User`s manual

3 - 26 3 - 26
MELSEC-Q
3 SPECIFICATIONS
3.4.12 Disconnection detection/warning output setting (buffer memory address 47: Un\G47)
(1) Set whether to enable or disable the disconnection detection and warning output
on each channel. (Refer to Section 3.2.4 and Section 3.2.6.)
(2) The operating condition setting request (Y9) must be turned ON/OFF to validate
the disconnection detection/warning output setting. (Refer to Section 3.3.2.)
(3) The default setting is all-channel disconnection detection/warning output disable.
b15 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 b0
1: Warning output
disable
0: Warning output
enable
b2 to b11, b14 and b15
information is fixed at 0.
0 CH2 CH10 0000000000Un\G47
1: Disconnection
detection disable
0: Disconnection
detection enable
CH2 CH1
3.4.13 Warning output flag (buffer memory address 48: Un\G48)
(1) When the digital input value falls outside the CH warning output upper limit
value/lower limit value (buffer memory addresses 86 to 89: Un\G86 to Un\G89)
range, the bit corresponding to the channel turns to "1". (Refer to Section 3.2.4.)
(2) Whether the warning is the upper or lower limit value warning can be checked on
each channel.
(3) If the warning is detected on any of the channels enabled for conversion, the
warning output signal (XE) also turns ON.
(4) Turning ON the operating condition setting request (Y9) or warning output clear
request (YE) clears the warning output flag.
b15 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 b0
1: Warning output
0: Normal
b4 to b15 information is fixed at 0.
000000000000Un\G48
lower
limit
value
upper
limit
value
CH1 CH1
lower
limit
value
upper
limit
value
CH2 CH2