Operating Instructions
Chapter
11
UE4740
8020182/1CUO/2022-08-26
©
SICK AG • Industrial Safety Systems • Germany • All rights reserved
37
Subject to change without notice
Annex
11
Annex
11.1
Structure of the UE4740 process images
The process images can be configured freely with the CDS. Predefined process images can
also be used for each sensor type.
A process image that is a maximum of 6 bytes long is available. All the information pro-
vided by a connected sensor can be linked in this image. In addition results of the logic
evaluations or information from the process input image can be used.
If you use the predefined process images, the process image is as follows.
Range
Position
Description
Input signals from the
gateway to the PLC
Unoccupied
Bytes 0
–
1
2 × 8 bits (Boolean)
EFI connection 1
Bytes 2
–
3
2 × 8 bits (Boolean)
EFI connection 2
Bytes 4
–
5
2 × 8 bits (Boolean)
PROFIsafe header
Bytes 6
–
9
Reserved for PROFIsafe
data
Output signals from the
PLC to the gateway
Unoccupied
Bytes 0
–
1
2 × 8 bits (Boolean)
EFI connection 1
Bytes 2
–
3
2 × 8 bits (Boolean)
EFI connection 2
Bytes 4
–
5
2 × 8 bits (Boolean)
PROFIsafe header
Bytes 6
–
9
Reserved for PROFIsafe
data
11.2
Process images of the EFI connections
The process images of the EFI connections are two bytes long each. Their structure
depends on the device that is connected to the respective EFI connection.
Please consult the operating instructions of the corresponding device when using
device-specific functions.
Tab. 16: Structure of the
UE4740 process images
Note
