Explicit Access Of Parameters; Parameter Arrays; Using A Codesys Based Plc; Lost Communications Trip - Parker AC30 Serie Manual Del Producto

A-24
Modbus TCP

Explicit Access of Parameters

Explicit access of the AC30 parameters is possible via the vendor specific object. Details of this are given in the section CIP Objects – Vendor
Specific Object.
A parameter value may be read or written via Class 64h, Attribute 5h. The instance number is the same as the parameter number (PNO). The
supported services are Get Attribute Single and Set Attribute Single.
Strings parameters use the SHORT_STRING format – the string is preceded by a single byte that specifies the length of the string.

Parameter Arrays

Parameter arrays may be accessed either as a whole or as a single element.
Using the parameter number (instance number) that represents the whole array with attribute 5h will return or modify the contents of all
parameters.
Using the parameter number that represents a single element will return or modify only that element.
String arrays may not be accessed as a whole array, but may be accessed via each element.

Using a CoDeSys Based PLC

CoDeSys based PLCs can access parameters explicitly using the function blocks Get_Attribute_Single and Set_Attribute_Single from the
library EtherNetIP Services.

Lost Communications Trip

A trip may be issued by the inverter on the loss of all Class1 connections of the EtherNet/IP adapter. To enable this, set the parameter 3129
EtherNet IP Trip to LOSS OF CONNECTION and set the ETHERNET IP BREAK bit in the parameter 0730 ENABLE 33 – 64.
AC30 series Variable Speed Drive