AVENTICS | AES I/O Modules, Analog | R412018147–BAL–001–AG
6.3.4.2 Process data of the inputs for "8 bits" data format
Table 30:
Structure of the process data of the inputs for "8 bits" data format (4AI4M12E)
Bit 7
Bit 6
Bit 5
D7
D6
D: Value of the bit (0/1)
Table 31:
Value ranges of the process data for "8 bits" data format (4AI4M12E)
Nominal value of the
Resolution
measurement range
0 to 10 V
40 mV/bit
2 to 10 V
32 mV/bit
to
0
20 mA
80 μA/bit
to
4
20 mA
64 μA/bit
D.. : Value of the bit (0/1)
1)
In this operating mode, monitoring for a wire break is not possible (see "6.2 Diagnostic data" on page 86).
Conversion to the decimal value 1000 can be achieved in the PLC by a left-shift 2x.
Bit 4
Bit 3
D5
D4
D3
Value
0.0 V
0.04 V
10.0 V
10.2 V
> 10.2 V
2.0 V
2.032 V
10.0 V
10.16 V
> 10.16 V
0.0 mA
0.08 mA
20.0 mA
20.4 mA
> 20.4 mA
4.0 mA
4.064 mA
20.0 mA
20.32 mA
> 20.32 mA
Structure of the I/O Module Data
Bit 2
Bit 1
Bit 0
D2
D1
D0
Example
D0–D7
D0–D7
Decimal
Hexadecimal
0
00
1
01
250
FA
255
FF
255
FF
1)
1)
0
00
1
01
250
FA
255
FF
255
FF
0
00
1
01
250
FA
255
FF
255
FF
1)
1)
0
00
1
01
250
FA
255
FF
255
FF
95