EVAL-CN0418-ARDZ Shield Overview

The circuit shown in Figure 1 provides a complete, fully isolated and highly flexible, 4-channel analog output system suitable for programmable logic controllers (PLCs) and distributed control system (DCS) applications that require ±5 V, ±10 V voltage and 4 mA to 20 mA current output with HART-compatibility. All outputs are protected from transients and are suitable for the most harsh industrial environments.

The HART compatibility of this module provides a complete field communications solution that is simple to use, low cost, and extremely reliable.

The circuit is powered from a standard 24 V bus supply, with on-board filtering and protection circuitry. Because many factories and industrial environments power their PLC/DCS from a 24 V standard bus line, this module is easy to integrate into any existing system. This module can also be powered from other standard supplies, starting from 12 VDC to 28 VDC

This user guide will discuss how to use the EVAL-EVAL-ADICUP3029 and evaluation software to configure and collect data from the EVAL-CN0418-ARDZ Evaluation Board (CN-0418 Board).

https://media.githubusercontent.com/media/analogdevicesinc/system-level/main/docs/solutions/reference-designs/eval-adicup3029/images/cn0418_board_images_rev_b.png

EVAL-CN0418-ARDZ attached to EVAL-ADICUP3029

https://media.githubusercontent.com/media/analogdevicesinc/system-level/main/docs/solutions/reference-designs/eval-adicup3029/images/cn0418_crop.jpg

Simplified functional block diagram

https://media.githubusercontent.com/media/analogdevicesinc/system-level/main/docs/solutions/reference-designs/eval-adicup3029/images/latest_functional_block_diagram.png

General Setup

Equipment

  • EVAL-CN0418-ARDZ Evaluation Board

  • EVAL-ADICUP3029 Base Board

  • PC with a USB port and Windows 7 (32-bit) or higher

  • Serial Terminal Software (Putty/TeraTerm or similar)

  • DC Power Supply (+12 V to +24 V / 1 A) or equivalent bench supply (optional)

  • Precision voltage and current source (for output measurement)

  • USB type A to micro USB type A cable

  • CN0418 Evaluation Software

https://media.githubusercontent.com/media/analogdevicesinc/system-level/main/docs/solutions/reference-designs/eval-adicup3029/images/board_set_up_of_cn0418_and_adicup3029.png

  • The EVAL-CN0418-ARDZ (CN-0418 Board) connects to the EVAL-ADICUP3029 (ADICUP3029 Board)

  • The EVAL-ADICUP3029 (ADICUP3029 Board) connects to the PC via the USB cable.

  • Terminal block P1 is the power supply input (input:+24V DC)

  • Terminal blocks P6 provide the quad channel voltage output (-10V to +10V), and Current output (0mA to 24mA) and standard 4 mA to 20 mA HART compatible current inputs.

Power Supply Considerations and Configuration (P1)

Terminal block P17 is the power supply input (input range:+12V to +36V DC). The EARTH terminal can be connected to an external earth connection, to the GND terminal or left floating if an external earth connection is not used. The Green power LED should lit up when connected to a power supply.

power_led_and_connector.png

Default Shunt Jumper (P9 and P10) and DIP Switches (S3 and S4) Configuration

The default jumper position for P9 and P10 are shorted at position 1 and 2 while the two DIP switches S3 and S4 should be in ON state switch position.

image1

P9 jumper connections for HART enable (EN) control

P10 jumper connections for Chip select (SYNC) control

Single board

If only a single board is used, then connect jumpers P9 and P10 as shown in the table below.

Position

Description

Mode

Position

Description

Mode

pin 1 & pin 2 image6

skip decoder

singleimage7

pin 1 & pin 2 image8

skip decoder

single image9

Multi board

If more than one board is stacked (up to 4), then each board must be set to a different DAC and HART select address. Connect jumpers P9 and P10 as shown in the table below, and ensure that the software is configured accordingly. On a given board, set the DAC and HART address to the same position. If necessary, the software can be changed to address differently the DAC and HART on a given board.

