Enabling Or Disabling A Channel (Bit 15) - Spectrum Controls 1769 User Manual

6 channel isolated rtd/resistance input module
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Table 4-2 (Channel Configuration)
Cyclic Lead Compensation
Raw/Proportional Data
Engineering Units x10
User's Manual Pub. 0300241-01 Rev. A
Chapter 4: Module, Data, Status, and Channel Configuration
Each channel configuration word consists of bit fields, the settings of which determine
how the channel operates. See the table below and the descriptions that follow for valid
configuration settings and their meanings.
Bit
15
Filter Frequency
4.17 Hz
10 Hz
16.7 Hz
19.6 Hz
62 Hz
470 Hz
Unused
Enable
Disable
Open Circuit
Upscale
Downscale
Last State
Zero
Temp Units
Degrees C
Degrees F
Input Type
100 Pt 385
200 Pt 385
500 Pt 385
1000 Pt 385
100 Pt 3916
200 Pt 3916
500 Pt 3916
1000 Pt 3916
10 Cu 426
100 Ni 618
120 Ni 672
604 NiFe 518
150 ohm
500 ohm
1000 ohm
3000 ohm
Data Format
Engineering Units
Scaled for PID
Percent Range
Chan. Enable
Enable
0
Disable
1
Note: Default settings for a particular function are indicated by zero(s). For example,
the default filter frequency is 10 Hz.

4.2.3 Enabling or Disabling a Channel (Bit 15)

You can enable or disable each of the six channels individually using bit 15. The module
only scans enabled channels. Enabling a channel forces it to be recalibrated before it
measures input data. Disabling a channel sets the channel data word to zero.
14
13
12
11
10
0
0
0
0
0
0
0
0
0
1
0
1
0
1
0
1
1
0
1
0
1
0
1
0
1
1
1
1
1
1
1
1
0
0
0
0
0
1
1
0
0
0
1
0
0
1
1
9
8
7
6
5
4
3
0
0
1
0
0
0
1
1
0
1
1
0
1
0
0
0
1
1
0
1
1
0
0
0
1
1
0
1
1
0
0
0
1
1
0
1
1
0
0
0
1
1
0
1
1
4-3
2
1
0
1
1
0
0
0
0
0
0
1
0
1
1
1
0
0
1
0
1

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