Specifications

Operation

3.6 Using Trigger Input and Output

It is possible to trigger external devices and to send start/stop signals to the

wave generators with the digital I/O lines of the E-517. See

"Digital In/Out

Socket"

(p. 71) for the lines and pinout. With the E-517, there is a fixed

one-to-one assignment of axes to digital output and input lines. This means

that:

■ With E-517.i1 models only the DIO_O1 and DIO_I1 lines are

available

■ If axes / channels are deactivated (see "Configure Axes and

Channels" in the E-517 User Manual for details), only the output and

input lines of the active axes are available

You can ask for the available lines with the TIO? command.

You can program the DIO_O1 to DIO_O3 output lines (TTL, active high) to

trigger other devices. Programming can be done using the CTO command.

If the trigger output is to be synchronized with the wave generator output,

you can use CTO in combination with

■ TWS which defines trigger action for certain waveform points

■ Certain WGO options which start the wave generator and the

corresponding trigger output

See "Configuring Trigger Output" and "Trigger Output Synchronized with

Wave Generator" in the E-517 User Manual for examples.

The DIO_I1 to DIO_I3 input lines (TTL, active high) can be used in

conjunction with the WGO command to start and synchronize the wave

generator output. See "Wave Generator Started by Trigger Input" in the

E-517 User Manual for an example.