Rockwell Automation 1746-NR4 SLC RTD/Resistance Input Module User Manual User Manual
Page 83
Publication 1746-UM008B-EN-P - December 2006
Channel Configuration, Data, and Status 83
Channel 0…3 Status Word (I:e.4 through I:e.7) - Bit Definitions
Bits
Define
These bit settings
Indicate this
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
0…3
Input type status
0
0
0
0
100
Ω Pt RTD (385)
0
0
0
1
200
Ω Pt RTD (385)
0
0
1
0
500
Ω Pt RTD (385)
0
0
1
1
1000
Ω Pt RTD (385)
0
1
0
0
100
Ω Pt RTD (3916)
0
1
0
1
200
Ω Pt RTD (3916)
0
1
1
0
500
Ω Pt RTD (3916)
0
1
1
1
1000
Ω Pt RTD (3916)
1
0
0
0
10
Ω Cu RTD (426)
(1)
1
0
0
1
120
Ω Ni RTD (618)
(2)
1
0
1
0
120
Ω Ni RTD (672)
1
0
1
1
604
Ω NiFe RTD (518)
1
1
0
0
150
Ω Resistance Input
1
1
1
0
1000
Ω Resistance Input
1
1
1
1
3000
Ω Resistance Input
4…5
Data format status
0
0
Engineering units X 1
(3)
0
1
Engineering units X 10
(4)
1
0
Scaled-for-PID
1
1
Proportional Counts
6…7
Broken input status
0
0
Set to Zero
0
1
Set to Upscale
1
0
Set to Downscale
1
1
Not used
8
Temperature units status
0
Degrees °C
(5)
1
Degrees °F
(5)
9…10
Filter frequency status
0
0
10 Hz
0
1
50 Hz
1
0
60 Hz
1
1
250 Hz
11
Channel enable status
0
Channel Disabled
1
Channel Enabled
12
Excitation current status
0
2.0 mA
1
0.5 mA
13
Broken input error status
0
No error
1
Short or opened detected
14
Out of range error status
0
No error
1
Out of range detected
15
Configuration error status
0
No error
1
Configuration error
(1)
Actual value at 0 °C (32 °F) is 9.042
Ω per SAMA standard RC21-4-1966.
(2)
Actual value at 0 °C (32 °F) is 100
Ω per DIN standard.
(3)
Values are in 0.1 degrees/step or 0.1
Ω/step for all resistance input types, except 150 Ω. For the 150 Ω, resistance input type, the values are in 0.01 Ω/step.
(4)
Values are in 1 degree /step or 1
Ω/step for all resistance input types, except 150 Ω. For the 150 Ω, resistance input type, the values are in 0.1 Ω/step.
(5)
This bit is cleared (0) when a resistance device, such as a potentiometer, is selected.