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3 ethercat, Ethercat – Pilz PSSnet GW1 MOD-EtherCAT User Manual

Page 19

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Function description

Operating Manual PSSnet GW1 MOD-EtherCAT
1002692-EN-02

19

Data area

Modbus syntax

Example

FC 05

Write Single Coil

The connection Client writes

to one bit datum in the con-

nection Server,

data length = 1 Bit,

content: input data (send

data to 0x)

FC 06

Write Single Register

The connection Client writes

to one word datum in the

connection Server,

data length = 1 Word,

content: input data (send

data to 4x)

FC 15

Write Multiple Coils

The connection Client writes

to multiple bit data in the

connection Server,

data length = 1 Bit,

content: input data (send

data to 0x)

FC 16

Write Multiple Registers

The connection Client writes

to multiple word data in the

connection Server,

data length = 1 Word,

content: input data (send

data to 4x)

FC 23

Read/Write Multiple Regis-

ters

The connection Client reads

and writes multiple word data

within a telegram

(receive data from 3x and

send data to 4x)

EtherCAT

The manufacturer's ID, the device ID and any functions supported by a field device are de-
fined in a device description file. The device description file (Electronic Data Sheet, EDS) is
fieldbus-dependent. The content and format of a device description file are specified in the
fieldbus standard. The file is needed in order to include an unknown field device in the re-
spective fieldbus configuration tool and in order to configure the plant-specific require-
ments.
An EDS file in XML format is used for EtherCAT devices.

4.3