Commissioning
108
7.7.3
Device-specific commands
Manufacturer-specific units for HART
40
Simulate output current of the
primary value
Access type = Write
Simulation of the desired output current of the primary
value. If the value entered is 0, the simulation mode is
exited:
• Byte 0-3: Output current in mA
Values between 2 and 22 mA can be simulated. No
current simulation is possible if the device is in the
multidrop mode.
Byte 0-3: Output current in mA
42
Perform device reset
Access type = Write
none
Communication is not possible during the device
initialization which is necessary after a reset, (approx. 15
s).
none
44
Write unit of the primary value
Access type = Write
Specify the unit of the primary value. Only units which
are suitable for the process variable are accepted by the
device:
• Byte 0: HART unit ID
The display unit of the device cannot really be changed.
This command only exists for compatibility reasons.
Byte 0: HART unit ID
48
Read extended device status
Access type = Read
none
Coding: See "Error messages".
59
Specify number of preambles in
message responses
Access type = Write
This parameter specifies the number of preambles which
are inserted in the message responses:
• Byte 0: Number of preambles (5...20)
Byte 0: Number of preambles
Command No.
HART command/access type
Command data
(numeric data in decimal form)
Response data
(numeric data in decimal form)
Command No.
HART command/access type
Command data
(numeric data in decimal form)
Response data
(numeric data in decimal form)
144
Read VH matrix variable
Access type = Read
The FieldCare variables are read with this command.
• Byte 0: VH position
Lower 4 bits: H
Upper 4 bits: V
• Byte 0: VH position lower 4 bits: H upper 4 Bits: V
• Byte 1: HART unit ID
• Byte 2...n: VH variable
145
Write VH matrix variable
Access type = Write
The FieldCare variables are written with this command.
• Byte 0: VH position lower 4 bits: H upper 4 Bits: V
• Byte 1: HART unit ID
• Byte 2...n: VH variable
• Byte 0: VH position lower 4 bits: H upper 4 Bits: V
• Byte 1: HART unit ID
• Byte 2...n: VH variable
Decimal
Hexa-
decimal
Unit
240
F0
mV/pH
241
F1
μ
A
242
F2
-
243
F3
-
245
F5
-
246
F6
-
Содержание Topcal S CPC310
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