Datexel DAT 6000 SERIES, Руководство пользователя

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DAT 6000
4
PRELIMINARY
Multidrop connection
The CLK input and the DATA output of the DAT6000 devices are actives only
when the ENABLE signal is on. Consequently It is possible to connect all the
DATA signals to the same PLC digital input and all the CLK signals to the same
PLC digital output. Devices can be activated one by one sending the ENABLE
signal to the selected device only.
As shown in the figure below, using n°3 DAT6000 devices it is possible to read
the value of up to 12 analog sensors using only 4 PLC digital outputs and 1 PLC
digital input. Each new device connected will use only one more PLC digital
output (ENABLE).
Changing the device type, it is possible to create many combinations of analog
inputs (i.e.: 4 Tc inputs on the first device, 4 mA inputs on the second device
and 2 Potentiometer inputs on the third device), without to change the wiring to
the PLC and the software data reading procedure.
P
M
O
EN A BLE 3
D ATA
C LK
GN D
D AT 6 02 1
N ° 1
P
M
O
P
M
O
N
N
N
EN A BLE 2
EN A BLE 1
D igita l o ut
D igita l o ut
D igita l o ut
D igita l in
D igita l o ut
Ground
Tc 1
Tc 2
Tc 3
Tc 4
Tc 5
Tc 6
Tc 7
Tc 8
Tc 9
Tc 10
Tc 11
Tc 12
D AT 6 02 1
N ° 2
D AT 6 02 1
N ° 3
P LC
D ig ital I/O