turck BL20 Series - 10.5.3 Wiring diagram; 10.5.4 Process data mapping

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2020/09
10.5.3 Wiring diagram
10.5.4 Process data mapping
Process input data
Representation of HART-variables without unit according to ANSI/IEEE 754-1985 ”Standard for
Binary Floating-Point Arithmetic for microprocessor systems”.
n = offset of input data; depending on extension of station and the corresponding fieldbus.
Fig. 224: Connection options with base module BL20-S4x-SBBS
Data Byte Byte DP/
PN
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
Input n n + 3
Parameterizable HART-variable A
without unit
n + 1 n + 2
n + 2 n + 1
n + 3 n
n + 4 n + 7
Parameterizable HART-variable B
without unit
n + 5 n + 6
n + 6 n + 5
n + 7 n + 4
n + 8 n + 11
Parameterizable HART-variable C
without unit
n + 9 n + 10
n + 10 n + 9
n + 11 n + 8
n + 12 n + 15
Parameterizable HART-variable D
without unit
n + 13 n + 14
n + 14 n + 13
n + 15 n + 12
23
22
21
13
12
11
2414
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