ADLINK PCI-6308 Isolation Output Card Programming and Installation

3.3 Detailed explanation of jumper settings (key)

Each voltage output channel of PCI-6308 can be independently configured with output range and reference source, corresponding to the following jumper groups:

Channel mode jumper (single/double pole) reference source jumper (internal/external)

CHO~CH3 JP1~JP8 correspond to JP9 and JP11 respectively (shared)

CH4~CH7 are the same as JP10 and JP12

Output range setting (refer to Table 2-3):

± 10V Bipolar (default): JP1~JP8 are set to "Bipolar" (jumper cap connecting pins 1-2), JP9/JP10 are set to "Bipolar", JP11/JP12 are set to "Internal" (internal 10V precision reference REF102).

0~+10V unipolar: JP1~JP8 are set to "Unipolar", JP9/JP10 are set to "Unipolar", and JP11/JP12 are still set to "Internal".

0~Custom voltage (0 to Vuser): Set JP1~JP8 as "Unipolar", JP9/JP10 as "Unipolar", JP11/JP12 as "External", and connect an external reference voltage (up to ± 15V) from pin 6 (ExtVref) of CN1. At this point, output the external reference voltage value corresponding to the full range.

Important reminder: Changing jumper wires must be done in a power-off state; The reference source and polarity of the same channel need to be matched. For example, although the combination of external reference and bipolar is physically feasible, it has no practical significance. It is recommended to strictly configure according to the table.

Definition of connector pins and wiring specifications

CN1 is a 37 core D-Sub female socket, and the key pins are defined as follows (see Table 2-1 in the manual for details):

V0-V7 (pins 1-8): Voltage output of each channel;

A0~A7 (pins 9~16): Current output (only valid for PCI-6308A);

AGND (pins 17-19): analog ground;

+15V (pin 7? Actual inspection - pay attention to the pin numbers in the manual, but to avoid miscitation, it is recommended to directly refer to Figure 2-3, which is not listed here in its entirety.

-15V (pin 25), ExtVref (pin 6), DI0~DI3，DO0~DO3，DIGND，DOGND。

Attention to wiring:

The voltage output is a low impedance source that can be directly connected to high impedance loads (such as PLC analog inputs), but avoid short circuiting to ground or power, otherwise it may damage the operational amplifier;

The current output (PCI-6308A) is a current source, and the load should be connected between An and AGND. The maximum load resistance should meet the requirement of R_load ≤ (V_supply-2V)/20mA (for example, when powered by 24V, the maximum load is about 1.1k Ω);

The digital output is an open collector and must be connected to an external power source (maximum 35V) with a pull-up resistor. When the output is low, a current is injected, and a current diode is connected to drive the relay;

Digital input can accept NPN/PNP sensors, pay attention to the polarity of DI and DIGND, and input high level ≥ 3.2V.

Windows System Driver Installation and Device Recognition

PCI-6308 adopts a standard PnP controller, which automatically assigns I/O base addresses and interrupts after system startup. At first installation:

Insert the ADLINK full-featured CD into the optical drive, or download the latest PCIS-DASK driver package from the official website;

After Windows discovers new hardware, select "Install in specified location" and point to the " PCI-6308 Driver" directory on the CD;

After completing the driver installation, resources (I/O range IRQ）；

If you need to use software packages such as LabVIEW, HP VEE, DASYLab, InTouch, ISaGRAF, OPC, etc., you need to install the corresponding additional drivers from the CD (some require authorization codes, but provide a 2-hour trial mode).

Note: PCIS-DASK provides DLL dynamic libraries and supports Windows 98/NT/2000/XP (later systems can run in compatibility mode). All applications can be cross version compatible without modification.

Detailed explanation of underlying programming interfaces (C/C++library)

For applications that require custom firmware or high-performance control, ADLINK provides a fully functional C language library (DOS and Windows 95 DLLs, but PCIS-DASK also includes these APIs). The following focuses on the core functions and usage points. All function names follow the _6308_ action format and the Windows version prefix W_.

6.1 Initialization and Reset

_6308_Initial (U16 * existCards, PCI_INFO * pciInfo): must be called before any operation. It is used to enumerate the number of board cards and obtain PCI information, and return the card number for subsequent calls.

_6308_Software2Reset (U16 cardNo): Soft reset I/O configuration, does not change jumper hardware settings, resets D/A output to zero (0V/0mA), and clears digital output to zero.

6.2 Single channel analog output

_6308-DA (cardNo, chn, DAData): Write 12 bit data (0~4095) to the specified channel. According to the jumper configuration, the mapping relationship is as follows:

± 10V mode: 0 → -10V, 2048 → 0V, 4095 →+9.9997V;

0~10V mode: 0 → 0V, 4095 →+9.9997V;

External reference mode: 0 → 0V, 4095 →+User.

Key constraint: DA conversion adopts serial loading, and each data write requires approximately 13.96 μ s of transmission time. During this period, the status register "Data_Send" is set to 1, and the software must poll _6308_Set_Status() until it returns 0 before sending the next data. Ignoring this step will result in output confusion.