User manual

Getting Started 31Chapter 1
Multiplexer Card
Numbers
The multiplexer card number identifies the module within a switchbox or
scanning multimeter configuration. The card number assigned depends on
the configuration. Leading zeroes can be ignored for the card number.
Switchbox Configuration. In a single-module switchbox configuration, the
card number is always 01. In a multiple-module switchbox configuration,
multiplexer modules are set to successive logical addresses. The
multiplexer module with the lowest logical address is always card number
01. The card number with the next successive logical address is 02, etc..
See Figure 1-14 for card numbers and logical addresses of a typical
multiple-module switchbox configuration.
Scanning Multimeter Configuration. In a multiple-module scanning
multimeter configuration, modules are assigned successive logical
addresses beginning with the multimeter. The multimeter module is always
card number 00, the multiplexer module with the next lowest logical address
is always card number 01, the next successive logical address is card
number 02, etc. See Figure 1-15 for card numbers and logical addresses

of a typical multiple-module scanning multimeter configuration.
Figure 1-14. Card Numbers in a Multiple-Module Switchbox
order is not required, but is recommended.
Note: Physical placement of the Module in the Logical Address
Multiple-Module Switchbox Card Numbers
Command
Module
Logical Address = 114
Multiplexer Module
Card Number 03
2
1
8
4
1
6
3
2
1
2
8
6
4
Multiplexer Module
Logical Address = 113
Secondary Address = 14
Logical Address = 112
Multiplexer Module
Card Number 02
Card Number 01
2
2
1
1
8
4
1
6
3
2
8
4
1
6
3
2
1
2
8
6
4
1
2
8
6
4