IBM Unpacking the CIO-DIO48H, Installing the software, Configuring the base address switch

CIO-DIO48H User's Guide Installing the CIO-DIO48H

Unpacking the CIO-DIO48H

As with any electronic device, you should take care while handling to avoid damage from static

electricity. Before removing the CIO-DIO48H from its packaging, ground yourself using a wrist strap or by simply touching the computer chassis or other grounded object to eliminate any stored static charge.

If any components are missing or damaged, notify Measurement Computing Corporation immediately by phone, fax, or e-mail:

ƒPhone: 508-946-5100 and follow the instructions for reaching Tech Support.

ƒFax: 508-946-9500 to the attention of Tech Support

ƒEmail: techsupport@mccdaq.com

Installing the software

Refer to the Quick Start Guide for instructions on installing the software on the Measurement Computing Data Acquisition Software CD. This booklet is available in PDF at www.mccdaq.com/PDFmanuals/DAQ-Software-Quick-Start.pdf.

Configuring the base address switch

The CIO-DIO48H employs the PC bus for power, communications and data transfer. It draws power from the PC, monitors the address lines and control signals, responds to its I/O address, and receives and places data on the eight data lines.

The CIO-DIO48H has one bank of base address-select switches. Verify their settings before installing the board in your computer.

Base address switch

The easiest way to set the base address is to let InstaCal show you the correct settings. However, if you are already familiar with setting ISA base addresses, you may use the base address switch description below to guide your base address selection.

The base address is the starting location that software writes to when communicating with the CIO-DIO48H. A set of DIP switches is used to set the base address. By placing the switch down, the CIO-DIO48H address decode logic is instructed to respond to that address bit. A complete address is constructed by calculating the HEX or decimal number which corresponds to all the address bits the board has been instructed to respond to.

The board is shipped with the base address set to 300 hex (see Figure 1). Unless there is already a board in your system that uses address 300 hex (768 decimal), leave the switches as they were set at the factory.

9	8	7	6	5	4	3	SW	HEX
							A9	200
							A8	100
							A7	80
							A6	40
ADDRESS							A5	20
							A4	10
							A3	08

Figure 1. Base address switch

In the default configuration, addresses 9 and 8 are down, and all others are up. Address 9 = 200 hex

(512 decimal), and address 8 = 100 hex (256 decimal). When added together they equal 300 hex (768 decimal).

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