Siemens F01340

What the Fault Means

Fault: Topology: Too many components on one line

Likely causes

• For the selected communications clock cycle, too many DRIVE-CLiQ components are connected to one line of the Control Unit
• Fault value (r0949, interpret hexadecimal): xyy hex: x = fault cause, yy = component number or connection number
• 1yy: The communications clock cycle of the DRIVE-CLiQ connection on the Control Unit is not sufficient for all read transfers
• 2yy: The communications clock cycle of the DRIVE-CLiQ connection on the Control Unit is not sufficient for all write transfers

Solution and Safe First Checks

1. check the DRIVE-CLiQ wiring.
2. reduce the number of components on the DRIVE-CLiQ line involved and distribute these to other DRIVE-CLiQ
3. increase the sampling times (p0112, p0115, p4099). If necessary, for DCC or FBLOCKS, change the assignment of
4. if necessary, reduce the number of cyclically calculated blocks (DCC) and/or function blocks (FBLOCKS).
5. reduce the function modules (r0108).
6. establish the conditions for operation with a current controller sampling time of 31.25 µs (at the DRIVE-CLiQ line,

Safety: do not work inside the panel without isolating the power; if unsure, consult a qualified technician.

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