25
NC20 - Manual - 01 - 2015
FUNCTION CHARACTERISTICS
4 F U N C T I O N C H A R A C T E R I S T I C S
4 F U N C T I O N C H A R A C T E R I S T I C S
4.1 HARDWARE
DESCRIPTION
The following fi gure illustrates the basic structure of the relay
Printed boards hold the circuit components arranged according to a modular allocation of the main
functions.
hw.ai
RTC
EEprom
Flash
SRam
SRam
SPI
CPU
ETHERNET
CPU BOARD
POWER SUPPLY BOARD
INPUT MODULE
DSP
DUAL
PORT
1A/5A
≈
≈
≈
≈
EEprom
Thybus
RS485
RELAYS
K1...K6
Output contacts
RS232
MMI
LCD
LEDs
BINARY INPUTS
IN1
Input
IN2
BLOCK I/O
BLKIN
Input
BLKOUT
POWER SUPPLY
+5 V
+10 V
0 V
+24 V
-10 V
POWER F
AIL
RESET
Uaux
hw.ai
RTC
EEprom
Flash
SRam
SRam
SPI
CPU
ETHERNET
CPU BOARD
POWER SUPPLY BOARD
INPUT MODULE
DSP
DUAL
PORT
1A/5A
≈
≈
≈
≈
EEprom
Thybus
RS485
RELAYS
K1...K6
Output contacts
RS232
MMI
LCD
LEDs
BINARY INPUTS
IN1
Input
IN2
BLOCK I/O
BLKIN
Input
BLKOUT
POWER SUPPLY
+5 V
+10 V
0 V
+24 V
-10 V
POWER F
AIL
RESET
Uaux