Honeywell Enraf VITO User Manual

Average temperature measurement with MPT / RTD
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Instruction manual VITO Page 34
4.4.3 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 4 – 2 together with the obtained data.
v w , x y Selected data Example / Dimension
0 0
0 0
0 0
0 0
0 2
0 2
:
0 2
0 2
0 2
0 2
0 2
:
0 2
0 3
0 3
0 3
0 3
0 3
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
0 0
0 1
0 2
0 3
0 0
0 1
:
1 3
2 6
2 9
8 2
8 3
:
9 5
0 1
0 9
1 0
1 1
1 2
HCU / ICU_HPI Emulation & Function
Emulation: MPU, HSU, HPU, HCU
Function: 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
Configuration boot code
Sales code option: C boot code: 0A
J 2E
W 1A
X 12
Y 3F
HCU / ICU_HPI hardware version
Boot code software version
Calculated temperature of 1
st
spot element (floating point format)
Calculated temperature of 2
nd
spot element (floating point format)
:
Calculated temperature of 14
th
spot element (floating point format)
Standard deviation (floating point format)
Calculated I_ref (floating point format)
Calculated resistance 1
st
spot element (floating point format)
Calculated resistance 2
nd
spot element (floating point format)
:
Calculated resistance 14
th
spot element (floating point format)
Error counters HART addresses 3, 4 and 5
(762 VITO MRT Interface has HART address 5)
Detected HART device addresses (5 for VITO Interface)
Initial detected VITO device type & software version
Description: 763 : 762 VITO MRT/multiple RTD interface
RTD PRB : Multiple RTD’s
RTD : 2 or 3 RTD’s
3-W : 3-wire configuration
10 : software version 1.0
Real active functions of VITO Interface (refer to description of VP=03,10)
Actual executed HART commands from 762 VITO Interface
VV=HCU HCAOMR- - PR
VV=HCU CONFIG: 3F
VV=HW VERSION: 00
VV=BOOTSW VERS:01
according to item TD
according to item TD
according to item TD
< 0.5E-10
1.0275 mA ±0.05
Ω
Ω
Ω
VV=0000:0000:0013
VV= - - - - 5 - - - - - - - - -
VV=763 RTD 3-W 10
VV=763 RTD 3-WIRE
Table 4 – 2
Item Name Description
VP= Temperature value pointer Temperature value pointer; format: 2 digits, separator, 2 digits
(refer to table 4 – 2).
Example: VP=02.00: value pointer loaded to request the
calculated temperature of the 1
st
spot element.
VV Temperature pointer value Temperature pointer value.
This item holds the value requested by item VP
(refer to table 4 – 2).
Example: the requested temperature of the 1
st
spot element
(standard floating point format).

Honeywell Enraf VITO Specifications

General

Brand	Honeywell
Model	Enraf VITO
Category	Temperature Controller
Language	English