Profibus-Dpv0; Data Exchange Function - Mitsubishi Electric FX5-DP-M User Manual

4.2

PROFIBUS-DPV0

The following PROFIBUS-DPV0 functions are available on the FX5-DP-M.
Function

Data exchange function

Acquisition of diagnostic information and extended diagnostic information
Global control function
Data exchange function
This function enables this module to work as DP-Master (Class 1) of PROFIBUS-DP and exchange data with DP-Slaves.
A maximum of 64 DP-Slaves can be connected to one FX5-DP-M and they can exchange data of a maximum of 2048 bytes.
CPU module FX5-DP-M
X
Y
(1)
(5)
(2)
No.1
(1) Buffer memory
(2) DP-Slave
(3) Input data
(4) Output data
(5) Bus terminator
Reading/Writing I/O data from/to the CPU module
■Buffer Memory
I/O data are read/written between the devices of the CPU module and the buffer memory of the FX5-DP-M.
• Input data: 'Input data area' (Un\G6144 to Un\G7167)
• Output data: 'Output data area' (Un\G14336 to Un\G15359)
■Read/write method
I/O data are read/written between the devices of the CPU module and the buffer memory of the FX5-DP-M by using one of the
following methods.
Item
Refresh Setting
MOV instruction or FROM/TO instructions
(3)
(4)
(4)
(2)
No.2
Method
PROFIBUS Configuration Tool
Program
Reference
Page 23
Page 25
Page 27
(3)
(5)
(2)
No.64
Data consistency
Available
Unavailable
4 FUNCTIONS
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4.2 PROFIBUS-DPV0
4