Industrial Shields Raspberry PLC 19R+, Quick User Manual

Page: 28 / 53

Rev. 8: 29-04-2021
27
0 Zone connection (Communications)
SS: Chip Select pins. These pins can act as TTL, so they can work for the Chip Select pin of any device.
Right Side Left Side
Base
(common unit)
0 Zone
P
LC
C
onnec
tor
R
a
s
p
b
e
rr
y
P
in
Fun
c
tion
A+
B-
GND
B-
A+
GND
SDA
SCL
5V
3.3V
GND
GPIO25
5V
GND
SCK
SI
SO
NC
RX
TX
Vdc
GND
-
-
-
-
-
-
GPIO2
GPIO3
-
-
-
GPIO25
-
-
GPIO11
GPIO10
GPIO9
-
GPIO15
GPIO14
-
-
RS485(2)
RS485(2)
GND
RS485(1)
RS485(2)
GND
I2C
I2C
Power Supply
Power Supply
GND
RASPBERRY Pin
Power Supply
GND
SPI/SS
SPI/SS
SPI/SS
Not Connected
RX
TX
Power Supply
GND
Communication Pins
Power supply connectors
(24Vdc
– GND)