BONFIGLIOLI act 401 Instrucciones de operaciones descargar pdf (Pagina 30)

06/05 29

4.10.2 Communication via field bus connection (SDO1)

If a frequency inverter has been defined as the system bus master and equipped with

a field bus interface, access to the parameterization of all the nodes in existence on

the system bus is possible by means of this field bus interface via the first SDO chan-

nel (SDO1). An extension has been created in the protocol frame of the field buses fo

this purpose.

Attention! The prerequisite for this mechanism is that the identifier settin

for the

first SDO channel (SDO1) corresponds to the Predefined Connection Set.

The parameter addressed must also exist in the system bus master.

4.10.2.1 Profibus-DP

If an object with communication channel (PKW) is used in Profibus-DP, access to all

the other nodes on the system bus can be done via it. The structure of the communi-

cation channel permits an additional addressin

of a system bus node. This is done b

the use of an unused byte in the communication channel.

Communication channel PKW

0 1 2 3 4 5 6 7

PKE Index - Data

K/SPM Parameter

number

Data set Node-ID

system bus

Byte 3 is used to transmit the Node ID of the required node on the system bus. If byte

3 = 0, the master inverter of the system bus is addressed.

he display is binar

(0...63).

4.10.2.2 RS232/RS485 with VECTRON bus protocol

In the VECTRON bus protocol, there is a byte in the tele

ram header that is always

transmitted with 0 as a standard feature.

ENQUIRY

0 1 2 3 4 5 6

Address 0 p n n n ENQ

Node-ID

system bus

Data set Parameter number

SELECT

0 1 2 3 4

Address STX 0 p n n n ...

Node-ID

system bus

Data set Parameter number

Byte 1 in the enquiry and byte 2 in the select tele

ram are not defined and are used to

transmit the Node ID of the required node on the system bus. If this byte = 0, the

master inverter of the system bus is addressed. The display is ASCII correspondin

the conventions for the display of the address in the VECTRON bus protocol.

Note: If there is an NAK fault messa

e, the error is to be read out from the

system bus master with node ID = 0 via parameter 11!

1 2 ... 25 26 27 28 29 30 31 32 33 34 35 ... 72 73

Comentarios a estos manuales

Sin comentarios

BONFIGLIOLI act 401 Instrucciones de operaciones Pagina 30

Comentarios a estos manuales

Relacionado con productos y manuales para Adaptadores E Inversores De Energía BONFIGLIOLI act 401