Fig. 21 MCU processor board connections
12 34
98
10
11
12
5
6
7
1 Supply voltage 24 V DC
2RS232
3 Connection for I/O module
option
4 Connection for display module
5 Connection for LEDs
6 Connection for interface
module option
7 USB plug-in connector
8 Connections for sender/
receiver units
9 Connections for relays 1 to 5
10 Connections for analog inputs 1
and 2
11 Connection for analog output
12 Connections for digital inputs 1
to 4 (digital inputs 3 and 4 not
supported at present)