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ANALOG IN 15 BIT VOLTAGE/CURRENT 8CH IC220ALG221
Formats for Representation of Measured Values
To ensure that the terminal can be operated in previously used data formats, the measured value re-
presentation can be switched to different formats. The "IB IL" format is the default.
Abbreviations used in the following tables:
OR
Overrange
UR
Under range
"IB IL" Format
The measured value is represented in bits 14 to 0. An additional bit (bit 15) is available as a sign bit.
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 "IB IL" format (15 bits)
15
14
13
SB
SB
Sign bit
16
12
11
10
9
and < 8100
hex
8
7
6
5
Analog value
indicate an error.
hex
4
3
2
1
0
6226B_GE
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