Interface A2, Release Date: 02.03.2022
Page 28
LVMC User Manul A2 - 499.027.82
OPTRONIC AG
SWITZERLAND
Unteregger Strasse 53
CH-9403 Goldach
Phone: +41 (0)71 844 02 00
Fax:
+41 (0)71 844 02 10
e-mail: [email protected]
web: www.optronic.ch
4.23
Configuration Sets
A configuration set contains all settings (adjustable parameters) of the light curtain. The LVMC knows two
such sets: A volatile and a non-volatile set. The contents of the volatile set will be lost if power is turned off,
or the LVMC is restarted. The non-volatile set is stored in the non-volatile memory of the LVMC and is kept
via power off. When the LVMC is turned on, the non-volatile set is copied to the volatile set and the light cur-
tain works with the non-volatile set. If a configuration parameter is changed, it is first stored in the volatile set
only. The transfer to the non-volatile memory is never automatically done, it must be triggered manually.
4.24
Communication via USB
The LVMC is equipped with a USB 2.0 interface for communication with the CMT. When using Microsoft
Windows 8 and newer, no special driver is required for operation, the LVMC is automatically recognized im-
mediately after it has been connected to the PC via a USB 2.0 cable. If the CMT cannot establish a connec-
tion with the LVMC, or if a USB-specific error message is displayed (e.g. “USB device not recognized”), try to
solve the problem by unplugging the USB cable for a short time. If the problem persists, the LVMC maybe is
defective, or there is a software or hardware problem on your PC.
If the connection is lost, CMT tries to re-establish the connection automatically. If this does not succeed, the
USB connection can be re-initialized by briefly disconnecting the USB cable. The connection should then be
re-established automatically.
4.25
Communication via Ethernet
On delivery, the Ethernet network interface of the LVMC is configured to automatically obtain the network
configuration from an accessible DHCP server. The currently used configuration is displayed in the CMT on
the status page. Connect to the LVMC via USB to view it. If supported by the DHCP server, the IP address, IP
netmask, IP default gateway, DNS server address and NTP server address are obtained automatically. If au-
tomatic configuration via DHCP is activated, the DHPC server must provide at least IP address, IP netmask
and IP standard gateway. If the DHPC server does not provide a DNS server address or NTP server address,
then the particular address entered in the CMT on the configuration page is used. The NTP server address
can be specified via the CMT as hostname (e.g. “pool.ntp.org”) or directly as IP address. If a hostname has
been entered and the NTP server address has not been assigned via DHCP, an accessible DNS server is re-
quired to resolve the hostname to an IP address.
The data transmission between CMT and LVMC is encrypted for security reasons. In addition, when estab-
lishing a connection, the CMT password stored in the LVMC must also be entered for authentication. The
CMT password can be changed via the CMT. The previously assigned password does not have to be known,
i.e., if connecting via USB, a new password can be assigned at any time.
If the connection is lost, CMT tries to re-establish the connection automatically.
4.26
Power Supply
The power supply can be realized with 24V DC via the D-Sub connector, or alternatively with Power over
Ethernet (PoE) via Ethernet. Simultaneous power supply via the D-Sub connector and the Ethernet socket is
not supported.