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PLC User's Manual - Positioning Control Edition
Built-in Positioning Functions
11 Batch Data Positioning Mode (TBL Instruction)
11.3 Function and Operation
B - 144
11.3 Function and Operation
Preliminarily set the positioning parameters using GX Developer, and then specify the pulse output destination
and the positioning table number (n) for the DTBL instruction in order to carry out positioning.
Use GX Developer Ver.8.23Z or later to set the positioning parameters.
The "number of pulses" and "frequency" set by the positioning parameters in each positioning table can be
changed using the program, display module, or HMI.
→ For details on positioning parameters, refer to Section 11.4.
D
Command
input
FNC152
DTBL
D n
Specifies the pulse output destination
device for the positioning table to be
activated.
Positioning table setting
Specifies the positioning
table number to be activated.
Constant setting
As shown in the following table, each positioning instruction consists of the positioning type (4 types in total),
number of pulses (pls), frequency (Hz), etc.
For further information on the operation of each instruction, refer to the description of each instruction.
C D E
A
B
*1 PLSV(FNC157) has only 3 operands. It has no operand of number of output pulses.
*1
Command
input
FNC
{{{
DDVIT(Interrupt Positioning)
DPLSV(Variable Speed Pulse Output)
DDRVI(Drive to Increment)
DDRVA(Drive to Absolute)
C
Positioning type
Refer to
Instruction and its operand to be activated
Operand
Chapter 9
Chapter 10
Section 8.2
Section 8.3
Number of
output pulses
Output pulse
frequency
Pulse output
destination
device
Rotation
direction
signal
D E A B
S
1
S
1
S
1
S
2
S
2
S
2
D
1
D
1
D
1
D
1
D
2
D
2
D
2
D
2
S
Instruction
word
DDVIT
DPLSV
DDRVI
DDRVA