User`s manual

7 - 1
7
7-1 Explanation of direct operation
[1] Outline
In program operation, the step data programmed with the operation patterns must be transferred to
internal memory on this module. However, in direct operation, positioning is performed merely by writing
the position/speed data whenever necessary to the specified area (special I/O data area) on the PLC.
Accordingly, this position/speed data can be input externally, and the present position from this module
can be calculated and further processed to enable positioning, which allows more flexible and simpler
position control.
(Note) In direct operation, linear interpolation is not performed.
Special I/O
data area
Internal
memory
Position data,
speed data,
etc.
Write
PLC(JW50H/70H/100H)
This module
(JW-12PS/14PS)
I/O refresh
Positioning
Chapter 7 Direct Operation
[2] Startup of direct operation
There are two ways of starting up direct operation, and there are two direct operation modes.
(1) Startup method
Change of state of the direct operation startup relay from OFF to ON ( )
Change of state from OFF to ON ( ) by an external startup signal (general-purpose input)
(Parameter setting is required.)
(2) Operation mode
Position control (PTP) operation
Speed control operation