Connection; Connecting The Host Interface - Leuze electronic MA 21 Technical Description

Connection

5 Connection
5.1

Connecting the host interface

Connection terminals: 1-6
Pin assignments of interface modules
Attention!
The pin assignments of the connection terminals are dependent on the interface module
connected. The respective terminal designations are printed on the modules or affixed to the
cover of the MA 21.
The type designation of the MA 21 indicates which interface module is installed:
MA 21Interface types
Type designation/
Order code
MA 21 100
MA 21 100.2
MA 21 110
MA 21 120
MA 21 130
20
Interface module of the
host interface
RS 485
RS 485 multiNet plus with
system connectors
RS 232
TTY
RS 422
MA 21
For multiNet see chapter 5.2
These versions use the MA 21 as
an interface and protocol con-
verter from RS 232 to the corre-
sponding host interface (cf.
following pages)
Leuze electronic