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"Standardized Display" Format
The data is represented in bits 14 to 0. An additional bit (bit 15) is available as a sign bit.
In this format, data on the measuring range is standardized and represented in such a way that it in-
dicates the corresponding value without conversion.
In this format, one bit has the following validity for the measuring ranges stated:
Measuring Range
0 V to 5 V; ±5 V
0 V to 10 V; ±10 V
0 V to 25 V; ±25 V
0 V to 50 V
0 mA to 20 mA; 4 mA to 20 mA
0 mA to 40 mA
This format supports extended diagnostics. Values > 8000
The following diagnostic codes are possible:
Code (hex)
Error
8001
Overrange
8002
Open circuit
8004
Measured value invalid/no valid measured value avai-
lable (e.g., because the channel was not configured)
8010
Configuration invalid
8020
I/O supply voltage faulty
8040
Module faulty
8080
Under range
Measured value representation in "standardized display" format (15 bits):
15
14
13
SB
SB
Sign bit
6226B_GE
ANALOG IN 15 BIT VOLTAGE/CURRENT 8CH IC220ALG221
12
11
10
9
Validity of One Bit
1 mV
1 mV
1 mV
10 mV
1 µA
10 µA
and < 8100
hex
8
7
6
Analog value
indicate an error.
hex
5
4
3
2
1
0
23
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