ABB SPA-ZC 402 Installation And Commissioning Manual

Also see for SPA-ZC 402: Product guide Installation and commissioning manual Installation and commissioning manual

Contents

39If both SNTP servers are offline, the event time stamps have the status:ClockNotSynchronized. If at least one SNTP server is online, but the server’sclock is not synchronized, the event time stamps have the status: ClockFailure. Inadditon, when a time synchronization message is not received during the startup,the time stamping starts at 00:00:00 01.01.1970. The time is requested from theSNTP server every 60 seconds.* Time Zone CorrectionDue to the SNTP time synchronization, a time offset must be added to the SPAtime synchronization message depending on the time zone. It affects the IEDHMI event list. The value (in minutes) is between - 720 and 780 and it iscomparable to Coordinated Universal Time (UTC).* OSI addresses are read-only and they are always the same. The IEC 61850 clientuses these addresses to access SPA-ZC 402 over MMS.An established IEC61850 connection uses the TCP keepalive functionality, if thereis no other active communication ongoing. TCP keepalive is sent every 15 seconds.If the peer is not responding, it is considered to be time-outed and the TCPconnection is closed.Fig. 6.7.-1 General communication parameters6.7.1. SPA Communication parameters* SPA AddressSPA-ZC 402 needs also an IED SPA address to access the SPA data. Everylogical device has SPA Communication Parameters Object properties exceptLD0, which describes the SPA-ZC 402. The SPA address object property has tobe the same as the configured SPA unit number in IED.* SPA PasswordSPA password is used for commands and it has to be the same as the definedpassword in the IED. The password can be modified in the IED side with HMI ora specific tool.SPA/ Ethernet AdapterSPA to IEC 61850 GatewayInstallation and Commissioning ManualSPA-ZC 402SPA-ZC 4021MRS755380