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PXV...-F200-B17-V1D
Operation and communication
5.1.5.9
Quality Grade Information Module
Size
4 bytes
Data type: Unsigned8
Value range: See table below
Module ident number: 0x0000001A
Submodule ident number: 0x00000010A
Quality Grade
The quality grades enable constant monitoring of the code tape and the camera along the
entire traverse distance. This enables you to detect and act upon potential damage or contami-
nation of the code tape and camera at the earliest stage possible during commissioning and
normal operation. As a result, this maximizes the overall functional reliability of your plant, and it
means you are able to immediately localize the issue in the case of a fault.
Evaluations are made using a scale of 1 to 6. The value 1 is the best possible read quality. A
value greater than 3 or worse requires the camera and its path to be inspected. The value 7 sig-
nifies "No position" because no code was detected.
An evaluation that indicates poor quality as the outcome can be due to a misalignment or incor-
rect orientation, an incorrect measuring distance, or because the code tape has been affixed
incorrectly.
Input Data
Bits
7
Bytes
1
QLV07 QLV06 QLV05 QLV04 QLV03 QLV02 QLV01 QLV00 Quality grade of
2
DCO07 DCO06 DCO05 DCO04 DCO03 DCO02 DCO01 DCO00 Number of
3
RES07 RES06 RES05 RES04 RES03 RES02 RES01 RES00 Reserved
4
RES15 RES14 RES13 RES12 RES11 RES10 RES09 RES08 Reserved
Table 5.2
Type
Content
Input data
1 byte quality grade / 1 byte number of decoded codes
MSB first
MSB = most significant byte
6
5
4
Input data telegrams for quality grades
3
2
1
0
Function
the code tape
Decoded
Codes
29
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