Position

Description

Mode

Position

Description

Mode

pin 4 & pin 6 image26

AIN2:AIN3 = 00

multipleimage27

pin 4 & pin 6image28

AIN0:AIN1 = 00

multiple image29

pin 3 & pin 5 image30

AIN2:AIN3 = 01

multiple image31

pin 3 & pin 5image32

AIN0:AIN1 = 01

multiple image33

pin 7 & pin 5 image34

AIN2:AIN3 = 10

multiple image35

pin 7 & pin 5image36

AIN0:AIN1 = 10

multiple image37

pin 8 & pin 6 image38

AIN2:AIN3 = 11

multiple image39

pin 8 & pin 6image40

AIN0:AIN1 = 11

multiple image41

Default EEPROM Address configuration of Solder Jumper position JP2, JP3 and JP4

EEPROM default address configuration of the board is “000” you can configure the EEPROM I2C address from 000 to 111.

https://media.githubusercontent.com/media/analogdevicesinc/system-level/main/docs/solutions/reference-designs/eval-adicup3029/images/eeprom_default_address.png

Default EEPROM WP ( Write Protect) mode configuration of Solder Jumper JP1

EEPROM WP pin can be configured as single or multi board operation. The default connection of WP pin is shorted to GND.

https://media.githubusercontent.com/media/analogdevicesinc/system-level/main/docs/solutions/reference-designs/eval-adicup3029/images/eeprom_wp_mode.png

JP1 soldering position

Position

Description

pin 2 & pin 3 image46

enable write protection (WP) (single board operation by default) image47

pin 2 & pin 1 image48

control write protection (WP) (multi board operation) image49

16 bit Voltage and Current Analog Output Connection (P6)

https://media.githubusercontent.com/media/analogdevicesinc/system-level/main/docs/solutions/reference-designs/eval-adicup3029/images/cn0418_output_terminals.png

Peripheral Connectors

All connector pinouts for the EVAL-CN0418-ARDZ are described in the table below.

Connector

Pin No.

Pin Name

ADuCM3029 Pin Function

CN0418 Pin Function

Arduino DIO High

1

SCL

I2C0_SCL/GPIO04

SCL (EEPROM)

2

SDA

I2C0_SDA/GPIO05

SDA (EEPROM)

3

AREF

VREF+

NC

4

AGND

AGND (Analog ground)

DGND

5

SCLK

SPI0_CLK/SPT0_BCLK/GPIO00

DAC_SCLK (AD5755-1)

6

MISO

SPI0_MISO/SPT0_BD0/GPIO02

DAC_MISO_BUFF (AD5755-1)

7

MOSI

SPI0_MOSI/SPT0_BFS/GPIO01

DAC_MOSI (AD5755-1)

8

CS

SPI0_CS1/SYS_CLKIN/SPI1_CS3/GPIO26

DAC_SYNC(AD5755-1)

9

RDY

SPI0_RDY/GPIO30

HART_MULT_A0(AD5700-1)

10

IO28

GPIO28

HART_MUL_A1(AD5700-1)

Arduino DIO Low

1

IO08

BPR0_TONE_N/GPIO08

DAC_FAULT(AD5755-1)

2

IO27

TMR1_OUT/GPIO27

AD5700_RTS (AD5700-1)

3

IO33

XINT0_WAKE3/TMR2_OUT/GPIO33

AD5700_CD_BUFF(AD5700-1)

4

IO09

BPR0_TONE_P/SPI2_CS1/GPIO09

SW_TXD (AD5700-1)

5

IO13

XINT0_WAKE2/GPIO13

HW RXD (AD5700-1)

6

IO15

XINT0_WAKE0/GPIO15

NC

7

TX

UART0_TX/GPIO10

NC

8

RX

UART0_RX/GPIO11

NC

Arduino Analog

1

AIN0

ADC0_VIN0/GPIO35

HART_COM_A0

2

AIN1

ADC0_VIN1/GPIO36

HART_COM_A1

3

AIN2

ADC0_VIN2/GPIO37

DAC_COM_A0

4

AIN3

ADC0_VIN3/GPIO38

DAC_COM_A1

5

AIN4

ADC0_VIN4/SPI2_CS3/GPIO39

NC

6

AIN5

ADC0_VIN5/SPI0_CS2/GPIO40

NC

Arduino Power

1

NC

  • not connected -

NC

2

IOREF

+3.3V

IO_VREF (+3V3)

3

RESET

SYS_HWRST_N

NC

4

3.3V

+3.3V

NC

5

5V

+5V

5V

6

GND

DGND (Digital Ground)

GND

7

GND

DGND (Digital Ground)

GND

8

Vin

DC Barrel Jack Power +7V to +12V

+7.5V

Advanced Setup

Up to four EVAL-CN0418-ARDZ boards can be controlled by a single Arduino or EVAL-ADICUP3029 base board by using a simple control scheme. This control scheme will control the SYNC, CD and RX signals to avoid a data conflict.

Schematic, PCB Layout, Bill of Materials

Download

EVAL-CN0418-ARDZ Design & Integration Files

  • Schematics

  • PCB Layout

  • Bill of Materials

  • Allegro Project

Software

Registration

Tip

Receive software update notifications, documentation updates, view the latest videos, and more when you register your hardware. Register to receive all these great benefits and more!

End of Document