Upgrade of wide area remote control system (WARCS) at SPring-8 and SACLA

The accelerator control system of SPring-8 and SACLA are isolated from any other network for security reasons. When a malfunction occurs at the accelerator, operator calls machine experts for assistance, even if who are absent by holiday or official trip. WARCS (Wide Area Remote Control System) was developed and have been operated to provide secure network access from remote sites at urgent maintenance. Since the WARCS needs some non-standard applications, experts are required to bring dedicate lap-top PCs. Tunneling technology is another considerable issue, because the tunneling protocol of the WARCS are often disapproved under the recent security policy of universities, institutes, nor accommodations. To resolve these issues, we developed new WARCS. For the first issue, we consider the client platforms to be run under standard Windows or Mac PCs. For the second issue, the new WARCS consists of standard network technologies to pass the network security/access controls. The new WARCS are installed and in operation at both SPring-8 and SACLA from 2012. (author)