GE Industrial Solutions AF-600 FP Profibus DP - Manual (Page 40)

5 How to Access the Parameters
5.1 Parameter Access in General
In an automated system, frequency converter parameters can be accessed either from the process controller (i.e. PLC), or from various kinds of HMI equipment.
For parameter access from controllers and HMI, please observe the following:
AF-650 GP & AF-600 FP drive parameters are located in four separate set-ups. Parameter access in the drive is performed via several separated parameter
channels, which can be used individually to access a certain parameter set-up. Select the desired set-up in par. K-11 Edit Set-up or par. PB-70 Edit Set-up.
Using this mechanism it is possible to Read or Write to and from parameters in a certain set-up from a master class 1, e.g. a PLC, and simultaneously access
parameters in a different set-up from a master class 2, e.g. a PC tool, without interfering with the set-up selection for the programming sources.
Parameters can be accessed via the following sites:
Keypad on AF-650 GP & AF-600 FP drive
GE Drive Protocol on RS485 or USB
Cyclical data access on DP V0 (PCV Channel)
PROFIBUS Master Class 1
PROFIBUS Master Class 2 (3 connections possible)
Please note that although these parameter channels are separated, data conflict can occur if write to parameters is made from a HMI unit
into a set-up which is actively in use by the frequency converter or the process controller (e.g. a PLC).
5.1.1 Data Store
Parameter write via the PCV channel (DP V0) will be stored in RAM only. If data has to be stored in Non Volatile Memory, the par. PB-71 Profibus Save Data
Values can be used for storing one or more set-ups.
Using DP V1 access, parameters can be stored either in RAM or Non-Volatile Memory by choice of a specific Write Request command. Non-stored data can at
any time be stored in non-volatile memory by activating par. PB-71 Profibus Save Data Values.
AF-650 GP/AF-600 FP Profibus DP Operating Instructions
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