Ref.IS.AB20AN.HF+
Rev.0: 30-08-19
31
o
Relay Outputs: From R1 to R6. If using I2C R5 is disabled. R7 and R8 are disabled from
the TOP ZONE switch.
o
Analog Outputs: A0.0 & A0.1 if RS-485 is working in Half Duplex. They are disabled if
using RS-485 Full-Duplex, see the JUMPER ZONE 1 from above.
12.
Ardbox - Arduino I/Os 5V pins
The Ardbox has some of the Leonardo board pins available. These pins can be programmed
according to Arduino features such as I/Os operating at 5V or any additional features present
in the pins (for example I2C communication in pins SCL and SDA). As this pins are directly
connected to the Arduino Leonardo board they are not as well protect as the normal inputs.
These pins are mainly meant to be used as prototyping.
*IMPORTANT:
Do not connect the terminals in the chart above to voltages higher than 5V.
These terminals provide direct access to the Leonardo board.
A part from the switch configuration there are some special conditions depending on these 5V.
Now it is going to be shown the considerations to operate with these pins.
I2C pins – SDA/SCL
12.1
The I2C protocol is meant to work in a pull-up configuration. The I2C pins in the Arduino
Leonardo are not pull-up, so in order to work with the I2C an external pull-up resistor is
required. If it is meant to work as a GPIO at 5V, the switches must be set as I2C, (section 8).
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.
Pin 2/Pin 3
12.1
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
Ardbox terminal
Arduino pin
SCL
– Pin 3
3
SDA
– Pin 2
2
MISO
14
SCK
15
MOSI
16
Summary of Contents for PLC ARDUINO ARDBOX 20 I/Os
Page 1: ...PLC ARDUINO ARDBOX 20 I Os RELAY HF PLUS MODBUS PLC ARDUINO ARDBOX 20 I Os RELAY HF PLUS...
Page 2: ...Ref IS AB20AN HF Rev 0 30 08 19 1...
Page 11: ...Ref IS AB20AN HF Rev 0 30 08 19 10 18 Revision Table 44...
Page 34: ...Ref IS AB20AN HF Rev 0 30 08 19 33 PWM Waveform Analog Out Turn on Analog Out Turn off...
Page 35: ...Ref IS AB20AN HF Rev 0 30 08 19 34 Analog Digital Input Turn on Analog Digital Input Turn off...
Page 36: ...Ref IS AB20AN HF Rev 0 30 08 19 35 14 Typical Connections...
Page 37: ...Ref IS AB20AN HF Rev 0 30 08 19 36...
Page 38: ...Ref IS AB20AN HF Rev 0 30 08 19 37...
Page 39: ...Ref IS AB20AN HF Rev 0 30 08 19 38...
Page 41: ...Ref IS AB20AN HF Rev 0 30 08 19 40 16 ARDBOX Family Dimensions 45mm width DIN rail mounting...
