TMS88D-Pro / TMM88D-Pro - Node-ID configuration via LSS selective?

1. What is LSS Selective?

LSS Selective (CiA‑305) allows a CANopen master to target one specific device by matching its four unique identification values:

1. Vendor ID
2. Product Code
3. Revision
4. Serial Number

Only after all four values are matched does the sensor enter the selective configuration state and accept Node‑ID / Bitrate changes.

2. Why use LSS Selective with the TMM88D?

• Multiple CANopen sensors present in the network.
• Global LSS would activate all devices simultaneously → collisions.
• Selective LSS reliably isolates exactly one target device.

3. LSS Selective vs. LSS Global

• Global LSS: Affects all LSS‑capable devices on the bus → use only if exactly one device is connected.
• Selective LSS: Affects only the uniquely identified device → recommended if several devices are present in the network.

4. Default LSS Identity Values of TMM88D-Pro

• Vendor ID: 0x01000056 / 16777302
• Product Code: 0x0011632D / 1139501
• Revision: 0x0 / 0 (depends on FW)
• Serial Number: 0x017FE97B / 25160059 (unique serial number see type label)

This picture shows an example of the telegram sequence to change the TMM88D default Node-ID: 10 to 5.

Command sequence with comment:
0x7e5: 40 56 00 00 01 00 00 00 - Switch State Selective – Vendor ID

0x7e5: 41 2d 63 11 00 00 00 00 - Switch State Selective – Product Code

0x7e5: 42 00 00 00 00 00 00 00 - Switch State Selective – Revision Number

0x7e5: 43 7b e9 7f 01 00 00 00 - Switch State Selective – Serial Number

0x7e4: 44 00 00 00 00 00 00 00 - Reply – LSS Selective Mode Activated

0x7e5: 11 05 00 00 00 00 00 00 - LSS Command – Set Node‑ID to 5

0x7e4: 11 00 00 00 00 00 00 00 - Reply - Node‑ID Set

0x7e5: 17 00 00 00 00 00 00 00 - Store Configuration

0x7e4: 17 00 00 00 00 00 00 00 - Reply – Store ACK

Those command sequence can be executed via a CANopen tool like PCAN-View which allows to send direct telegrams. As alternative some PLCs and CANopen tool offer a LSS-Master, like in the example in below. A LSS-Master offer a bit more comfort and is user frinedly.