HART add-on module
13
9. Common-Practice Commands
9. Common-Practice
Commands
This device supports the following Common-Practice Commands.
Command Number and Data in Command Data in reply
Function
33 Read transmitter variables Not implemented
34 Write damping value Byte 0-3 Byte 0-1 As in command
Damping value in sec.
35 Write range values Byte 0 range unit code As in command
Byte 1-4 upper range
Byte 5-8 lower range
36 Set upper range Not implemented
37 Set lower range Not implemented
38 Reset config. Flag None None
39 EEPROM control Byte 0 0= burn EEPROM As in command
1= restore from EEPROM
40 Enter/exit fixed Byte 0-3 Current (mA) Byte 0-3 Actual current (mA)
current mode Current = 0 ⇒ Exit fixed On exit (Data in command = 0),
Current mode the response is always 4 mA
41 Perform transmitter Not implemented
self-test
42 Perform master reset None None
(Set to default) (Busy for approx. 30 seconds
after reply)
43 Set PV zero None None
HART will respond, command
not implemented“ in the cases
that PV zero is not supported by
the application.
44 Write PV units Byte 0 PV units code As in command
45 Trim DAC Zero Not implemented
46 Trim DAC gain Not implemented
47 Write transfer function Not implemented
48 Read additional None See chapter 7, describing
transmitter status status information
49 Write PV sensor Not implemented
serial number
50-56 Not implemented
57-58 Read/Write unit tag Not implemented
59 Write number of Byte 0 Number of response As in command
preambles preamble bytes
60-107 Not implemented
108 Write burst mode Byte 0 Burst mode command As in command
command number number
1, 2 or 3 supported
109 Burst mode control Byte 0 0 = exit, 1 = enter As in command
110 Read all dynamic None Not implemented
variables
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