Starting up the device - Analog output
Leuze electronic GmbH + Co. KG
CML 730i
77
General prerequisites:
• The measuring light curtain has been mounted (see chapter 6) and connected (see chapter 7) cor
-
rectly.
• The measuring light curtain is connected to a PC via an IO-Link USB master (see chapter 16).
•
Sensor Studio
(incl. device-specific IODD file) is installed on the PC (see chapter 16).
• The basic configuration has been performed (see chapter 8).
Open the
Sensor Studio
configuration software on the PC (see chapter 16).
Configure the following parameters:
- Smoothing (definition of a beam number for which no object detection is yet detected)
- Type of analog signal (off; or selection of defined voltage level or current level) (see chapter 9)
- Type of analog function (off; or FIB; FNIB; LIB; LNIB; TIB; TNIB) (see chapter 9)
- Characteristic curve configuration (start beam and end beam) (see chapter 9.3)
- Filter depth (definition of a minimum number of measurement cycles after which beam evaluation is
performed)
If necessary, configure additional parameter/process data with the aid of the process data table (see
Save the configuration in the CML 700i.
The CML 700i is ready for process mode.
9.3
Behavior of the analog output
The output logic of the CML 700i returns the output signals to the programmable logic control (PLC). On
interface X1, three pins can be assigned as output for the analog control of the PLC process interface.
The selected beam area (start beam/end beam) is mapped to the analog output of the CML 700i. The
conversion is by means of a 12-bit D/A converter, whereby the 12-bit value (4096) is divided by the
selected number of beams. The resulting values, mapped to the respective, configured analog values,
yield the characteristic curve. If there are only a few beams, this results in an erratic characteristic curve.
The configurations that are available in the IODD file via the
Sensor Studio
configuration soft
-
ware (see chapter 16) can, in part, also be performed via the receiver control panel. Both config
-
uration types are stored in non-volatile memory so that they are retained the next time the device
is switched on.
It is always the last set configurations which are active. If the last changes to the configuration
were made via the receiver control panel, any settings changed via, e.g., the control or PC are
overwritten.
The IO Device Description (IODD) can be used both with connected light curtain for direct con
-
figuration or without connected light curtain for creating device configurations.
The IODD file is supplied with the product CD. An updated version can also be downloaded from
the Internet at www.leuze.com.
The beams used for the measurement can be freely defined via the receiver control panel. It is
also possible to specify that only a part of the beam area be used for the measurement.
