Profibus, Profibus-dp slave communications overview, Profibus-dp – Delta RMC151 User Manual
Page 498: E profibus overview
RMC70/150 and RMCTools User Manual
The Communications Statistics window provides information on open PROFINET I/O
connections, including producing and consuming registers and the update time. The
statistics also provide advanced information on the Ethernet traffic.
6.9. PROFIBUS
6.9.1. PROFIBUS-DP Slave Communications Overview
PROFIBUS-DP Slave is the communication protocol available on the RMC75P and on the
RMC150E PROFIBUS module. PROFIBUS-DP is an open industrial fieldbus and is vendor
independent, allowing a large range of PLCs and other PROFIBUS masters to control the RMC.
The RMC performs as a PROFIBUS-DP slave, requiring a PROFIBUS-DP master to control it.
The type of the actual master—whether a PLC or other controller—is unimportant.
RMC PROFIBUS-DP Specifications
RMC75P
RMC150E PROFIBUS
Baud Rates
9.6Kbaud to 12Mbaud
Product
Identifier
Number
0x07E1
0x0AC6
Supported
Freeze mode, sync mode, automatic baud-rate detect
Modularity
The RMC is a modular station that can have one module
selected at a time.
Station
Addresses
0-99 (selected by rotary
switches)
1-126 (set in RMCTools or by
Set_Slave_Address function
from a PROFIBUS Class 2
Master)
PROFIBUS-DP Modes
RMC150E and RMC75P
The following modes are available on the RMC150E and RMC75P:
•
•
•
•
Each of these modes specifies a number of 32-bit registers, n. For each mode, n registers
are continuously sent from the RMC's first n Indirect Data Map registers to the PLC, and n
registers are always sent from the PLC to the first n registers in the RMC's Variable Table.
Choose the mode with the number of registers you need for your application. For details
on how to use these modes, see the PROFIBUS Mode: I/O Modes topic.
RMC75P Only
In addition to the I/O modes described above, the RMC75P supports Basic/Enhanced
PROFIBUS Modes. These modes are generally more difficult to use. Therefore, most users
will prefer the cyclic modes. For details on these additional modes, see the
Basic/Enhanced PROFIBUS Modes topic.
PROFIBUS Configuration
For details on configuring the PROFIBUS, see the PROFIBUS Configuration topic.
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Delta Computer Systems, Inc.