Chapter 16 PLC Function ApplicationsMS300 (High Speed Model)
16-6
When the external multifunctional input terminals (MI1 to MI7) are in PLC Mode select bit 0
(51) or PLC Mode select bit 1 (52), and the terminal contact is closed or open, it will
compulsorily switch to the PLC mode, and keypad switching will be ineffective.
Corresponding actions are as follows:
PLC mode
PLC Mode select bit 1 (52) PLC Mode select bit 0 (51)
Using KPC-CC01 MS300
Disable PLC 0 OFF OFF
PLC Run PLC 1 OFF ON
PLC Stop PLC 2 ON OFF
Maintain previous
state
Maintain previous
state
ON ON
Use of MS300 digital keypad to implement PLC functions
When the PLC screen switches to the PLC1 screen, this will trigger one PLC action,
and the PLC program start/stop can be controlled by communications via the WPL.
When the PLC screen switches to the PLC2 screen, this will trigger one PLC stop, and
the PLC program start/stop can be controlled by communications via the WPL.
The external terminal control method is the same as shown in the table above.
NOTE
When input/output terminals (MI1 to MI7) are included in the PLC program, these input/output
terminals will only be used by the PLC. As an example, when the PLC program controls Y0 during
PLC operation (PLC1 or PLC2), the corresponding output terminal relay (RA / RB / RC) will operate
in accordance with the program. At this time, the multifunctional input/output terminal setting will be
ineffective. Because these terminal functions are already being used by the PLC, the DI / DO / AO in
use by the PLC can be determined by looking at Pr. 02-52, 02-53, and 03-30.
When the PLC's procedures use special register D1040, the corresponding AO contact AFM1 will be
occupied,
Pr. 03-30 monitors the state of action of the PLC function analog output terminal; bit 0 corresponds to
the AFM1 action state.
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