Lenze i55AE155F

9.7.8 Parameter data transfer
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The acyclic/non-cyclic data access (service access) provides a procedure for the PLC (scan-
ner) to access any drive or device parameter.
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This type of parameter access is typically used for ...
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monitoring or the not me-controlled parameter access with low priority;
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wring parameter data (assembly data) for controlling the inverter (adapter).
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For this purpose, the device supports several methods.
Explicit Messaging
An explicit message is a logic instrucon in the PLC program for the message transfer. It can be
used to read or write a parameter seng or the data of an EtherNet/IP node (assembly data).
If the Allen-Bradley control systems»CompactLogix™«, »ControlLogix®« and »SoLogix™« are
used, the "Explicit Message" instrucon provides the funconalies described in the following
secons. Further PLC types can be found in the programming documentaon of the PLC.
General drive variables (parameters and subindices) are contained in class "0x6E". The
instance is the index number of the parameter and the aribute is the subindex number. If no
subindex is available, the aribute must be set to "0". The aribute value "1" is only suppor-
ted for those clients that do not support the aribute value "0".
All these variables have the data type SINT (8 bit, 1-byte objects), INT (16 bit, 2-byte objects)
or DINT (32 bit, 4-byte objects).
The device parameters and the PLC program variables must have the same data lengths!
Conguring the network
EtherNet/IP
Parameter data transfer
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