User Manual
E727T0005, valid for E-727
BRO, 2019-06-28
Physik Instrumente (PI) GmbH & Co. KG, Auf der Roemerstrasse 1, 76228 Karlsruhe, Germany
Page 84 / 240
Phone +49 721 4846-0, Fax +49 721 4846-1019, Email
Example—Polarity Setting
It is possible to select the signal polarity (active high = 1, default / active low = 0) for the digital
output line which is to be used for trigger output.
The following parameter must be set for the digital output line (<TrigOutID>):
Polarity (<CTOPam> = 7)
General notation of the CTO command for polarity selection:
Command mnemonic Trigger mode selection
CTO
<TrigOutID> 7
pol.code
Instead of using the CTO command, you can also set the value of the corresponding parameter
with SPA or SEP, see “Configuring Trigger Output” (p. 69) for a parameter list.
Example: The signal polarity for the digital output line 1 is to be set to "active low". Send:
CTO 1 7 0
Examples—"TriggerOutAND" and "TriggerOutOR" Modes
With the "TriggerOutAND" and "TriggerOutOR" trigger modes, the signal states of multiple digital
output lines are combined by a logical operation, and the result is written to another trigger line. A
bit-mapped mask selects the digital output lines whose signal states are to be logically combined.
The mask can be specified in hex or decimal format.
Bit-mapped mask values of the digital output lines:
Digital output line
Bit
Value in hex format Value in decimal format
Digital Out 1
0
0x1
1
Digital Out 2
1
0x2
2
Digital Out 3
2
0x4
4
The following parameters must be set for the digital output line which is to be used for trigger
output (<TrigOutID>):
TriggerMode (<CTOPam> = 3)
TriggerOutMask (<CTOPam> = 16)
General notation of the CTO command for the TriggerOutAND mode:
Command mnemonic
Trigger mode selection
Axis selection
CTO
<TrigOutID> 3 14
<TrigOutID> 16
TriggerOutMask
General notation of the CTO command for the TriggerOutOR mode:
Command mnemonic
Trigger mode selection
Axis selection
CTO
<TrigOutID> 3 15
<TrigOutID> 16
TriggerOutMask
Instead of using the CTO command, you can also set the values of the corresponding parameters
with SPA or SEP, see “Configuring Trigger Output” (p. 69) for a parameter list.