SC MASTER LITE
SC NET System
•
53
Ensuring communication within the SC Net
For an SC Net system to work reliably, the data rate needs to
be set to an appropriate value. SC Master automatically nego-
tiates the baud rate with the modules, provided setting "
Au-
doBd
" has been chosen in Menu "Options – SC Net –
SCN
Baud
". However, the SC Master does not know how many
modules are connected. This is why, after powering up the
system, you need to check whether all SC Net modules com-
municate with the SC Master. The are certain LEDs at the SC
modules which indicate whether communication has been
established:
•
POWER LED
...red lamp that blinks every second when
power supply and module are in working order. If the LED
is on permanently or not on at all, there is either a mal-
function or no power supply.
•
DATA LED
...lights up in green while the data for the set
module address are arriving.
•
SC NET LED
...lights up in blue when the module detects
a valid activity on the network, which usually happens
every 3 seconds in a passive state. If there is more activity
on the network bus, the LED lights up more frequently and
may even light up permanently.
After powering up the system, all the
POWER
LEDS at the SC
Net modules must light and blink every second, while the
SC
NET
LEDs must briefly blink every three seconds. If there is no
communication with one module – something that may happen
Summary of Contents for SC MASTER LITE
Page 1: ...SC MASTER LITE AV Stumpfl...
Page 2: ......
Page 7: ...SC MASTER LITE Contents v Glossary 101 Index 104...
Page 8: ......
Page 16: ......
Page 30: ......
Page 69: ...SC MASTER LITE The Menu 61 Menu Chart...
Page 70: ...62 The Menu...
