
Publication 1746-UM008B-EN-P - December 2006
Overview 17
RTD Module Hardware
General Diagnostic Features
The RTD module contains diagnostic features that can be used to help
you identify the source of problems that may occur while you turn on
the power or during normal channel operation.
The power and channel diagnostics are explained in Chapter 7,
Module Diagnostics and Troubleshooting.
SLC 500
CAT
SERIAL NO.
INPUT
RTD/resistance INPUT MODULE
INPUT SIGNAL RANGES
RESIST ANCE:
CHL 1
SHIELD
SHIELD
CHL 0
RT D
SHIELD
SER
FRN
)
U
L
LISTED IND. CONT . EQ.
FOR HAZ. LOC. A196
CLASS I, GROUPS A, B, C AND D, DIV.2
OPERA TING
)
SA
RTD TYPES:
TEMPERA TURE
CODE T3C
MODULE ST A
TUS
0
1
2
3
CHANNEL
STATUS
RTD/resistance
1746 NR4
NR4±xxx x
RT D
CHL 0
SENSE
CHL 1
SENSE
CHL 0
RETRN
CHL 1
RETRN
SHIELD
CHL 3
CHL 2
RT D
RT D
CHL 2
SENSE
CHL 3
SENSE
CHL 2
RETRN
CHL 3
RETRN
SHIELD
SHIELD
PLATINUM, COPPER
NICKEL, NICKEL±IRON
150 W , 500 W , 1000 W , 3000 W
1
2
3
4
5
6
7
Hardware Features
Feature Description
1 Channel Status LED Indicators
(green)
Display operating and fault status of
channels 0, 1, 2, and 3
2 Module Status LED (green) Displays module operating and fault status
3 Removable Terminal Block Provides physical connection to input devices
4 Cable Tie Slots Secure wiring from module
5 Door Label Provides terminal identification
6 Side Label (Nameplate) Provides module information
7 Self-locking Tabs Secure module in chassis slot
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