Rockwell Automation 1746-NR8 SLC 500 RTD/Resistance Input Module User Manual User Manual
Page 69
Publication 1746-UM003A-EN-P
Channel Configuration, Data, and Status 4-21
Table 4.25 Channel 0 through 7 Status Word (I:e.8 through I:e.15) - Bit Definitions
Bit(s)
Define
These bit settings
Indicate this
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
0 through 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
0
1
500
Ω
Resistance Input
1
1
1
0
1000
Ω
Resistance Input
1
1
1
1
3000
Ω
Resistance Input
4 through 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 through 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
9 through 10 Filter frequency
status
0
0
28 Hz
0
1
50/60 Hz
1
0
800 Hz
1
1
6400 Hz
11
Channel enable
status
0
Channel Disabled
1
Channel Enabled
12
Calibration Error
0
OK
1
Error
13
Broken input
0
OK
1
Error
14
Out-of-range
error status
0
OK
1
Error
15
Configuration
Error
0
OK
1
Error
(1) Actual value at 0°C is 9.042
Ω
per SAMA standard RC21-4-1966.
(2) Actual value at 0°C is 100
Ω
per DIN standard.
(3) Values are in 0.1 degree /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.