CH Status unchanged: Previous Status = Communication Fail, Current Status = Communication Fail