Slave 19 Holding (Integers)
Register
(Decimal)
Register
(Hex)
Description
Data
Type
Units
Access
6781
1A7D
Slave Device 19: Holding: Alarms
INT32
—
RO
6782
1A7E
Slave Device 19: Holding: Input Status
INT32
—
RO
6783
1A7F
Slave Device 19: Holding: Calc Status
INT32
—
RO
Slave 20 Holding (Integers)
Register
(Decimal)
Register
(Hex)
Description
Data
Type
Units
Access
6791
1A87
Slave Device 20: Holding: Alarms
INT32
—
RO
6792
1A88
Slave Device 20: Holding: Input Status
INT32
—
RO
6793
1A89
Slave Device 20: Holding: Calc Status
INT32
—
RO
Slave Device Status
The slave device status includes alarm status and diagnostic information such as input status and calculation status. The
Scanner 2x00 slave devices have 16 user-configurable alarms designated as Flow Run Alarms. Alarms are defined as low
alarms or high alarms. To decode alarms, refer to “Flow Run Alarm Status” column of the
below.
Current status of the alarms can be obtained by reading the Flow Run Alarm registers in the device status map. A bit val-
ue of 1 indicates an alarm condition. Also contained in the device status map are diagnostic registers. The bits in these
registers provide system status for inputs (under range, above range or failed), calculation status (for confirming whether
the flow run is working properly) and details regarding the health of the MVT.
Bit Definitions—Alarms and Diagnostics
Bit
Flow Run
Alarm Status
Diagnostic 1 (Bits 16-31)
Diagnostic 2 (Bits 0-15)
Diagnostic 3 (Bits 16-31)
Diagnostic 4 (Bits 0-15)
31
FRA16 High
FR1 Fail
—
30
FRA15 High
T1 Fail
—
29
FRA14 High
T2 Fail
T2 Calc Warning
28
FRA13 High
Static Pressure Fail
T1 Calc Warning
27
FRA12 High
Differential Pressure Fail
—
26
FRA11 High
PT Fail
—
25
FRA10 High
Analog Input 1 Fail
—
24
FRA9 High
Analog Input 2 Fail
FR1 Calc Warning
23
FRA8 High
FR1 Override
NA
22
FRA7 High
T1 Override
NA
21
FRA6 High
T2 Override
MVT M3 Formula Fail
20
FRA5 High
Static Pressure Override
MVT M2 Formula Fail
19
FRA4 High
Differential Pressure Override
MVT M1 Formula Fail
18
FRA3 High
PT Override
MVT User Parameter CRC fail
17
FRA2 High
Analog Input 1 Override
MVT Factory Parameter CRC fail
16
FRA1 High
Analog Input 2 Override
MVT Not Present
15
FRA16 Low
FR1 High
—
38
Section 1
Scanner 3100 Modbus Protocol
Содержание Scanner 3100
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