ObjectC 100
Programmer's
Guide
12
http://csa.cedes.com/
© CEDES Safety & Automation AG
2.2.5.14.
Stop permanent scan with overhang monitoring (34 [22 Hex])
Table 22: Command 22 Hex
Command 34 [22 Hex]
Response 35 [23 Hex]
Bit Value
Bit Value
Byte 3
0-7
0
No beam interrupted
1-254
First interrupted beam 1)
Byte 4
0-7
0
No beam interrupted
1-254
Last interrupted beam 1)
Byte 5
0-7
0
No beam interrupted
1-254
Maximum number of effective beams
ever
interrupted
Byte 6
0-7
0
No beam interrupted
1-254
First beam interrupted at last scan
Byte 7
0-7
0
No beam interrupted
1-254
Last beam interrupted at last scan
Byte 3 - 8
0-7 0 not
used
Byte 8
0-7 0 No
overhang
detected
1
Overhang front detected 2)
2
Overhang back detected 3)
3
Overhang front and back detected
Note 1) The beams count from "fb_offset" to "lb_offset", considering the pitch factor
2) Overhang front means that an overhang is detected as the tray is pulled into the light curtain area.
3) Overhang back means that an overhang is detected as the tray is pulled out of the light curtain area.
4) The command ‘stop permanent scan with overhang monitoring’ may be repeatedly used. The information remains available and
will be reset at the next start command.
2.2.5.15.
Get overhang scan counter (36 [24 Hex])
The response to this command contains the number of light curtain scans, which have been made since the last
command permanent scan with overhang monitoring (command 32). The scan counter is stopped with the
command stop permanent scan with overhang monitoring. The value counts up to 2.2E12 (4 byte) and starts at 0
again (overflow).
Table 23: Commend 1A Hex
Command 36 [24 Hex]
Response 37 [25 Hex]
Bit Value
Bit
Value
Byte 3
0-7
0-255
Number of scans (LSB)
Byte 4
0-7
0-255
Number of scans
Byte 5
0-7
0-255
Number of scans
Byte 6
0-7
0-255
Number of scans (MSB)
Byte 3 - 8
0-7 0
Not
used
Byte 7 - 8
0-7 0 Not
used
