BONFIGLIOLI Vectron Agile Series, Communications Manual

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Profibus DP V1 Agile 35 06/2010
Handling of the Objects
16.3 Process Data Channel
In this chapter the handling of the PZDs is described. The mandatory process data objects PZD1/2 are
described in chapters 16.4.1 "PZD1, Control Word / Status Word" and 16.4.5 "PZD2, Reference Value
/ Actual Value".
The PZD 3 … 18 objects can be used in an application specific way. Inside the inverter these objects
are represented as sources for PZD Out objects (data received from Profibus master) and input
parameters for sources (data to be sent to the Profibus master).
Note: Input/output are defined from the Profibus master point of view.
16.3.1 Data Types of OUT/IN-Objects
Data Type "Boolean"
The valid values for boolean are FALSE/0x0000 and TRUE/0xFFFF.
Data Type – Boolean
Boolean
value
Data Content
hexadecimal
OUT/IN-PZDn Boolean FALSE 0x0000
OUT/IN-PZDn Boolean TRUE 0xFFFF
n = 3 … 18
Data Type "Word"
The "Word" data type can be used for percentage, current and torque variables. Current and torque
are possible in applications with field-orientation. The scalings in question are described below.
Word Data Type "Percentage"
The value range for percentage values is -300.00 to +300.00%. The values in OUT/IN-PZDn are
displayed with a multiplication factor of 100.
Word Data Type – Percentage
Data Content
hexadecimal
Data Content
decimal
Logical
Interpretation
OUT/IN-PZDn Word 0x8AD0 - 30000 - 300,00%
OUT/IN-PZDn Word 0x0000 0 0,00%
OUT/IN-PZDn Word 0x7530 + 30000 + 300,00%
n = 3 … 18
Word Data Type "Current"
For the current, calculation must be done in the device-internal scaling.
The scaling is:
Reference value = (Reference current [A] / Scaling current [A]) · 2
13
2
13
= 8192 (decimal) = 0x2000 (hexadecimal)
Handling of the Objects
Word Data Type "Torque"
For the torque specification, the calculation must be done in the device-internal scaling. The scaling
for a torque value is identical to the specification of the reference current (see Current). If the
machine is operated with nominal flux, a reference torque corresponds to a reference current.
Note: The equation stated for current (torque) applies for operation with nominal flux. If a
machine is operated in the field weakening area, this is to be considered in the
specification values.
If the current or torque variables are used, please take into account the device-specific
scaling.
Data Type "Long"
The "Long" data type can be used for the frequency and position variables.
Frequencies use the internal notation of the inverter
(xxx Hz / 4000 Hz) * 2
31
.
Examples:
50,00 Hz

(50,00 / 4000,00) * 2
31
= 0x01999999
-80,00 Hz

(-80,00 / 4000,00) * 2
31
= 0xFD70A3D8
Data Type – Long
Data Content
hexadecimal
Data Content
decimal
Logical
Interpretation
OUT/IN-PZDx/y Long 0xnnnnmmmm Application-
specific
Application-
specific
x/y = 3/4, 5/6, … 17/18