6000 Series Analog Input Modules
The Optimal Choice for Harsh Environment
-6018 Thermocouple Analog Input Module
1. Introduction
NuDAM-6018 is a thermocouple input module with 8 input
channels. Six of the eight channels are differential and the
other two are single ended type.
Features
8 analog input channels
6 differential input and 2 single ended input
programmable input range
programmable host watchdog timer for host failure
protection
on board CJC for temperature measurement
2500 Vrms analog input isolation
internal watchdog timer for device failure protection
easy programming by software
easy installation and wiring
Specifications
Interface:
RS-485, 2 wires
Speed (bps): 600, 1200, 2400, 4800, 9600, 19.2k,
38.4k, 57.6k, 115.2k
Analog Input:
Differential channels: 6
Single ended channels: 2
Resolution: 16 bits
Accuracy: ±0.05%
Sampling rate: 10
Unit conversion: thermocouple, mV, V or mA
Thermocouple type: J, K, T, E, R, S, B, N and C
J: 0
C ~ 760
C K: 0
C ~ 1370
C
T: -100
C ~ 400
C
E: 0
C ~ 1000
C
R: 500
C ~ 1750
C
S: 500
C ~ 1750
C
B: 500
C ~ 1800
C
N: -270
C ~ 1300
C
C: 0
C ~ 2320
C
Voltage range: programmable 6 levels:
±2.5V, ±1V, ±500mV, ±100mV, ±50mV, ±15mV
Current measurement: 20mA (with external 125
ohm resistor)
Isolation Voltage: 2500 Vrms
Note: The maximum input voltage shall not
exceed to ±30V with reference to AGND
otherwise, they may cause an unrecoverable
harm to the hardware component.
Storage Temperature Range: -25 to 80
C
Operating Temperature Range: -10 to 70
C
Power Requirement: +10V to +30V
DC
Unregulated
with against power reversal
Power Consumption: 0.70W
Case: ABS with captive mounting hardware
CE Class A Conformity
2. Pin Assignment
ND-6018
(Y)
DA
TA
+
(G)
DA
TA
-
(R)
+V
s
(B)
GN
D
8-CH Thermocouple
Input
1
10
Vin
5+
Vin
5-
Vin
6+
AG
ND
Vin
7+
DE
FA
UL
T
*
Vin
4-
Vin
4+
Vin
3-
Vin
3+
Vin
2-
Vin
2+
Vin
1-
Vin
1+
Vin
0-
Vin
0+
11
20
0E
0F
10
11
12
J
K
T
E
R
S
CODE
T/C
13
Pin Definitions
Pin # Signal Name Description
1
Vin5+
Differential positive input channel 5
2
Vin5-
Differential negative input channel 5
3
Vin6+
Single-ended input channel 6
4
AGND
Analog signal ground of channel 6 & 7
5
Vin7+
Single-ended input channel 7
6
DEFAULT* Initial state setting
7
(Y)DATA+
RS-485 signal, positive
8
(G)DATA-
RS-485 signal, negative
9
(R)+VS
Power supply, +10V ~ +30Vdc
10
(B)GND
Ground
11
Vin0+
Differential positive input channel 0
12
Vin0-
Differential negative input channel 0
13
Vin1+
Differential positive input channel 1
14
Vin1-
Differential negative input channel 1
15
Vin2+
Differential positive input channel 2
16
Vin2-
Differential negative input channel 2
17
Vin3+
Differential positive input channel 3
18
Vin3-
Differential negative input channel 3
19
Vin4+
Differential positive input channel 4
20
Vin4-
Differential negative input channel 4
*The module is in DEFAULT mode when DEFAULT* pin
connected to GND while applying power on the module.
*Do not apply any power signal to DEFAULT* pin, just left
it open or connected it to GND.
3. Application Wiring
Differential Voltage Input
AGND
AGND
Differential
Signal
Source
<30V
IN(-)
IN(+)
ADC
Single Ended Voltage Input
Ground
Signal
Source
AGND
IN(+)
ADC
Current Input Measurement
Current
Source
R=125 Ohm
%1 accuracy
IN(-)
IN(+)
ADC
R
Thermocouple Input Measurement
<30V
IN(-)
IN(+)
ADC
AGND
AGN D
4. Functional Block Diagram
5. Installation
Equipment for Installation
A existing RS-485 network
NuDAM modules
DC Power supply (+10V~+30V)
Wires for power, communication and I/O signal
Installation Procedure
1.
Configure every single NuDAM module under the
administration utility
2.
The baud rate setting and calibration procedure must be
done under the DEFAULT* mode
3.
The baud rate and check-sum status must be identity
with the application network. The address ID must not
be conflict with other modules on the network
4.
Plug the new module to the existing network
5.
Use the NuDAM administration utility to check the
entire network
Power Input
+10V ~ +30V
+ 5V
Power
Regulator & Filter
Data+
Data -
GND
RS-485
Rec/Drv
Micro
Processor
EEPROM
Config Data
Safe Value
ADC
1-bit
Digital Input
8
Thermo-
couple
Input
channels
Default*
Pin
Mux
Watchdog/Power Failure
Supervisor
