Disconnection Detection Operation Flag (Buffer Memory Address 139: Un\G139); Disconnection Detection Mode Monitor (Buffer Memory Address 140: Un\G140) - Mitsubishi Electric MELSEC Q Series User Manual

3 SPECIFICATIONS

3.4.17 Disconnection detection operation flag (buffer memory address 139: Un\G139)

3.4.18 Disconnection detection mode monitor (buffer memory address 140: Un\G140)

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(1) When the disconnection detection function is operated, "1" is stored to the bit of
the corresponding channel in this area.
In the following cases, "0" is stored to the bit of the corresponding channel.
• Disconnection detection function is "disabled".
• An analog output value is within the dead band when "auto setting" is set to the
disconnection detection mode.
• D/A conversion enable/disable setting (buffer memory address 0: Un\G0) is set
to "D/A conversion disable".
(1) This area shows the disconnection detection mode under operation by channels.
b15
U n\G 140
b8 to b15 information is fixed at 0.
Disconnection detection mode
Fixed
Arbitrarily setting
Auto setting
b12 b11
to to
0 0
H H
MELSEC-Q
b8 b7 to b4 b3
CH2
Set value
0
H
1
H
2
H
to b0
CH1
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