7-9
C7-621 / C7-621 AS-i Control Systems
C79000-G7076-C621-01
Connecting loads to a single voltage output is only possible with a 2-wire
connection.
The connection of loads to a voltage output using a 2-wire connection is
made at the analog output AO-U and the reference point of the measuring
circuit AO-M.
Figure 7-6 shows the connection of loads to a voltage output of a
non-floating analog output module with a 2-wire connection.
C7-CPU
DAC
R
L
AO-U
Logic
AO-M
Input 24V DC
L+
M
NC
NC
Functional ground
M
C7-621
Figure 7-6 Connection of Loads to a Voltage Output of a Non-Floating Analog
Output Module
Connecting Loads
to a Voltage
Output
2-Wire Connection
C7-621 Analog I/Os
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