3. Signal Group status

Signal groups status (S0001) is defined as a text string where each character represents the current status for each signal group. Each character has the following definition:

Table 3.1 Signal group status

ASCII	Definition	Output	Green request
a	Disabled	Dark
b	Manual control to dark	Dark
c	Manual control to flashing yellow	Yellow flash
d	Manual control to flashing red	Red flash
e	Start-up interval 1	Dark or yellow flash
f	Start-up interval 2	Vehicles: yellow, Pedestrians: red
g	Start-up interval 3	Red
h	Manual control to red	Red
A	Red rest without start order	Red	N
B	Red rest	Red	N
C	Red rest with privilege measurement	Red	N
D	Red with reservation	Red	Y/N
E	Red with request and without start order	Red	Y
F	Red with request	Red	Y
G	Red with start in own stage	Red	Y
0	Red-yellow	Red/Yellow	Y
1	Minimum green	Green	Y
2	Max. minimum green	Green	Y/N
3	Maximum green (extension)	Green	Y
4	Green rest	Green	N
5	Green passive	Green	N
6	Fixed past-end-green	Green	Y/N
7	Extra green according to intergreen times	Green	Y/N
8	Variable past-end-green	Green	Y
9	Flashing green	Green	Y/N
N	Fixed yellow or yellow-green	Yellow	Y/N
O	Variable yellow or yellow green	Yellow	Y
P	Variable red	Red	Y