Solartron Mobrey 3595 4C, Руководство пользователя

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3595 4C User Manual Part Two IMP Commands
35952350 (CH01/AA)
1-3
1.1 INTRODUCTION
This chapter provides information on the use of IMP commands, a summary of commands, a detailed
command directory, and suggested command procedures.
1.1.1 Command Strings
The following rules apply to command strings:
a. They must not contain more than 256 characters (bytes).
b. They may contain a number of individual commands, as long as they are separated by semicolons.
Commands are executed in order, left-to-right across the string, and responses are returned in order.
c. They must not contain unnecessary spaces or lower case characters.
d. If a command includes some binary-coded information, all bytes of this data must be included.
Omissions can cause both the command involved, and subsequent commands, to be misinterpreted.
1.1.2 IMP Command Types
Command strings are built from two basic command types:
General Commands - applicable to most IMP types
Specific Commands - applicable to a particular type of IMP. For example, the EV command applies
only to the digital and switch IMP devices.
Note: IMP addressing is dealt with in Part 1 of this manual.
1.1.3 Numbers in commands
The majority of commands require one or more numbers to further specify the command. For example, the
ME (measure) command must be specified with a channel number. Unless otherwise stated in the
command directory, these numbers are ASCII (keyboard) characters and not numeric variables.
1.1.4 Examples of command strings
A string of two or more commands may be sent by inserting semicolons between individual commands. On
receipt of a command string, the IMP executes each command in turn, left-to-right. Each command string
should not exceed 256 characters (bytes) in length, including semicolons.
As an example, the command sequence SE;TR provides a quick measurement set-up:
1.
On an IMP other than the Universal IMP ‘1H and ‘1J, it selects ‘volts dc auto-ranging’ (for analogue
versions) or ‘digital status’ (for digital and switch versions).
On the UIMP, it sets analogue channels 1 through 18 to ‘volts dc auto-ranging’ and digital channels 19
and 20 to ‘digital status’.
2.
It arms the IMP to make measurements.
3.
It tells the IMP to take a scan – that is, measure on all channels.
NOTE: Details of the Vibration IMP (VIMP) commands are given in the SI3595 1F&G VIMP
Programmer’s Manual (P/N: 35952200)