Mitsubishi Electronics Q68RD3-G ユーザーズマニュアル

3

3.3.2

I/O signal details

This section describes details of the Q68RD3-G I/O signals.

(a) If the module is in the normal mode when the programmable controller is powered 

ON or the reset operation of the CPU module is performed, this signal turns ON to 
start conversion processing as soon as the module is ready.

(b) When this signal is OFF in the normal mode, conversion processing is not 

performed. If the module is in the offset/gain setting mode, conversion processing 
is performed even if this signal is OFF.

(c) In any of the following cases, this signal turns OFF.

 • The module is in the offset/gain setting mode.

 • A watchdog timer error occurs in the Q68RD3-G. 

*1

 * 1 A watchdog timer error occurs when program operation does not complete within the intended time 

due to errors such as a hardware failure of the Q68RD3-G. The "RUN" LED of the Q68RD3-G turns 
off when a watchdog timer error occurs.

(a) When the following settings are changed, this signal is used as an interlock 

condition to turn ON/OFF Operation condition setting request (Y9).

 • Conversion enable/disable setting (Un\G0)
 • CH  Time/Count/Moving average/Time constant setting (Un\G1 to Un\G8)
 • Averaging processing selection (Un\G24, Un\G25)
 • Warning output enable/disable setting (Un\G46)
 • Scaling valid/invalid setting (Un\G58)
 • CH  Scaling range upper/lower limit values (Un\G62 to Un\G77)
 • CH  Scaling width upper/lower limit values (Un\G78 to Un\G93)
 • CH  Process alarm upper/lower limit values (Un\G94 to Un\G125)
 • CH  Rate alarm warning detection period (Un\126 to Un\G133)
 • CH  Rate alarm upper/lower limit values (Un\G134 to Un\G149)
 • Conversion setting for disconnection detection (Un\G164, Un\G165)
 • CH  Conversion setting value for disconnection detection (Un\G166 to 

Un\G173)

(b) When this signal is OFF, conversion processing is not performed.