User`s manual

14 Getting Started Chapter 1
Programming the Multiplexer Module
The multiplexer modules are programmed either in a switchbox or scanning
voltmeter configuration. To program the multiplexer modules using the
Standard Commands for Programmable Instruments (SCPI), you must select
the controller language, interface address, and SCPI commands to be used.
See the 75000 Series B Installation and Getting Started Guide or the
E1406 Command Module Manual for interface addressing and controller
language information of multiplexer modules in a switchbox or scanning
voltmeter configuration. If using the E1300 Mainframe or E1405
Command Module, you MUST have version 06.00 (or greater)
firmware for the Multiplexer Modules to properly identify.
Note This discussion applies to SCPI programming. See Appendix B
(“16-Channel Relay Multiplexer Registers”) for details on multiplexer
modules registers.
Selecting Channels To address specific channels within a multiplexer module in a switchbox or
scanning voltmeter configuration, you must:
• send the appropriate SCPI command string to the switchbox or
scanning voltmeter (e.g.,
CLOSe, OPEN, etc.)
• specify the card number
• specify the channel number
Multiplexer Card
Numbers
The card number identifies the module within a switchbox or scanning
voltmeter configuration. The switch module with the lowest logical address
is always card number 01. The card number with the next successive logical
address is 02, and so on. Figure 1-2 illustrates the card number and logical
address of a typical single module switchbox.
Figure 1-2. Card Numbers for a Single Module Switchbox