![background image](http://html.mh-extra.com/html/sick/efi/efi_technical-information_1264332026.webp)
Chapter
4
Technical information
EFI
26
© SICK AG • Industrial Safety Systems • Germany • All rights reserved
8012622/Z098/2016-11-07
Subject to change without notice
Technical realization
4.4
Status information and control options for the EFI
devices
Status information and control commands are exchanged between the devices via EFI.
The following tables show the status information that can be accessed and the control
commands that are possible for ESPE, safety controllers as well as EFI gateways.
The information in square brackets reflects the names used in the CDS and in the
Flexi Soft Designer.
4.4.1
C4000 safety light curtain
Status information
Meaning/effect
OSSD on [OSSD]
•
Logical 1, if the OSSD of the C4000 is switched
on (green)
•
Logical 0, if the OSSD of the C4000 is switched
off (red)
Notes:
Host: In the case of a cascaded system, the
OSSD bit is a group indication for the entire
host/guest or host/guest/guest cascade
Guest 1/guest 2: The OSSD bit corresponds to
the status of the related guest.
Contamination [Weak]
•
Logical 1, on contamination of the front screen
Reset button pressed [Res. Pressed]
•
Logical 1, if the reset button is pressed
Reset required [Res. Req.]
•
Logical 1, if reset required
Status of the emergency stop
[EStop Active]
Logical 1, if the button connected to the
emergency stop input on the C4000 has been
pressed.
Teach-in active [Teach Active]
•
Logical 1, if a teach-in key-operated switch
connected to the C4000 has been operated
Status application diagnostic output
(ADO)
[ADO]
•
Logical 1, if the configurable application
diagnostic output (ADO) on the C4000 is
signaling, e.g., the contamination status, the
OSSD status or the emergency stop status
Note:
The message type depends on the
configuration of the C4000.
Status bypass [Bypass Active]
•
Logical 1, if a key-operated pushbutton for
bypass connected to the C4000 has been
operated
Virtual photoelectric switch 2 [VLS2]
•
Logical 1 = beam unoccupied
•
Logical 0 = beam interrupted
Virtual photoelectric switch 1 [VLS1]
•
Logical 1 = beam unoccupied
•
Logical 0 = beam interrupted
With the exception of the OSSD information, all status information always relates to the
safety light curtain polled (host, guest 1 or guest 2).
18)
ADO can be used for non-safety-related evaluations, e.g. weak signal output.
Note
Tab. 13: Status information
of the C4000 (data
from the
C4000)
Note