Operating Instructions
Chapter
12
UE4155
8010178/TF82/2010-03-05
© SICK AG • Industrial Safety Systems • Germany • All rights reserved
67
Subject to change without notice
Annex
12.2
Process images
12.2.1
Process-image structure of the UE4155 PROFIsafe
Area
Position
Description
Field-signal connections
Bytes 0–1
2 × 8 bit (boolean)
SDL connection 1
Bytes 2–3
2 × 8 bit (boolean)
SDL connection 2
Bytes 4–5
2 × 8 bit (boolean)
Input signals from the
bus node to the FPLC
PROFIsafe header
Bytes 6–9
Reserved for PROFIsafe
data
Field-signal connections
Bytes 0–1
2 × 8 bit (boolean)
SDL connection 1
Bytes 2–3
2 × 8 bit (boolean)
SDL connection 2
Bytes 4–5
2 × 8 bit (boolean)
Output signals from the
FPLC to the bus node
PROFIsafe header
Bytes 6–9
Reserved for PROFIsafe
data
12.2.2
Process images of the field-signal connections
Input signals of the field-signal connections to the FPLC
Position (Byte/Bit)
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
Field-signal connection
4
3
2
1
Description
In B
In A
In B
In A
In B
In A
In B
In A
Position (Byte/Bit)
1.7
1.6
1.5
1.4
1.3
1.2
1.1
1.0
Field-signal connection
8
7
6
5
Description
In B
In A
In B
In A
In B
In A
In B
In A
Tab. 29: Process image of the input signals from the field-signal connections to the FPLC
Output signals from the FPLC to the field-signal connections
Position (Byte/Bit)
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
Field-signal connection
4
3
2
1
Description
Out B
Out A
Out B
Out A
Out B
Out A
Out B
Out A
Position (Byte/Bit)
1.7
1.6
1.5
1.4
1.3
1.2
1.1
1.0
Field-signal connection
8
7
6
5
Description
Out B
Out A
Out B
Out A
Out B
Out A
Out B
Out A
Tab. 30: Process image of the output signal from the FPLC to the field-signal connections
12.2.3
Process images of the SDL connections
The process images of the SDL connections are all two bytes in length. Their structure
depends on the device, which is connected to the corresponding SDL connection. To
this end, please read the operating instructions of the UE4155 function package for the
device in question.
Please consult the operating instructions of the corresponding device when using
device-specific functions.
Tab. 28: Process-image
structure of the UE4155
PROFIsafe
Notes