Manufacturer Specific Profile Area
Manual • Doc.-No.: C.3032.21 / Rev. 1.1
CAN-CBX_Pt100
Page 108 of 120
(
)
corr
gc Ih
gc PGAy
local temp
ref
temp Ih
tk Ih
=
+
+
−
_
_
_
_
_
_
256
Process-Value Calculation
1) Correction FV
FV
AI FV
corr
corr
=
+
P
Q
R
S
T
U
_
1
2
22
with
FV
corr
:
internal corrected field value in ADC-units
AI_FV
[Object 9100
h
]:
analog input field value
corr
:
internal correction factor
with
gc_lh
[objects 2502
h
, 2503
h
]:
Gain-correction factor (gain correction Ilow/Ihigh) for
the low and the high measuring current
gc_PGAy
[objects 2504
h
, 2505
h
, 2506
h
]:
Gain correction for the gains:
(
y
= 2,3,4)
PGA=2 [2504
h
], PGA=3 [2505
h
] and PGA=4 [2506
h
]
(no correction at PGA=1)
local_temp
[object 2420
h
]:
Temperature of the units of this channel on the PCB
measured during calibration
ref_temp_lh
[objects 2500
h
, 2501
h
]:
Reference temperature for the high and the low
measuring current determined during calibration
tk_lh
[objects 2511
h
, 2512
h
]:
Temperature coefficient for the high and the low
measuring current determined during calibration