IFM DTI600, Operating Instructions Manual

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DTI600
19
Byte Process data output Process data input
8 ignored UID 6
9 ignored UID 7
10 ignored 0x00
11 ignored 0x00
12 ignored 0x00
13 ignored 0x00
14 ignored 0x00
15 ignored 0x00
16 ignored 0x00
17 ignored 0x00
18 ignored 0x00
19 ignored 0x00
20 ignored 0x00
21 ignored 0x00
22 ignored 0x00
23 ignored 0x00
24 ignored 0x00
25 ignored 0x00
26 ignored 0x00
27 ignored 0x00
28 ignored 0x00
29 ignored 0x00
30 ignored 0x00
31 ignored Error value
10.3 Operating mode Auto read data
In the operating mode "Auto read data" the bytes 0 to 28 represent the data in the memory area of the
ID tag. The memory area is set by the parameters "Address for Auto Read/Write" and "Data Length for
Auto-Read/Write".
For memory areas with a data length of < 29 bytes the data remaining in the process image is filled
with the value 0x00.
The data in the process image is updated as soon as an ID tag enters the detection range. The data in
the process image is valid as soon as the status bit "Cmd End" is set.
If the ID tag leaves the detection range, the data is held in the process image according to the data
hold time. If the data hold time is exceeded and there is no ID tag in the detection range, the data is
filled with the value 0x00.
If the ID tag remains in the detection range, the data can be read with the status bit "Cmd Start". If
reading was unsuccessful, the error value is shown in the process image.
The smaller the "Length for Auto Read/Write" is set, the less time is needed for reading. That
means that the dwell time of the ID tag in the detection range can be shorter.
Byte Process data output Process data input
0 Command value = 0x01 Command value = 0x01
1 Status Status