Bosch PIN8 N1 Guía para resolver problemas Pagina 75

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MPH-02, MPB-02, MPD-02 Master Communication 4-21
DOK-INDRV*-MP*-02VRS**-FK01-EN-P
P-0-4083, Field bus: length of parameter channel
P-0-4084, Field bus: profile type
I/O Mode
Brief Description
The drive is operated in "positioning block mode without lag error with
encoder 1" (see also "Positioning Block Mode" in chapter "Operating
Modes").
In this operating mode, 64 programmable positioning blocks can be
selected and started via 6 bits (in the 16 bit wide control word).
The jog function can be activated in P-0-4068, Field bus: control
word IO. As the 1
st
secondary operating mode, "drive-controlled
positioning" was set (see also "Drive-Controlled Positioning" in chapter
"Operating Modes").
For PROFIBUS-DP it is possible to activate an optional parameter
channel with P-0-4083, Field bus: length of parameter channel (a
maximum of 6 words). (default: P-0-4083 = 0 without parameter
channel)
In the I/O mode each real-time channel consists of at least one word
(16 bits), the field bus control word (P-0-4068) and the signal status
word (S-0-0144).
In the real-time channel of the field bus the data configured in P-0-4081,
Field bus: config. list of cyclic command value data ch. are
transmitted from master to drive.
Parameters Format
P-0-4068, Field bus: control word IO
u16 (1 word)
In the real-time channel of the field bus the data configured in P-0-4080,
Field bus: config. list of cyclic actual value data ch. are transmitted
from drive to master.
Parameters Format
S-0-0144, Signal status word
u16 (1 word)
Data direction Word1
master slave
P-0-4068
slave master
S-0-0144
Status Machine in I/O Mode
Note: The content of parameter P-0-4068, Field bus: control word
IO is only relevant for profile type "I/O mode"
(P-0-4084 = 0xFF82).
The bits in parameter P-0-4068, Field bus: control word IO are fixed by
Bosch Rexroth and cannot be changed by the user. If additional control
bits should be required, the parameter S-0-0145, Signal control word
has to be configured accordingly and transmitted to the real-time channel
of the field bus.
Features
Structure of Real-Time Channel
Master Å Slave
Structure of Real-Time Channel
Slave Master
Content of Data in Real-Time
Channel
Field Bus Control Word in I/O
Mode
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