Output data file – Rockwell Automation 1762-OF4 MicroLogix Analog Output Module User Manual
Page 15
Analog Output Module 15
Publication 1762-IN016D-EN-P - June 2013
• UOx = Under-range flag bits for output channels 0…3. These bits indicate an input
signal below the user range. They can be used in the control program for error detection.
The module continues to convert analog data to the minimum full range value while this
bit is set (1). The bit is reset (0) when the error clears.
Output Data File
For each module, slot x, words 0…3 contain the channel output data.
Words 0…3 contain the analog output data for channels 0…3, respectively. The module ignores
the “don’t care” bits (0…2), but checks the sign bit (15). If bit 15 equals 1, the module sets the
output value to 0V or 0 mA.
Words 0…3 contain the analog output data for channels 0…3, respectively. The module ignores
the “don’t care” bits (0 and 1), but checks the sign bit (15), and bit 14. If bit 15 equals 1, the
module sets the output value to 0V or 0 mA. If bit 15 equals zero and bit 14 equals 1, the module
sets the output value to 10.5V DC or 21 mA.
Raw/Proportional Format
Wo
rd
Bit Position
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
0
0
Channel 0 Data 0…32,760
0
0
0
1
0
Channel 1 Data 0…32,760
0
0
0
2
0
Channel 2 Data 0…32,760
0
0
0
3
0
Channel 3 Data 0…32,760
0
0
0
Scaled-for-PID Format
Wo
rd
Bit Position
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
0
0
0
Channel 0 Data 0…16,380
0
0
1
0
0
Channel 1 Data 0…16,380
0
0
2
0
0
Channel 2 Data 0…16,380
0
0
3
0
0
Channel 3 Data 0…16,380
0
0