BASIC commands
PROGRAMMING MANUAL 126
Revision 3.0
3.2.214 PSWITCH
/i
Bit Value Description
0 0 Failed configuration of I/O data exchange
1 I/O data exchange configured successfully
1 0 I/O data not available
1 I/O data available
2 0 Data exchange active in OPERATE mode
1 Data exchange active in CLEAR mode
Type I/O command
Syntax PSWITCH(switch, enable [ , axis, output_number, output_state,
set_position, reset_position ])
Description The PSWITCH command turns on an output when a predefined position is
reached, and turns off the output when a second position is reached. The
positions are specified as the measured absolute positions.
There are 16 position switches each of which can be assigned to any axis.
Each switch is assigned its own on and off positions and output number.
The command can be used with 2 or all 7 arguments. With only 2 arguments a
given switch can be disabled.
PSWITCHs are calculated on each servo cycle and the output result applied
to the hardware. The response time is therefore 1 servo cycle period approxi-
mately.
Note: An output may remain on if it was on when the PSWITCH was turned
off. The OP command can be used to turn off an output as follows:
PSWITCH(2,OFF) OP(14,OFF) ' Turn OFF pswitch controlling OP 14
Note: The physical switches that are used with PSWITCH are not fast hard-
ware switches, so switching is done by software, which can introduce some
small delays in operation. Fast hardware switching can be used only with axes
connected via the TJ1-FL02. Use the HW_PSWITCH command.
Arguments • switch
The switch number. Range: [0,15].
• enable
The switch enable. Range: [on, off].
• axis
The number of the axis providing the position input.
• output_number
The physical output to set. Range: [8,31].
• output_state
The state to output. Range: [on, off].
• set_position
The absolute position in user units at which output is set.
• reset_position
The absolute position in user units at which output is reset.
I52E-EN-03.book Seite 126 Freitag, 29. Juni 2007 11:55 11
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