Temperature Pointer (Items Vp And Vv) - Honeywell Enraf VITO Instruction Manual

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3.4.3 Temperature pointer (items VP and VV)

By means of the value pointer (item VP) a vector can be loaded to the HCU or ICU_HPI option board. Next, with
item VV, the selected data is returned. Item VP consists of 4 positions, in the middle separated by a '.' or ',' :
v w . x y (or v w , x y). The values for the value pointer are listed in table 3 – 2 together with the obtained data.
v w , x y Selected data
0 0 , 0 0 HCU / ICU_HPI Emulation & Function
Emulation: MPU, HSU, HPU, HCU
Function:
0 0 , 0 1 Configuration boot code
Sales code option: C
0 0 , 0 2 HCU / ICU_HPI hardware version
0 0 , 0 3 Boot code software version
0 2 , 0 0 Calculated temperature of 1
0 2 , 0 1 Calculated temperature of 2
: :
0 2 , 1 3 Calculated temperature of 14
0 2 , 2 6 Standard deviation
0 2 , 2 9 Calculated I_ref
0 2 , 8 2 Calculated resistance 1
0 2 , 8 3 Calculated resistance 2
: :
0 2 , 9 5 Calculated resistance 14
0 3 , 0 1 Error counters HART addresses 3, 4 and 5
(762 VITO MRT Interface has HART address 5)
0 3 , 0 9 Detected HART device addresses
0 3 , 1 0 Initial detected VITO device type & software version
Description:
0 3 , 1 1 Real active functions of VITO Interface (refer to description of VP=03,10)
0 3 , 1 2 Actual executed HART commands from 762 VITO Interface
Table 3 – 2
Item Name
VP= Temperature value pointer
VV Temperature pointer value
Instruction manual VITO
Average temperature measurement with MRT
HC: HART channel installed
AO: analog output
ST: spot temperature
MR: VITO average MRT/multi spot probe
WS: external water bottom probe
PR: pressure transmitters
boot code: 0A
J 2E
W 1A
X 12
Y 3F
st
element
nd
element
:
th
element
st
element
nd
element
:
th
element
763 : 762 VITO MRT/multiple RTD interface
MRT : MRT element
10 : software version 1.0
Description
Temperature value pointer; format: 2 digits, separator, 2 digits
(refer to table 3 – 2).
Example: VP=02.00: value pointer loaded to request the
calculated temperature of the 1
Temperature pointer value.
This item holds the value requested by item VP
(refer to table 3 – 2).
Example: the requested temperature of the 1
(standard floating point format).
Example / Dimension
VV=HCU HCAOMR- - PR
VV=HCU CONFIG: 3F
VV=HW VERSION: 00
VV=BOOTSW VERS:01
(floating point format) according to item TD
according to item TD
(floating point format)
(floating point format) according to item TD
(floating point format) < 0.5E-10
(floating point format) 1.0275 mA ±0.05
(floating point format)
(floating point format)
(floating point format)
VV=0000:0000:0013
(5 for VITO Interface)
VV= - - - - 5 - - - - - - - - -
VV=763 MRT
st
element.
10
st
element
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