Lika XAC80 PB, Руководство пользователя, Страница: 41 / 60

XAC80 Profibus-DP
®
 DDLM_Data_Exchange:
It is used as "standard operation mode".
Used by the Master to send the
Preset value
; used by the Slave to transmit
the position and velocity values (see the “7.6 DDLM_Data_Exchange“ section
on page 49).

DDLM_Slave_Diag:
It is used when the power is turned ON and whenever the Master needs
diagnostic information from the Slave device (see the “7.7
DDLM_Slave_Diag“ section on page 52).
7.4 DDLM_Set_Prm
When the system is turned ON, configuration data set by the operator is sent to
the absolute encoder by the controller. Transmission of parameters depends on
the configuration chosen by the operator. Customarily data is sent
automatically while data setting is carried out through a user's interface
available in the controller's software (for instance, STEP7, see the “6.1 STEP7
configuration“ section on page 32).
However sometimes it is necessary to set some bits and bytes according to the
working specifications you want to set.
Data transmission is carried out in compliance with values set for the encoder
profile and shown in the following tables.
DDLM_Set_Prm with Class 1
Byte Parameter
0 … 9 Reserved for PROFIBUS network
10
Operating parameters
bit 0
Code sequence
bit 1
Class 2 functionality
bits 2 … 6 Reserved
bit 7 Exchange type
11 … 20 Reserved
MAN XAC80 PB E 1.0.odt 7 - Profibus® interface 41 of 60