Description
10
Technical description BCL 21/22 SB
Leuze electronic
3.1.1
Networking
Up to 30 scanners can be networked via the connector unit MA 2 and a bus master MA 30/31.
For this, every BCL 21 is assigned its own hardware address in the corresponding MA 2. The
devices are networked by connecting the individual RS 485 interfaces in parallel.
multiNet plus
In the Leuze multiNet plus, the individual network devices sequentially transfer their data to
the network master MA 30/31 when requested. In addition, every bus node declared a slave
receives a device address which is adjusted in the corresponding MA 2/MA 4… via a coding
switch. The device address remains in the MA 2/MA 4… when the scanner is replaced.
The master then transmits the data of all network devices via its host interface to a primary
PLC control system or a computer, i.e. it "collects" the scanner data in the network and
transmits them to an interface on the host computer. This reduces interface costs (CPs) and
time spent programming the software.
Networking via multiNet plus
Figure 3.2:
Networking possibilities using the multiNet plus (BCL 21)
Slave 1
MA 2
Slave 2
MA 2
Slave 3
MA 2
RS 232
RS 422
RS 485
or
TTY
Host
(PLC, process, etc.)
- backup
- parameter
Voltage supply
Network master
multiNet plus
MA30/31
RS 485
