Chapter 7. Profinet Io Data Description; Telegrams; Standard Telegram 81; Telegram 860 - Datalogic AMT58 Series Manual

CHAPTER 7
PROFINET IO DATA DESCRIPTION

TELEGRAMS

A telegram is a rigidly defined bit stream carrying data. In each telegram the data length
and the type of data which is sent to and from the IO controller is specified. PROFINET
interface devices communicate and stay in sync by sending telegrams each other. The
encoder supports two types of telegrams: Standard Telegram 81 and manufacturer-spe-
cific Telegram 860. They are described hereafter. Standard signals are fully described in
the
Cyclic Data Exchange - Std Signals, starting on page 50

Standard Telegram 81

The Standard Telegram 81 is the default telegram. It uses 4 bytes to output data from
the IO controller to the encoder and 12 bytes to input data from the encoder to the IO
controller.
Output data CONTROLLER => DEVICE
Input data DEVICE => CONTROLLER
IO Data
Actual value

Telegram 860

The Telegram 860 is a manufacturer-specific encoder telegram.
It offers the following functionality:
•
•
•
48
AMT58...PN
IO Data
Set point
2 bytes
1
ZSW2_ENC
32 bit current position value;
32 bit current velocity value;
using cyclic data, in the G1_XIST1_PRESET_VALUE signal a preset value can be
entered for the position (it must be executed by forcing high and then low the
.
2 bytes 2 bytes
1 2
STW2_ENC G1_STW
2 bytes 4 byes
2 3
G1_ZSW G1_XIST1
4 bytes
4 5 6
G1_XIST2