Cu-Link (Data Transfer Via Drive-Cliq) - Siemens SIMOTION D4x5-2 Commissioning And Hardware Installation Manual

7.5.9

CU-Link (data transfer via DRIVE-CLiQ)

Terms
The following table provides an overview of the terms used in this section.
Table 7-9 Terms used
Designation
CU-Link communication
CU_I (also DO1)
CU_CX32 (also DO1)
CU_LINK
CU_NX_CX
DO
CU-Link
For communication between Controller Extension CX32‑2 and Control Unit SIMOTION
D4x5‑2, not only PROFIBUS-Integrated but also a further fast communication channel is
available for communication with the drives. This communication channel is named CU‑Link
and can only be used via BiCo interconnections.
Communication via the CU‑Link is performed in the very fast DRIVE-CLiQ basic cycle clock 0
(r0110[0]) with 125 µs. The CU‑Link is therefore especially suitable for transmission of the
signal "Infeed ready" between the SINAMICS Integrated of the SIMOTION D4x5‑2 and the
connected Controller Extensions CX32‑2. CU‑Link cannot be used for communication with a
CU320‑2.
For every CX32‑2 that is connected via the DRIVE-CLiQ Port X100 to X105 on a SIMOTION
D4x5‑2, a separate CU‑Link communication channel exists.
The CU‑Link communication channel consists of
● two data transfer channels for bit-by-bit transmission and receipt of information
(p8500[0..7], p8501[0..21], and r8510.0‑7, r8511.0‑21)
● four data transfer channels for word-by-word transmission and receipt of information (p8502
to p8505, and r8512 to r8515). These data transfer channels also ahve a scaling factor that
can be set in parameter p8520[0..3].
Observe the notes below in this section under "Word-by-word data transfer via p850x/r851x
(CU‑Link)".
SIMOTION D4x5-2
Commissioning and Hardware Installation Manual, 03/2018, A5E33441636B
7.5 Additional information on configuring the SINAMICS Integrated
Explanation
Communication between Controller Extension CX32‑2 and SINAMICS Integrated of a
SIMOTION D4x5‑2 based on DRIVE‑CLiQ communication
CU drive object of the SINAMICS Integrated
CU drive object of the Controller Extension CX32‑2
Each Controller Extension is represented on the SINAMICS Integrated of a D4x5‑2 by
a drive object CU_LINK
CU drive object for CX/NX
Term usually used in SINAMICS manuals for drive extensions for SIMOTION (CX32‑2)
and SINUMERIK (NX1x.3)
Drive object (DO)
Commissioning (software)
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