User Guide
DVS-21
02/2018
• V.1.0 • L. Wolle
34/131
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7 Modules
The correct specification of the hardware/firmware is important for the display of the input fields
and for the treatment by the CPU!
The specification of the used codec is used exclusively for displaying the elements for level-setting.
Display and control elements:
LEDs
CLK GREEN - FLASHING
System clock
I/O
GREEN - FLASHING (synchronous) Direction of transmission: BUS <-- Module
GREEN - FLASHING (alternately) Direction of transmission: BUS --> Module
7.1 SV01
System supply and CPU monitoring with potential free fault message.
For switching tasks, two floating optocoupler inputs (AC/DC) and a configurable relay output are
available.
Relay Configuration:
Fault indication
Relay is fault indication relay (no fault = closed contacts)
Available for free of disposal
The relay can be used arbitrarily.
Switching status follows the line status.
(Line 2 ON = relay contacts closed)
Available for free of disposal (inverse)
The relay can be used arbitrarily.
Switching status, contrary to the line status.
(Line 2 OFF = Relay contacts closed)
Line function:
Port 1:
Line 1 CPU -> M
Trigger fault indication, LED (RED) and relay (if option
enabled)
Line 2 CPU -> M Relay (if option unchecked)
Line 3 M -> CPU Optocoupler 1
Line 4 M -> CPU Optocoupler 2
Line 7 CPU -> M
Measurement output voltage (from firmware x115 and
above)
Line 8 CPU -> M
Temperature measurement output (from firmware x115
and above)
Port 2 - 4: without function
