User manual

Detailed descriptions of I/O modules | Analogue input module UR20-4AI-UI-16
178 1432790000/03/02.2014Manual u-remote
MeasurementrangeUR20-4AI-UI-16
Measurementrange Voltage(U) Decimal(D) Hexadecimal Range Conversion
0 … 5V
Siemens S5-format
5,88V 19268 0x4B44 Overloading
D= 16384 x U / 5
U=D x 5 / 16384
5V 16384 0x4000
Nominal range2,5V 8192 0x2000
0V 0 0x0000
±5 V
Siemens S7-format
5,88V 32511 0x7EFF Overloading
D= 27648 x U / 5
U=D x 5 / 27648
5V 27648 0x6C00
Nominal range
2,5 13824 0x3600
0 V 0 0x0000
-2,5 V -13824 0xCA00
-5V -27648 0x9400
-5,88V -32511 0x8100 Underloading
±5 V
Siemens S5-format
5,88V 19268 0x4B44 Overloading
D= 16384 x U / 5
U=D x 5 / 16384
5V 16384 0x4000
Nominal range
2,5 8192 0x2000
0 V 0 0x0000
-2,5 V -8192 0xE000
-5V -16384 0xC000
-5,88V -19268 0xB4BC Underloading
The following applies for all S7 ranges:
input value > overload range = 0x7FFF
input value < underload range = 0x8000
Additional status bits are set for S5
DigitalmeasuredvaluerepresentationinSiemensS5format
Data bit 7 6 5 4 3 2 1 0
Byte 0 (High Byte) 2
12
2
11
2
10
2
9
2
8
2
7
2
6
2
5
Byte 1 (low byte) 2
4
2
3
2
2
2
1
2
0
A F O
A: 0 = not active
1 = active
F: 0 = no line break
1 = line break
O: 0 = 0 to 4095 units
1 = ±4096 units (overflow)
Representation in two's complement
2
12
= VZ in representation as amount and signs