Table of Contents
Advertisement
Programmer's Guide
2.3.5.2. State sector Y-axis (66 [42 Hex])
Using parameters the light curtain can be defined in Y- and X- axis as well as sectors (see chapter 1.1.1). The
response to this command sends for each sector of the Y-axis one bit, indicating "0" for not interrupted and "1" for
interrupted.
Table 39: Command 42 Hex
Command 66 [42 Hex]
Bit
0-7
Byte 3-8
* This command delays the response times according Operation manual (Part No. 104 906 Chapter 11.2)
2.3.6.
Event Mode
The point in time when the light curtain carries out a measurement effects the result. The following chapters
describe these effects.
The event mode is activated using the following parameters.
The event mode lends itself for recognizing objects. In an 'event', the controller sends a telegram "State sector X-
axis (65 [41 Hex])" and/or "State sector Y-axis (67 [43 Hex])". The points in time are not periodic.
In Figure 2, diverse objects pass through the Object100 light curtain on a conveyor belt with a constant speed. An
interruption in the light curtain or a change of a beam state (point in time E) triggers a transmission of a status
telegram.
Figure 2: The goods G1, G2, G3, G4 on the conveyor belt cause an event triggered
message (E)
2.3.7.
Limitation of data frequency using the event mode
Using the event mode (chapter 2.3.6) each change of beam status causes a telegram transmission. In an
application with a short light curtain, a telegram can be transmitted more than every 5 seconds. This can overload
the CAN network communication. Parameter 82 [52 Hex] (Table 19) offers the limitation of data transfer.
© CEDES Safety & Automation AG
Value
0
Table 40: Settings for event mode
Parameter
75 [4B Hex]
Periodic measuring
77 [4D Hex]
Event measuring
Response 67 [43 Hex]
Bit
Value
0-7
0
Byte 3
1-254
0-7
0
Byte 4
0-254
0
Zone Y1
Byte 5
:
:
7
Zone Y8
0
Zone Y9
Byte 6
:
:
7
Zone Y16
0
Zone Y17
Byte 7
:
:
7
Zone Y24
0
Zone Y25
Byte 8
:
:
7
Zone Y32
Value
Description
0
Periodic mode inactive
1
Event mode active
http://csa.cedes.com/
ObjectC 100
No interrupted beam
Lowest interrupted beam
No interrupted beam
Highest interrupted beam
0: Sector not interrupted
1: Sector interrupted
0: Sector not interrupted
1: Sector interrupted
0: Sector not interrupted
1: Sector interrupted
0: Sector not interrupted
1: Sector interrupted
17
Advertisement
Table of Contents
