Initial programming, Initial programming -2 – Rockwell Automation 1746-NR8 SLC 500 RTD/Resistance Input Module User Manual User Manual
Page 74
Publication 1746-UM003A-EN-P
5-2 Ladder Programming Examples
Initial Programming
To enter data into the channel configuration word (O:e.0 through O:e.7)
when the channel is disabled (bit 11 = 0), follow the example below.
Refer to page 4-5 for specific configuration details.
Example - Configure eight channels of a RTD module residing in slot 3 of a
1746 chassis. Configure the first four channels with one set of parameters, and
the last four channels with a different set of parameters.
Figure 5.1 Configuration Word Setup for Channels 0 through 3
Figure 5.2 Configuration Word Setup for Channels 4 Through 7
11
12
14
15
13
1
0
9
10
8
1
6
7
0
0
4
5
0
0
0
0
1
2
3
1
1
1
0
1
0
1
0
Bit Number
Bit Setting
Configures Channel For:
100
Ω
Platinum RTD
Scaled-for-PID
Broken Input (Zero Data Word)
Degrees Fahrenheit (°F)
50/60 Hz Filter Frequency
Channel Enabled
0.25 mA Excitation Current
Calibration Enabled
Lead R Always
11
12
14
15
13
1
1
9
10
8
0
6
7
0
1
4
5
1
0
0
0
1
2
3
0
0
1
1
0
1
0
0
Configures Channel For:
10
Ω
Copper RTD (426)
Engineering Units x 10
Broken Input (Set Upscale)
Degrees Celsius (°C)
800 Hz Filter Frequency
Channel Enabled
0.25 mA Excitation Current
Calibration Disabled
Lead R Periodic