2 telegram types, Telegram types, 7data transfer – Lenze E84AYCEO User Manual

Page 54

Advertising
background image

7

Data transfer

7.2

Telegram types

54

Lenze · E84AYCEO communication module (EtherNet/IP™) · Communication Manual · DMS 3.0 EN · 10/2013 · TD17

_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

7.2

Telegram types

The "implicit message" and "explicit message" telegram types are transmitted between the host

system (scanner) and the drive (adapter).

Implicit messages (I/O data transfer)
"Implicit messages" are transmitted or received according to the producer/consumer principle.

There is one transmitter and no receiver or an optional number of receivers.
The "cyclic I/O data" transmission mode is supported. The scanner and the adapter use "cyclic I/O

data" to generate their data independently of each other, which are then transmitted depending on

a timer. The user must set the value of the timer in the scanner.

Explicit messages (parameter data transfer)
"Explicit messages" serve to configure and parameterise the individual EtherNet/IP nodes.
Two nodes have a client/server relationship:

The client transmits a job (request). The server receives this job and tries to accomplish it. The server

then transmits the requested data (positive response) or an error message (negative response).

Advertising