CHAPTER 3: Getting Started

1 2 3 4 5 6 7 8

OPEN

Controller Mode

1 2 3 4 5 6 7 8

OPEN

Peripheral Mode

Switch

Side

View

DOT

Figure 3-10. Switch SW2: Selecting the Mode.

3.6 Selecting the IEEE Address

SW3-1 through SW3-5 select the IEEE bus address of the interface converter when in the IEEE Peripheral mode. These same switches are used in the IEEE Controller mode to select the address of the device that will be controlled. [Refer to Chapters 5 and 4 respectively for additional information]. The address is selected by simple binary weighting, with SW3-1 being the least significant bit and SW3-5 the most significant. The factory default is address 10.

Listen Only is a special type of Peripheral operation. In the Listen Only mode the interface converter accepts all data transmitted on the bus, ignoring any bus addressing, and transfers it out its serial port. The interface converter is set to Listen Only mode by setting its address to 31. If the IEEE address is set to 31 in the peripheral mode, it is adjusted to 30.

0

1

1

2

3

4

5

6

7

8

Switch

Side

View

OPEN

0 x 16

-0

1 x 8

-8

0 x 4

-0

1 x 2

-2

0 x 1

+ -0

IEEE Address = 10

DOT

Figure 3-11. Switch SW3: Selecting the IEEE Address.

23

Page 23
Image 23
Black Box IC026AE-R2, IC026A-R2 manual Selecting the Ieee Address, Switch SW2 Selecting the Mode