SBC PCD2.M5 Series - Page 104

Hardware Manual for the PCD2.M5 Series│Document 26/856; Version EN 12│2014-07-24
Saia-Burgess Controls AG Communication interfaces
5
5-20
Serial interfaces on I/O module slots 0 - 3
Block diagram
PCD
I/O Bus
SPI
Bus
Interrupt
Input
I/O Bus
Interface
(CPLD)
I/O Port
Microcontroller
ARM7
UART 1
SPI (Slave)
Interface
Interrupt
Output
Port x.1
serial line
interface
Slot for one
module
PCD7.F1xx
Port x.0
serial line
driver /
receiver
RS232 or
RS422/485
equipped
Clamp connector
Port x.0
Clamp connector
Port x.1
Power supply
3.3V
UART 2