LEMCOM CANopen®
– User manual
General
overview of LEMCOM
COVAL
– LMCOP-EN-A-1155UM0068
8/49
To meet manufacturer
s’ growing needs in terms of equipment running on field buses and Industrial
Ethernet, COVAL has developed and now offers LEMCOM, a “communicating” variant of the LEMAX
mini vacuum pump.
LEMCOM modules are generally mounted as an “island”, based on a set of devices consisting of
one master and several secondaries, but its flexible architecture (island or stand-alone module)
allows each Venturi pump to be placed right up close to the application.
Master-secondary island concepts
STAND-ALONE MASTER MODULE ISLAND OF SECONDARY MODULE STAND-ALONE SECONDARY MODULE
Figure 1
– Master-secondary island concept
-
An island consists of 1 master module and 1 to 15 secondary modules.
-
Communication between a LEMCOM master module and the CAN controller (PLC) is based
on the “producer/consumer” model.
-
LEMCOM master
LEMCOM secondary
communication takes place over the “COVAL bus”
(CAN support
– proprietary communication protocol).
-
24 V DC
power is supplied to all modules via the “rear” connector on the island’s last module.
-
The master module is a fully fledged Venturi pump. It therefore is able to work on its own
without any adjoining secondary module.
NOTE
The secondary modules are identical regardless of the protocol used on the master
module (CANopen, EtherNet/IP, etc.).