Getting Started 19Chapter 1
Figure 1-6 shows some examples of single- and multiple-module swi tchbox
arrangements.For the multiple-module switchbox (top figure), the cha nnel
address (channel_list) has the form (@ccnn) where cc = card number and
nn = channel number. For example, channel 45 on card number 02 is
addressed by (@245).
The multiple- and single-module switchbox (bottom figure), has two
switchboxes: a multiple-module switchbox at logical addre ss 120 and a
single-module switchbox at address 48. The single-module swi tchbox has
channel addresses of the form (@1nn). Its card number is 1.
Figure 1-6. Typical Switchbox Arrangements
Channel Addresses: 1nn, 2nn, 3nn, etc. where
nn is the channel n u mber
Channel Addresses: 1nn, 2nn, 3nn, 4nn, 5nn, etc. where
05
MULTIPLE- and SINGLE-MODULE SWITCHBOXES
MULTIPLE-MODULE SWITCHBOX
Card Number
Multimeter Laddr=24
Command Module
Switch Laddr=121
Switch Laddr=120
01 02
Card Number
Switch Laddr=124
Switch Laddr=121
Switch Laddr=122
Switch Laddr=123
Switch Laddr=120
Command Module
0201 03 04
(Valid Numbers = 01-99)
nn is the channel number
Switch Laddr=48
Switch Laddr=122
03
(Valid Numbers = 01-99)