Important Buffer Memory Locations - Mitsubishi Electric Melsec FX Series Beginners Manual

FX2N-10PG positioning
4.4.2

Important buffer memory locations

The FX
2N
memory that contain information relevant to the control of positioning operations. Most of these
addresses are reserved for data to be used in table operations. The FX
nected to the FX
or update information. This exchange of information takes place through dedicated PLC instructions
known as the FROM/TO instructions. (For FX
fer data to/from special function blocks.)
The following buffer memory addresses are used in the ladder program example below. For details on
other BFM addresses, refer to the FX
BFM #
#1, #0
#2
#11
#12
#14, #13
#16, #15
#25, #24
#26
#27
#28
#33, #32
#35, #34
#36
#37
Tab. 4-30: Buffer memory addresses of FX
Using a multiplication factor of 10
FX Positioning Control Systems
-10PG contains 1,300 buffer memory (BFM) addresses, which are 16-bit (1 word) areas of
-10PG can send and receive data to the buffer memory addresses to change and/
2N
Item
Maximum speed
Bias speed
Acceleration time
Deceleration time
Target address 1
Operation speed 1
Current address
Operation command
Bit 0 Error reset
Bit 1 STOP
Bit 2 Forward rotation limit
Bit 3 Reverse rotation limit
Bit 8 Relative/Absolute positioning
Bit 9 START command
Operation pattern
b0 1-speed positioning operation
Status information
Pulse rate
Feed rate
Parameters
Bit 1,
System of units
Bit 0
Bit 5,
Multiplication factor
Bit 4
Error code
3
Learning to Use the FX Family for Positioning Control
PLCs, the MOV instruction can also be used to trans-
3U(C)
-10PG User's Manual (JY992D93401).
2N
-10PG
2N
changes the units from μm to mm.
or FX PLC that is con-
2N(C) 3U(C)
Set value Note
50,000 Hz
0 Hz
100 ms
100 ms
50 mm
50,000 Hz
D11, D10 mm
— —
M0 X000
M1 X001
M2 X002
M3 X003
M8 (Bit 8 =1) Relative positioning
M9 X007
— —
— —
M20 – M31
4,000 PLS/rev
1,000 μm/rev
— —
Bit 1: 1, Bit 0: 0 Combined system
3
Bit 5: 1, Bit 4: 1
10
D20 —
4 - 45