Lenze Drive PLC - Network Management (NMT)

System bus (CAN) with Ser vo PLC & Drive PLC
General information
2-5
l PLC-Systembus EN 1.1
2.4 Network management (NMT)
Structure of the CAN telegram used for network management:
11 Bit 2-byte user data
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• The master can use this telegram to make status changes for the entire CAN network.
Byte 1: Command
Command
(hex)
Network status
after statu s
change
Info
01 operational The PLC can receive parameter and process data.
02 Stopped The PLC can receive network management telegrams; parameter and process data cannot be received.
80 Pre-operational The PLC can receive parameter data; process data are ignored.
8
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rate, etc.) are only accepted after a reset node.
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Byte 2: Device address
Device address Info
0 All bus participants are addressed. In this way, a status change can be implemented for all devices at the same time.
1 ... 63 Node address of the participant the status of which is to be changed.
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