The more commonly used Text System Tags are listed below.
%TALMGLOBAL - Global Alarm Status (text)
%TALMGLOBAL(priority) - Alarm Status of specified alarm priority (text)
%TALMLAST - Tagname of most recent Alarm
%TALMLASTU - Tagname of most recent unacknowledged Alarm
%TCOMST(comport number) - Status of specified Communications Port
%TKRLMODE - Communications Mode or Simulation Mode of Kernel