I-o-display-systems Basic I/O Product Manuel d'utilisateur télécharger pdf (Page 74)

Setup 3

3-1(Vol.2)

Chassis Setup

Figure 3-17 Connectors, Switches, and Indicators

During the setup phase of a BASIC I/O AD system, the chassis is given specific values for

unit address, analog/ digital separator, network baud rate, and protocol pass type. A

momentary pushbutton and seven segment display provide access to these parameters. Figure

3-17 shows the location of these components labeled setup pushbutton and sequential display.

Function addresses:

Each host instruction includes an address made up of two hexadecimal characters (00h-FFh).

At any BASIC I/O AD network connection 3 different types of functions can be performed,

each with its own unique system -wide function address. There are two BASIC I/O AD

addressing modes, offset and variable.

Offset Mode

Units are shipped in the offset mode where only master init control address needs be set (with

a range of 00h-3Fh). The remaining function addresses are automatically calculated and set

based on master address.

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I-o-display-systems Basic I/O Product Manuel d'utilisateur Page 74