8 Packet Structures
8.1 Important Information
N O T I C E
The following functions are only available with VLT® Soft Starter MCD 500: Parameter management, dual motor control, digital
inputs, jog, current measurement in amperes, power information, warnings.
VLT® Compact Starter MCD 201 open-loop soft starters do not support motor current and motor temperature information.
8.2 Implicit Messaging (Cyclic Operation)
This section lists the requirements related to cyclic (implicit messaging) services for the EtherNet/IP module. The minimum cyclic
interval is 1 ms. All data is in little endian format.
8.2.1 Assembly Objects
Table 4: Supported Assembly Objects
Output (Originator⇒Target)
Input (Target⇒Originator)
8.2.2 Control Commands (Assembly Instance 104d)
To send control data from the scanner to the soft starter, use assembly class 04d (0x04), assembly instance 104d (0x68), attribute
03d (0x03).
8.2.2.1 Bytes 0–1: Command
0 = Stop command
1 = Start command
Changing this bit from 0 to 1 resets a trip.
0 = Use primary motor set when starting.
1 = Use secondary motor set when starting.
8.2.2.2 Bytes 2–3: Reserved
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Packet Structures
EtherNet/IP Module
Installation Guide