PI E-871.1A1N, User Manual, Page: 78 / 226

Send:
CTO 1 2 1
CTO 1 3 0
CTO 1 1 0.0001
CTO 1 8 0.00055
CTO 1 9 0.0002
TRO 1 1
Setting Up "On Target" Trigger Mode
In the On Target trigger mode the on-target state of the axis selected is output at the selected
trigger output.
1. Configure the digital output line <TrigOutID> to be used as trigger output:
a) Send CTO <TrigOutID> 2 A where A indicates the axis to be moved.
b) Send
CTO <TrigOutID> 3 2
, where 2 specifies the On Target trigger mode.
2. If you want to enable the conditions for trigger output, send TRO <TrigOutID> 1 .
Example: The on-target state of axis 1 is to be output on digital output line 1.
Send:
CTO 1 2 1
CTO 1 3 2
TRO 1 1
Setting Up "Motion Error" Trigger Mode
In the In Motion trigger mode, the motion state of the selected axis is output at the selected
trigger output. The line is active, as long as the selected axis is in motion.
1. Configure the digital output line <TrigOutID> to be used as trigger output:
a) Send CTO <TrigOutID> 2 A where A indicates the axis to be moved.
b) Send CTO <TrigOutID> 3 6 , where 6 specifies the In Motion trigger mode.
2. If you want to enable the conditions for trigger output, send TRO <TrigOutID> 1 .
Example: Digital output 1 is to be active when axis 1 of the mechanics is in motion.
Send:
CTO 1 2 1
CTO 1 3 6
TRO 1 1
Setting Up "POffset" Trigger Mode
The POffset trigger mode lends itself to scanning applications. The first trigger pulse
is output when the axis has reached a specified position (TriggerPosition). The next trigger
pulses are output respectively when the axis position equals the sum of the last valid trigger
position and a specified distance (TriggerStep). The trigger output is stopped when a stop
value is reached. The polarity sign of the distance value determines the direction of motion
in which trigger pulses are to be output.
The pulse width is one servo cycle. The unit for TriggerPosition, TriggerStep, and the stop
value depends on the settings for the Numerator Of The Counts-Per-Physical-Unit Factor
parameter (0xE) and the Denominator Of The Counts-Per-Physical-Unit Factor parameter
(0xF). Default is mm.
1. Configure the digital output line <TrigOutID> to be used as trigger output:
a) Send CTO <TrigOutID> 2 A where A indicates the axis to be moved.
b) Send
CTO <TrigOutID> 3 7
, where 7 determines the POffset trigger mode.
c) Send CTO <TrigOutID> 1 S , where S indicates the distance.
8 E-871.1A1N FUNCTIONS PZ285EN
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1/30/2019
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