
96 Transmitter Configuration and Use: Series 1000 and 2000 Transmitters
Optional Configuration continued
8.15 Configuring digital communications
The digital communications parameters control how the transmitter will
communicate using digital communications (HART or Modbus).
The following digital communications parameters can be configured:
• Fault indicator
• HART polling address
•Modbus address
• RS-485 settings
•Burst mode
• PV, SV, TV, and QV assignments
8.15.1 Changing the fault indicator
The transmitter can indicate fault conditions using a digital fault indicator. Table 8-9
lists the options for the digital fault indicator.
Display variable 13 None
Display variable 14 None
Display variable 15 None
(1) Display variable 1 always represents the process variable that is assigned to the primary mA output, and cannot be
changed.
Table 8-9 Digital communication fault output indicators and values
ProLink II
fault indicator options
Communicator
fault indicator options Fault output value
Upscale Upscale Process variables indicate the value is greater than
the upper sensor limit. Totalizers stop counting.
Downscale Downscale Process variables indicate the value is less than
the lower sensor limit. Totalizers stop counting.
Zero IntZero-All 0 Flow rates, density, and temperature go to the
value that represents zero flow. Totalizers stop
counting.
Not-A-Number (NAN) Not-a-Number Process variables report IEEE NAN and Modbus
scaled integers report Max Int. Totalizers stop
counting.
Flow to Zero IntZero-Flow 0 Flow rates go to the value that represents zero
flow; other process variables are not affected.
Totalizers stop counting.
None (default) None Process variables reported as measured.
Table 8-8 Example of a display variable configuration (continued)
Display variable Process variable
• Model 1500 AN
• Model 1700 AN
• Model 1700 IS
• Model 2500 CIO
• Model 2700 AN
• Model 2700 IS
• Model 2700 CIO
• Model 1500 AN
• Model 1700 AN
• Model 1700 IS
• Model 2500 CIO
• Model 2700 AN
• Model 2700 IS
• Model 2700 CIO
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