Channel configuration, Channel configuration -4 – Rockwell Automation 1746-NR8 SLC 500 RTD/Resistance Input Module User Manual User Manual
Page 96

Publication 1746-UM003A-EN-P
7-4 Application Examples
Figure 7.3 Device Configuration for Displaying Many RTD Inputs
Channel Configuration
(see completed worksheet on page 7-5)
Configuration setup for ambient RTD:
•
channels 0 and 4
•
604
Ω
Nickel/Iron (518)
•
display temperature to tenths of a degree Celsius or Fahrenheit
•
zero data word in the event of an open- or short-circuit
•
28 Hz input filter to provide 60 Hz line noise rejection
•
use 1.0 mA excitation current for RTD
•
scaling for -20°C to +60°C
Bath
°
C
°
F
.
Chilled H
2
O
Steam
.
.
Ambient
.
.
.
.
SLC 5/04
1746-NR8
1746-IB8
(8) 1746-OB16
Ambient Temperature
604
Ω
Nickel/Iron (518)
Chilled H
2
O Pipe In
Chilled H
2
O Pipe Out
200
Ω
Platinum RTD (385)
1000
Ω
Platinum RTD (385)
Steamed Pipe Out
Steamed Pipe In
Bath
200
Ω
Platinum RTD (385)
Display Panel
Selector Switch (I:2/0)
Ambient Temperature
604
Ω
Nickel/Iron (518)
Bath
200
Ω
Platinum
RTD (385)
Chilled H
2
O Pipe In
Chilled H
2
O Pipe Out
200
Ω
Platinum RTD (385)
1000
Ω
Platinum RTD (385)
Steamed Pipe Out
Steamed Pipe In
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