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4-42
Master Communication
Features
parameter channel
cyclic data channel:
P-0-04071, Field bus: length of cyclic command value data ch.
P-0-04082, Field bus: length of cyclic actual value data channel
Fig. 4-21: Structure of cyclic data channel
Note:
To simplify field bus communication Bosch Rexroth makes
available function blocks for different programmable logic
controllers (PLCs). The principles applied to the function
blocks can be easily used for other field bus masters.
The slave PROFIBUS-DP circuit with master communication module PL
has the following functional features:
• support of RS485 interfaces according to IEC61158-2
• support of all data rates according to IEC61158-2, with exclusive use
of PROFIBUS-DP (9.6 kBaud, 19.2 kBaud, 45.45 kBaud, 93.75 kBaud,
187.5 kBaud, 500 kBaud, 1.5 MBaud, 3 MBaud, 6 MBaud, 12 Mbaud)
• automatic baud rate detection
• configurable cyclical data up to 8 parameters (incl. field bus control
word
and
field
bus
(→ max. 30 bytes or 15 words)
• additional optional parameter channel in the cyclic channel with up to
16 byte (8 words)
• monitoring of the cyclical data exchange (watchdog function)
• LED for diagnosing the PROFIBUS interface
• supported DPV0 services:
• Slave_Diag (read diagnostic data)
• Get_Cfg (read configuration data)
• Set_Prm (send parameterization data)
• Chk_Cfg (check configuration data)
• Data Exchange (transfer I/O data)
• Global Control (synchronization)
• RD_Outp (read output data)
• RD_Inp (read input data)
• parameter access with DPV1-class-1 services
• DDLM_Initiate (establishment of connection)
• DDLM_Read (acyclic read access)
• DDLM_Write (acyclic write access)
• DDLM_Abort (connection clearance)
• DDLM_Idle (connection monitoring)
• support of up to five DPC1-class-2 connections
• supported field bus profiles:
• 0xFF82: I/O mode with configurable real-time data
• 0xFFFE: freely configurable mode
MPH-02, MPB-02, MPD-02
process data channel
DF000094v01_en.fh7
status
word)
in
both
DOK-INDRV*-MP*-02VRS**-FK01-EN-P
data
directions
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