Profibus-Dp Network Configuration; Basic Configuration Of The Profibus-Dp Network - Mitsubishi Electric Melsec Q Series User Manual

2
SYSTEM CONFIGURATION

2.2 PROFIBUS-DP Network Configuration

2.2.1 Basic configuration of the PROFIBUS-DP network

This section explains the basic PROFIBUS-DP configuration for using the QJ71PB92V as
a DP-Master (Class 1).
(1) System equipment
The following table shows the equipment required for the PROFIBUS-DP system.
(2) Network configuration
In the PROFIBUS-DP system configuration, the following conditions must be
satisfied:
(a) Number of connectable modules in an entire network (When repeaters are used)
(b) Number of connectable modules per segment
(c) Max. no. of repeaters
(d) Number of connectable DP-Slaves per QJ71PB92V
(e) Multi-master system
System Equipment
DP-Master (Class 1) QJ71PB92V
Configuration tool GX Configurator-DP Version 7.00A or later
DP-Slave Such as the QJ71PB93D
Repeater Required when 32 or more DP-Slaves are connected
PROFIBUS cable
Bus terminator
*1
DP-Master + DP-Slaves
* 1 Including the QJ71PB92V
*1
DP-Master + DP-Slaves + repeaters
* 1 Including the QJ71PB92V
* 2 A repeater is counted for both segments.
Up to 3 repeaters can be used for communication between the QJ71PB92V and
any DP-Slave.
Up to 125 DP-Slaves can be connected to a single QJ71PB92V.
When a communication chip of ASPC2 STEP C mode or equivalent is used, the
DP-Master cannot be connected to the PROFIBUS-DP in which the QJ71PB92V
is included.
To use a DP-Master with such a communication chip, configure another network.
For the communication chip currently used, consult its manufacturer.
2.2 PROFIBUS-DP Network Configuration
2.2.1 Basic configuration of the PROFIBUS-DP network
Table2.3 System Equipment
Description
Section 5.5.1
126
*2
32
1
2
3
4
5
6
7
8
2
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