3 ethercat, Ethercat – Pilz PSSnet GW1 MOD-EtherCAT User Manual
Page 19
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