Mitsubishi Electric MELSEC iQ-R16MTCPU Programming Manual page 91

• The limit switch outputs are controlled based on each watch data during the READY complete status (SM500: ON) by the
"[Rq.1120] PLC ready flag (R: M30000/Q: M2000)" from OFF to ON. With the setting of "Rq.1120: PLC ready flag keep the
output device when turns OFF" invalid, when the "PCPU READY complete flag (SM500)" turns OFF by turning the
"[Rq.1120] PLC ready flag (R: M30000/Q: M2000)" from ON to OFF, all points turn OFF. With the setting of "Rq.1120: PLC
ready flag keep the output device when turns OFF" valid for output devices other than Y devices, the output devices do not
turn OFF even when the "[Rq.1120] PLC ready flag (R: M30000/Q: M2000)" turns from ON to OFF. The setting is valid for
all the output devices. Y devices always turn OFF when the "[Rq.1120] PLC ready flag (R: M30000/Q: M2000)" turns from
ON to OFF. When lower limit value and upper limit value are specified with word devices, the word device contents are
input
to the internal area when the "[Rq.1120] PLC ready flag (R: M30000/Q: M2000)" turns from OFF to ON. After that, the word
device contents are input per motion operation cycle, and limit switch outputs are controlled.
• Multiple outputs (Up to 64 points) can be also set to one watch data. In each setting, the output device may be the same. If
both of the two regions of the ON section setting are used or if the same output device is designated by multiple output
settings (regardless of whether or not the watch data is the same), the logical add of the output results in the regions is
output.
Output device OFF
Upper limit value
ON section setting No.2
Lower limit value
Upper limit value
ON section setting No.1
Lower limit value
Watch data value
Setting the forced OFF bit
Forced OFF bit can be set to forcibly turn off the output of the output device point-by-point. When the forced OFF bit is ON, the
output is OFF.
Setting the forced ON bit
Forced ON bit can be set to forcibly turn on the output of the output device point-by-point. When the forced ON bit is ON, the
output is ON. Priority is given to control of this setting over ON of the "forced OFF bit" (forced output OFF).
ON ON
OFF OFF
4 AUXILIARY AND APPLIED FUNCTIONS
4.1 Limit Switch Output Function
4
89