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PLC User's Manual - Positioning Control Edition
Built-in Positioning Functions
8 1-Speed Positioning - DRVI/DRVA Instruction
8.2 Drive to Increment - DRVI Instruction
B - 113
A
Common Items
B
Built-in
Positioning
Functions
Apx.
Example
Connection
8.2 Drive to Increment - DRVI Instruction
8.2.1 Instruction Format
1. Instruction Format
2. Data setting
*1. Setting range : -32,768 to +32,767 (excluding 0) for 16-bit operation
: -999,999 to +999,999 (excluding 0) for 32-bit operation
*2. Setting range : 10 to 32,767 Hz for 16-bit operation
For 32-bit operation, however, the setting range is as shown in the following table.
3. Devices
1 : Specify Y000, Y001, or Y002
*1
transistor output from the main unit, or specify Y000, Y001, Y002
*3
, or
Y003
*3
from a high-speed output special adapter
*2
.
*1. Y002 is not available in 14-point and 24-point type FX
3G PLC.
*2. High-speed input/output special adapters can be connected only to the FX
3U PLC.
*3. To use Y002 and Y003 with a high-speed output special adapter, connect a second high-speed output
special adapter.
Note:
• To use an FX
3U Series main unit of relay output type, be sure to connect a high-speed output special
adapter. Differential line drive type outputs will be used for the outputs of the high-speed output special
adapter.
Operand type Description Data type
Specifies the number of output pulses (relative address).
*1
BIN16/32-bit
Specifies the output pulse frequency.
*2
Specifies the pulse output number.
Bit
Specifies the rotation direction signal output destination device number.
Pulse output destination Setting range
FX
3U PLC High-speed output special adapter 10 to 200,000(Hz)
FX
3G/FX3U/FX3UC PLC Main unit (transistor output) 10 to 100,000(Hz)
Operand
type
Bit device Word device Others
System user Digit designation
System
user
Special
unit
Index
Con-
stant
Real
num-
ber
Char
acter
string
Pointer
XYMTCSD.b KnX KnY KnM KnS T C D R U\G V Z Modify K H E ""P
3 3 3 3 3333
4 33 3 3 3
3 3 3 3 3333
4 33 3 3 3
1
3
2
333 3
FNC 158
DRVI
DRIVE TO
INCREMENT
D
16-bit
instruction
9 steps
DRVI
-
Continuous
execution
type
Instruction
symbol
Execution condition
32-bit
instruction
Instruction
symbol
Execution condition
DDRVI
-
Continuous
execution
type
17 steps
Command
input
FNC 158
DRVI
S
1
•
S
2
•
D
1
•
D
2
•
S
1
S
2
D
1
D
2
S
1
S
2
D
1
D
2