Instruction manual

44
12) Priority of execution of programs
Function Priority
Circuit 1 in alarm, circuits 2 and 3 in time distribution (D1D2
tower clock)
1 (high)
Manual control of relays 2
Manual selection of a particular day (bank holiday / day
before bank holiday / special day)
3
Programmed special day 4
Programmed holidays and bank holidays 5
Weekly program 6 (low)
When the Sigma is congured in one of the modes, all the program steps of the lower-
priority modes are ignored.
The “astronomical” and “periodic” modes, which are accessible only via software
programming on a PC, do not have high priority (the astronomical, periodic and
weekly modes, which will rarely be programmed together on the same circuit, are
lumped together at low level).