Operating instructions
Operating Instructions Chapter 3
C4000 Standard/Advanced
8009861/WA65/2012-06-12 © SICK AG • Industrial Safety Systems • Germany • All rights reserved 15
Subject to change without notice
Product description
3.2.3 Cascading
To provide effective point-of-operation guarding, a maximum of three C4000 can be
connected in series as a “cascade”. The device connected to the control cabinet is the
main sensor, called host. The subsequent sensors are called guest (cf. Fig. 1 on page 14).
Devices in the default delivery status and devices that have not yet been used in a
cascaded system can be connected together and immediately form a basically functional
cascade. Note the following:
Guest systems adopt any beam coding configured on the host system.
Any blanking configured on the guest systems is deleted.
If safety light curtains are used in a cascaded system, the system position (host, guest 1 or
guest 2) is stored permanently in the device memory of the C4000. The device can no
longer be used as a standalone device or in a different system position. There is then no
chance of mistakes when setting up the system again after dismantling.
Reset the system position saved in the C4000 using the CDS or using the Host-Guest Plug
available as an accessory (see 12.7 “Accessories” on page 111).
Benefits of cascading
no additional external circuitry required Quick to connect
resolution and protective field height may differ among the individual systems
Limits of cascading
The maximum protective field width must be guaranteed for each individual system!
The maximum total number of beams must not exceed 480 beams in non-coded
operation, and a maximum of 405 beams in coded operation.
The maximum cable length between two cascaded systems must not exceed 3 metres.
3.2.4 Device variants
Different variants of the C4000 Standard/Advanced are available for various applications:
without extension connection,
can be used as a standalone system or as the last guest in a cascaded system
with M26 extension connection,
can be used as a standalone system, as a host, as the first or second guest in a
cascaded system
with M12 extension connection,
can be used as a standalone system, as a host, as the first or second guest in a
cascaded system
Use this type if you want to use the C4000 Guest.
Guest with M12 system connection,
C4000-Device variant for limited access,
can only be used as the last guest in a cascaded system
Note
Recommendation