Manual

Introduction • 11
Pin Definitions of ND-6013
Pin # Signal Name Description
1 +IEXC0 Current source of CH0
2 +SENSE0 Differential positive input of CH0
3 -SENSE0 Differential negative input of CH0
4 -IEXC0 Current source of CH0
5 AGND0 Analog signal ground of CH0
6 DEFAULT* Initial state setting
7 (Y) DATA+ RS-485 series signal, positive
8 (G) DATA- RS-485 series signal, negative
9 (R) +Vs Power supply, +10V~+30V
10 (B) GND Ground
11 AGND2 Analog signal ground of CH2
12 -IEXC2 Current source of CH2
13 -SENSE2 Differential negative input of CH2
14 +SENSE2 Differential positive input of CH2
15 +IEXC2 Current source of CH2
16 AGND1 Analog signal ground of CH1
17 -IEXC1 Current source of CH1
18 -SENSE1 Differential negative input of CH1
19 +SENSE1 Differential positive input of CH1
20 +IEXC1 Current source of CH1
Functional Block Diagram of ND-6013
200
µ
A
200
µ
A
+ 5V
2, 3, 4
Wires
+IEXC
+SENSE
-SENSE
-IEXC
GND
Power
Regulator & Filter
Data +
Data -
GND
RS-485
Rec/Drv
Power Input
+10V ~ +30V
Micro
Processor
EEPROM
Config Data
Safe Value
ADC
1-bit
Digital Input
3
RTD
Input
Channels
Default*
Pin
Mux
Watchdog/Power
Failure Supervisor