Siemens Moore 353 - DOUT_ - Digital Outputs

UM353-1 Function Blocks
March 2003
3-49
3.2.43 DOUT_ - Digital Outputs
DOUT_ function blocks are used to turn on remote
devices powered from an external source. The negative
terminal of the external power source must be connected to
station common. The transistor switch will turn on when
the block input S is high (1) and will turn off when low
(0). Two digital output function blocks are available on the
Controller Board.
Terminal Connections:
DOUT1 ----- DOUT1+ (8) -- DOUT1c (9)
DOUT2 ----- DOUT2+ (10) -- DOUT2c (9)
DOUT_+
DOUT_c
DIGITAL OUTPUT _
DIGITAL OUTPUT
DOUT_
S
witch
I
NPU
T
S
INPUT S
(H)
......
loop tag.block tag.output (null)
Open Collector
Transistor Switch
S
BLOCK DIAGRAM
S
RELAY
24 V dc
Typical External
Relay Circuit
D/A
DOUT_+
DOUT_c
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