Emerson Micro Motion 3711 Configuration And Use Manual page 156

Modbus Interface
Table 12-10 Operator change and alarm change bit maps continued
Bit Operator change bit map
4 Boolean fixed bit – Change to Status in DO or DI
5 Fixed/variable flag – Change to Manual Mode for an I/O point
6 Table entry change – Change to Modbus Function Tables
7 System command change – Events logged by system (Power up)
8 Not used
9 Operator change (Event Log) or Alarm identifier bit
10 Low Low Limit – Change to Low Low Alarm parameter
11 Low Limit – Change to Low Alarm parameter
12 High Limit – Change to High Alarm parameter
13 High High Limit – Change to High High Alarm parameter
14 Rate of Change Limit – Change to Rate Alarm parameter
15 Not used
148
Alarm change bit map
Not used
Manual alarm
Status change alarm
No flow alarm
Point fail alarm
Event or alarm identifier bit
Low Low alarm
Low alarm
High alarm
High High alarm
Rate alarm
Set/clear alarm (1 = set, 0 = clear)
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Micro Motion Model 3711 Gas Flow Computers