Installation and Commissioning
Manual SCA-340 / SCA-340-L sysmik.de 25
LED status Description
off The process has not been started.
blinking yellow
(2 s period)
10 % on time
The process is running and needs less than
10 % of processor time.
50 % on time
The process is running and needs between 10 %
and 50 % processor time.
90 % on time
The process is running and needs more than
50 % processor time.
Table 3.3.3.2: Process status LED behavior
During a software update, the process status LEDs signalize the programming
process as a running light.
3.3.4 IO Status LED “IO”
The communication state of the IO terminals is signalized by a dual colored “IO”
LED, located at the supply connector.
State Description
off The IO server is not running.
green Communication with Inline terminals is OK.
red
Communication with the Inline Terminals is not working. Possibly, there are no
terminals attached or the terminals are not snapped-in properly.
Table 3.3.4.1: IO status LED
3.3.5 Communication LEDs “COM1”, “COM2”, “LON”
Located at the interface connector, the Scalibur has LEDs which signalize the data
transmission of their respective interface. The layout of the LEDs resembles the
layout of the terminals: COM1 upper left, COM2 upper right, and LON below (only
SCA-340-L).
Fig. 3.3.5.1: COM LEDs
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