Emerson Daniel 3410 Series Operation Manual page 74

Configurations
January 2019
Table 5-14: GC Communications status list
GCComm status value
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
GC data validity
The GC-read gas property data validity is indicated by the AreGasPropertiesInvalidGC data
point. The data is considered invalid if any of the conditions listed in
These conditions are indicated by the Daniel MeterLink Monitor page Field I/O indicator.
Table 5-15: GC-read gas property invalid conditions
Indication Data Point
IsGCAlarmPresent
IsGCWarningPresent
IsGCCommErr
74
(continued)
Error description
GC detected an illegal data value from the meter.
Failure in associated device (Modbus defined error).
GC has accepted the meter's request but is still processing.
A firmware logic error was detected.
Modbus address mismatch.
Modbus function code mismatch.
GC reports an exception code that is unrecognized.
The meter's Modbus request message is too long (exceeds the
maximum allowable length).
The GC's Modbus response message is too long (exceeds the
maximum allowable length).
GC response message has incorrect number of registers.
GC does not support the requested message data type.
GC does not support the requested data protocol.
The meter's Modbus request message (RTU protocol) is too
long (exceeds the maximum allowable length).
GC response not received within the communication timeout.
GC response message (ASCII protocol) incomplete.
GC response message (RTU protocol) incomplete.
Condition
Invalid GC feature key (GC interface
Port improperly configured (such as if configured without using the
Daniel MeterLink Field Setup Wizard).
Unrecognized gas component ID.
Specified gas stream (GCStreamNumber) not found within the specified
period (GCDesiredStreamTimeout).
GC reported alarm (GC Alarm1 bits 14 and/or 15 set, GC Alarm2 bits 0, 1,
2, and/or 3 set).
Not presently used - reserved for future use.
Refer to communication error conditions listed in
Operations manual
DAN-20057316
Table 5-15 is true.
key)
Table 5-14.
Operations manual