VIPA 021-1BB00 - Page 58

Chapter 4 Analog Input Manual VIPA System SLIO
4-14 HB300E - SM - Rev. 09/38
In the following there are the measuring ranges with function-number listed,
which were supported by the analog module.
With FFh the corresponding channel is deactivated.
The formulas listed here allow you to transform an evaluated measuring
value (digital value) to a value assigned to the measuring range (analog
value) and vice versa.
Measuring range
(function number)
Current (I) Decimal (D) Hex Range Formulas for
calculation
23.52 32511 7EFFh overrange
20mA 27648 6C00h
10mA 13824 3600h
0mA 0 0000h
nominal range
0 ... 20mA
Siemens S7 format
(31h)
-3.52 -4864 ED00h underrange
20
27648
I
D ⋅=
27648
20
⋅= DI
25.00mA 20480 5000h overrange
20mA 16384 4000h
10mA 8192 2000h
0mA 0 0000h
nominal range
0 ... 20mA
Siemens S5 format
(41h)
-4.00mA -3277 F333h underrange
20
16384
I
D ⋅=
16384
20
⋅= DI
Measuring range
(function number)
Current (I) Decimal (D) Hex Range Formulas for
calculation
22.81 32511 7EFFh overrange
20mA 27648 6C00h
12mA 13824 3600h
4mA 0 0000h
nominal range
4 ... 20mA
Siemens S7 format
(30h)
1.19mA -4864 ED00h underrange
16
4
27648
−
⋅=
I
D
4
27648
16
+⋅= DI
24.00mA 20480 5000h overrange
20mA 16384 4000h
12mA 8192 2000h
4mA 0 0000h
nominal range
4 ... 20mA
Siemens S5 format
(40h)
0.8mA -3277 F333h underrange
16
4
16384
−
⋅=
I
D
4
16384
16
+⋅= DI
Function-number
channel x