CAN Communication
Layer Setting Services (LSS)
EPOS4 Communication Guide
3-40 CCMC | 2019-11 | rel8759
3.5.2.12 Identify Remote Slave
Detects LSS Slaves in the CAN network. Thereby, the LSS Master sends an identify remote slave request
with a single Vendor ID, a single Product Code and a span of Revision Numbers and Serial Numbers deter-
mined by a low and a high number to the LSS Slaves. All LSS Slaves which meet this LSS address range
(inclusive boundaries) answer by a identify slave response (cs = 0x4F).
Along with this protocol, a binary network search can be implemented for the LSS Master. This method sets
the LSS address range to the full address area first, then requests the identify remote slave. The range
(which comprises one or more responded LSS Slaves) will be split in two sub-areas. The request to the sub-
areas will be repeated until each LSS Slave has been identified («Identity object» 0x1018; EPOS4 Firm-
ware Specification).
Figure 3-37 LSS – Identify Remote Slave
3.5.2.13 Identify non-configured Remote Slave
Allows the LSS Master to detect presence of a non-configured device in the network. All LSS Slaves without
configured Node ID (0xFF) will answer with a command specifier 0x50 response.
Figure 3-38 LSS – Identify non-configured Remote Slave
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