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Description of Functions
MDI block
The MDI block currently being processed is canceled when the user program
on-the-fly
outputs an "MDI block on-the-fly" (job no. 16).
Transfer of "MDI block on-the-fly" interrupts the active "MDI block". The
new block is executed immediately without "Start".
The MDI block on-the-fly is not saved in the FM 453.
Block Structure
The following table shows the block structure of the MDI block.
X/t
G1...G2
M1...M3
F
Note:
When the assignment bit (byte 2 and byte 3) is not set, the associated values
must be deleted.
9-26
Position/dwell time programmed (fills in value 1)
G function group 1...2
M function group 1...3
Speed programmed (fills in value 2)
Byte
Data Format
0
Byte
1
Byte
2
8 bits
3
8 bits
4
Byte
5
Byte
6
Byte
7
Byte
8
DINT
12
DINT
16
Byte
17
Byte
18
Byte
19
Byte
FM 453 Servo Drive / Step Drive Positioning Module
Bit
7
6
5
4
3
2
0
0
0
0
0
X/t
0
0
0
0
0
0
M3 M2 M1
G function 1
G function 2
0
0
32-bit value 1
32-bit value 2
M function 1
M function 2
M function 3
0
C79000-G7076-C453-01
1
0
G2 G1
F
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