5 CoLa2 interface of the safety laser scanner
Overview
C
oLa2 (Command Language 2) is a protocol from SICK, with which a client (control, PC
etc.) can access suitable SICK sensors via a network (TCP/IP) or USB.
The CoLa2 interface of the device allows you to request information from the device (to
read sensor variables) or to carry out routines on the device (to call up sensor meth‐
ods).
Figure 8: Cola2 architecture
Important information
DANGER
D
anger of using CoLa2 for safety function
CoLa2 may only be used for general monitoring and control tasks.
b
Do not use CoLa2 for safety-related applications.
Device-specific deviations
•
B
yte sequence: The safety laser scanner uses the Little Endian format for the data
according to the bytes Cmd and Mode (see "Layer 7.2, command layer", page 30)
•
The TCP/IP for the CoLa2 communication of the safety laser scanner is port 2122
•
A CoLa2 telegram can be split into fragments. The client must re-combine the frag‐
ments
•
Variables and methods of the safety laser scanner can only be called up via index
(and not via their names)
•
The safety laser scanner does not support any events
•
The safety laser scanner does not support any SICK sensor networks. The HubC-
ntr and NoC bytes in the header of layer 7.1, Message Layer, must therefore be 0
and the optional element may not be used.
•
The safety laser scanner only sends one answer after a method invocation. The
answer to a successful method invocation is: Cmd = "A", Mode = "I", Data =
(UInt:MethodIndex)[(RetVal)]
Further topics
•
"Appendix B: C
ommunication via CoLa2", page 29
•
"Appendix C: CoLa2 variables and methods of the safety laser scanner", page 37
COLA2 INTERFACE OF THE SAFETY LASER SCANNER 5
8022708/2019-04-15 | SICK T E C H N I C A L I N F O R M A T I O N | microScan3, outdoorScan3
17
Subject to change without notice
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