Digital Input; Analog Input - Phoenix Contact SCK-C-MODBUS User Manual

Solarcheck family
20
PHOENIX CONTACT
3.2.2

Digital input

NOTE: Risk of material damage due to incorrect wiring
The digital signal input may not be wired to an active signal.
Wire floating contacts of, e.g., door contacts or remote indication contacts of surge protec-
tion elements directly to digital input D_IN.
The state of the switch contact is set as a bit in the communication module and can be read
by a controller.
P TX
SCK BUS
D_IN
Figure 3-4 Digital input
The refresh time for this status monitoring depends on the SCK-internal communication
loop. For additional information, please refer to "SCK-internal communication cycle" on
page 33.
3.2.3

Analog input

The analog input is designed for analog 0 ... 10 V standard signals. Incoming 0 ... 10 V sig-
nals are stored as a 16-digit INT value.
Using the analog connection for devices in the Solarcheck device range
The 2 ... 10 V analog output of the voltage measuring module can be connected to the an-
alog 0 ... 10 V input of the 8-channel current measuring module. Use of this function is op-
tional. Due to the live zero point of the output, cable break detection is integrated automati-
cally ("live zero"). Output P_OUT is designed specifically for connection of the SCK-M-U-
1500V voltage measuring module (Order No. 2903591). The maximum distance between
current and voltage measuring modules is 0.5 m.
The value range is defined as -2000 ... 12000 (for -2 ... 12 V). For further details on voltage
measurement, refer to Section 5.2.
L– / L+
VAL-MS...
FM
14 12 11
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