Ref. IS.MDUINO.58+
Rev. 0: 30-08-2019
33
These pins are not stablished with a pull-up or a pull-down configuration. The state of these
pins is unknown. If these pins must be used, they require a pull-up or a pull-down
configuration. The Arduino board allows the pins to be set in a pull-up configuration. If not it
must be stablished an external pull-up or pull-down circuit in order to correctly work with
these pins.
9.3
Serial 1 – RX1/TX1
These pins are only referred to the inputs I1.5/I1.6. If the switch configuration is in OFF
position the pins RX1/TX1 will be available. If not using the Serial 1 interface these pins can
work as digital, either input or output.
These pins are not stablished with a pull-up or a pull-down configuration. The state of these
pins is unknown. If these pins must be used, they require a pull-up or a pull-down
configuration. The Arduino board allows the pins to be set in a pull-up configuration. If not it
must be stablished an external pull-up or pull-down circuit in order to correctly work with
these pins.
9.4
SPI – MISO/MOSI/SCK
These pins can only work as a 5V pins if the Ethernet protocol is not going to be used. As the
Ethernet protocol uses the SPI to communicate with the Arduino board, both behaviours
cannot happen at the same time as the Ethernet would not work.
These pins are not stablished with a pull-up or a pull-down configuration. The state of these
pins is unknown. If these pins must be used, they require a pull-up or a pull-down
configuration. The Arduino board allows the pins to be set in a pull-up configuration. If not it
must be stablished an external pull-up or pull-down circuit in order to correctly work with
these pins.
9.5
Pin 2/Pin 3
These pins are only referred to the inputs I0.5/I0.6. If the switch configuration is in OFF
position the pins Pin 2/Pin 3 will be available.
These pins are not stablished with a pull-up or a pull-down configuration. The state of these
pins is unknown. If these pins must be used, they require a pull-up or a pull-down
configuration. The Arduino board allows the pins to be set in a pull-up configuration. If not it
must be stablished an external pull-up or pull-down circuit in order to correctly work with
these pins.
Summary of Contents for M-DUINO PLC ARDUINO ETHERNET 58
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Page 3: ...Ref IS MDUINO 58 Rev 0 30 08 2019 2 Ethernet PLC MDuino 58 PLUS User Guide Revised August 2019...
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