Rockwell Automation 1771-IL/B , D17716.5.91 ISOLATED ANALOG INPUT Module - Manual (Page 49)

Troubleshooting
Chapter 7
7-4
Status Reported in Words 13 and 14
Design your program to monitor over/under alarm bits, and to take appropriate
action depending on your application requirements. You may also want to
monitor these bits while troubleshooting with your industrial terminal.
Bits 00-07 each represent an input for channels 1-8, respectively. For example,
bit 04 represents input channel 5. The module sets a bit (1) to indicate it has
detected an alarm condition. Refer to Table 7.D.
Table 7.D
Status Reported in Words 13 and 14
Word
Decimal Bit
(Octal Bit)
Description
Word 13
Bits 00-07
(00-07)
Low Alarm bits for channels 1 through 8 respectively. Each bit
represents an alarm indicator for that channel. When the bit is set, the
value of that channel is below the low alarm value.
Word 14
Bits 00-07
(00-07)
High Alarm bits for channels 1 through 8 respectively. Each bit
represents an alarm indicator for that channel. When the bit is set, the
value of that channel is above the high alarm value.