NI 7330 and 7340 Timing Information

NI-Motion Functions

NI 7330 and 7340 Timing Information

The following table lists the execution time for selected functions, as well as for the different attributes of those functions, if applicable. Also included is timing information for axes or vector spaces, if both are supported with a given function.

Note  The times listed are benchmark times and are not a guarantee of function execution times on your system. Times do not take into account other operations, onboard programs, or other factors that slow performance.
Function Function Return Time (ms) using 1.47 GHz Processor Function Return Time (ms) using 700 MHz Processor
Load Target Position 1.1 1.2
Read Position 1.7 1.9
Read Motion I/O Data

Forward Limit Active

Reverse Limit Active

Forward Software Limit Active

Reverse Software Limit Active

Home Input Active

Inhibit-In Active

In-Position Active

Drive Ready Active

Inhibit-Out Active



1.3

1.3

1.4

1.4

1.6

1.6

1.6

1.6

1.6




1.4

1.4

1.5

1.5

1.7

1.7

1.7

1.7

1.7

Read I/O Port 1.3 1.4
Set I/O Port MOMO 1.1 1.2
Load Vector Space Position 1.1 1.2
Read Velocity

axis

vector




1.8

1.9




1.8

1.9

Read Velocity in RPM

axis

vector




2.0

2.1




2.1

2.2

Load Velocity

axis

vector




1.2

1.2




1.3

1.3

Load Velocity in RPM

axis

vector




2.7

2.8




2.8

2.9

Read Move Complete Status 0.1 0.2
Configure Vector Space 1.3 1.4
Check Move Complete Status 1.6 1.7
Check Blend Complete Status 1.4 1.5
Read Communication Status 0.1 0.2
Initialize Controller 607.1 607.1
Read Digital I/O Data

Output Active State

Input Active State

Output Active

Input Active

Configure As Input




1.4

1.4

1.4

1.4

1.4




1.5

1.5

1.5

1.5

1.5

Read Following Error 1.8 1.9

  An AMD Athlon 1.47 GHz PC with 256 MB of RAM was used for timing tests. Tests run in "above normal priority" execution to achieve the most accurate results.

  An Intel Pentium 3 700 MHz PC with 386 MB of RAM was used for timing tests. Tests run in "above normal priority" execution to achieve the most accurate results.