Mitsubishi Electric FX5-DP-M, User Manual

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24
4 FUNCTIONS
4.2 PROFIBUS-DPV0
Data exchange starts and stops
1.
Write the initial values of output data to 'Output data area' (Un\G14336 to Un\G15359).
(

Page 139 Output data area)
2.
Turn on 'Data exchange start request signal' (Un\G2.b0).
3.
Turn on 'Data exchange start request signal' (Un\G2.b0) and data exchange starts, 'Data exchange start completed
signal' (Un\G0.b0) turns on.
4.
The input data from the DP-Slaves are stored in 'Input data area' (Un\G6144 to Un\G7167).
5.
Turn off 'Data exchange start request signal' (Un\G2.b0), 'Data exchange start completed signal' (Un\G0.b0) turns off,
and the data exchange stops.
• Output data communication
• Input data communication
For a program example of the data exchange function, refer to the following.

Page 102 Program Example of Data Exchange Function
(1) Data exchange starts
(2) Data exchange stops
(3) Output data at Bc1 (initial value)
(4) Output data at Bc2
(5) Output data at Bc3
(6) Output data at Bc4
(1) Data exchange starts
(2) Data exchange stops
(3) Data from the last data exchange
(4) Input data at Bc1
(5) Input data at Bc2
(6) Input data at Bc3
Bc1 Bc2 Bc3
(1)
(3) (4) (5) (6)
(2)
'Data exchange start request
signal' (Un\G2.b0)
'Data exchange start completed
signal' (Un\G0.b0)
Bus cycle time (Bc)
'Output data area'
(Un\G14336 to Un\G15359)
Bc1 Bc2 Bc3
(1)
(3) (4) (5) (6)
(2)
'Data exchange start request
signal' (Un\G2.b0)
'Data exchange start completed
signal' (Un\G0.b0)
Bus cycle time (Bc)
'Input data area'
(Un\G6144 to Un\G7167)