ADLINK PCI-6308 Series Isolated Analog Output Card Configuration and Programming

ADLINK PCI-6308 Series Isolated Analog Output Card Configuration and Programming Guide

In applications such as industrial process control, servo drive, sensor simulation, and testing equipment calibration, high-precision, multi-channel isolated analog output is a key link in building reliable systems. The ADLINK PCI-6308 series isolated analog output card (including PCI-6308V, PCI-6308A, and PCI-6304V) provides 12 bit resolution, up to 8-channel voltage or current output, and is equipped with 3750Vrms isolation protection, which can effectively block on-site interference and common mode voltage, ensuring host safety. Among them, PCI-6308A integrates 8 voltage current converters, which can be software switched between 0~20mA, 4~20mA, and 5~25mA outputs, meeting the requirements of transmitter simulation and actuator driving. This article will systematically explain the deployment and programming points of the PCI-6308 series from hardware selection, jumper configuration, register programming to software development library applications, helping engineers quickly build high reliability analog output systems.

Product Family and Core Features

The PCI-6308 series includes three models:

PCI-6308V: 8-channel voltage output (± 10V, 0-10V or user-defined), suitable for general voltage type actuator control.

PCI-6308A: 8-channel voltage output+8-channel current output (0~20mA/4~20mA/5~25mA), implemented through an onboard XTR110 converter, with voltage and current channels corresponding one-to-one, suitable for driving current type instruments or valves.

PCI-6304V: 4-channel voltage output, simplified version, suitable for scenarios with low channel requirements.

All models offer:

4-channel isolated digital input (2500Vrms, withstand voltage 34V)

4-channel isolated digital output (open collector electrode, 50mA/35V)

Onboard DC-DC isolated power supply, capable of providing ± 15V (200mA) auxiliary power for external sensors

Half length PCI size, supporting+3.3V and+5V PCI buses (starting from 0A5 version)

Power on reset output to zero (0V/0mA) to ensure safe startup

The isolation design completely separates the PC ground from the on-site equipment, greatly improving anti-interference ability and suitable for harsh industrial environments.

Hardware installation and jumper configuration

2.1 Unpacking and Anti static Treatment

PCI-6308 is an electrostatic sensitive device. Disassembly and installation must be carried out on an anti-static workbench, and a grounded wrist strap must be worn. Check for physical damage to the board and confirm that all accessories (board, CD, manual) are complete.

2.2 Jumper settings

JP1~JP12 jumpers are distributed on the board to configure the output range and reference voltage source of each channel.

Jumper group function

JP1~JP8 correspond to CHO~CH7 respectively, set the output mode (bipolar or unipolar)

Mode switching of JP9~JP10 grouping settings (JP9 controls CHO~CH3, JP10 controls CH4~CH7)

JP11~JP12 Select reference voltage source (internal 10V or external input)

Three typical configurations:

± 10V Bipolar Output (default): JP1~JP8 are placed in 1-2 (Bipolar), JP9/JP10 are placed in 1-2, JP11/JP12 are placed in 1-2 (internal reference).

0~10V unipolar output: JP1~JP8 are placed in 2-3 (Unipolar), JP9/JP10 are placed in 2-3, and the reference is still internal.

0~Vuser custom output: JP1~JP8 are placed in 2-3, JP9/JP10 are placed in 2-3, JP11/JP12 are placed in 2-3 (external reference), and an external reference voltage (within 0~10V) is connected from Pin6 of CN1.

The jumper setting needs to be operated under power-off and takes effect after power on.

2.3 Inserting into PCI slot

Select any available PCI slot, insert the board smoothly, ensure that the gold fingers are fully in contact, and secure the baffle with screws. After the system is turned on, Windows Plug and Play will recognize the new device and follow the prompts to install the driver (using the ADLINK All in One CD).

2.4 External connector (CN1, DB-37 female head)

Pin definitions can be found in the manual, and key signals include:

V0-V7: Voltage output

A0~A7: Current output (only PCI-6308A)

ExtVref: External reference voltage input

± 15V: Isolated auxiliary power output (can supply power to external transmitters)

DI0~DI3: Digital input

DO0~DO3: Digital output

AGND, DIGND, DOGND: Grounds for each circuit

Recommend using ADLINK matching terminal board (ACLD-9137/9188 or DIN-37D) to simplify wiring.

Register Mapping and Low Level Programming

PCI-6308 adopts PCI-9052 bridge chip, and the system BIOS automatically assigns I/O base addresses. The base address can be read by offsetting the PCI configuration space by 18h. The onboard registers are all 16 bits, and the address offsets are as follows:

Offset (hexadecimal) write operation read operation

0x00~0x0E DA channel 3~0~7~4 data DA transmission status (only 0x00)

0x10~0x3E Reserved Reserved

0x40 digital output digital input (including DO read back)

3.1 DA output register (offset 0x00~0x0E)

Each channel occupies 2 bytes and writes the analog value corresponding to 12 bits of data (0~4095). Note that the data format is unsigned binary and corresponds to the output range: