User`s manual

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MELSEC-Q
3 SPECIFICATIONS
3.4.14 Disconnection detection flag (buffer memory address 49: Un\G49)
(1) If disconnection occurs in the output range of 4 to 20mA or user range setting 1,
the bit corresponding to the channel turns to "1". (Refer to Section 3.2.6.)
(2) If disconnection is detected on any one channel, the disconnection detection
signal (XD) also turns ON.
(3) Turning ON the operating condition setting request (Y9) or disconnection detection
clear request (YD) clears the disconnection detection flag.
b15 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 b0
1: Disconnection
0: Normal
b2 to b15 information is fixed at 0.
0 CH2 CH10000000000000Un\G49
3.4.15 CH increase/decrease digital limit values (buffer memory addresses 70 to 73:
Un\G70 to Un\G73)
(1) For rate control, set the range where the digital value can be incremented and
decremented in a single conversion cycle (10ms). (Refer to Section 3.2.5.)
(2) The setting range is 0 to 32000.
If any value outside the setting range is set, an error occurs and the corresponding
error code (buffer memory address 19: Un\G19) is stored.
(3) The operating condition setting request (Y9) must be turned ON/OFF to validate
the increase digital limit values and decrease digital limit values. (Refer to Section
3.3.2.)
3.4.16 CH warning output upper limit value/lower limit value (buffer memory addresses 86
to 89: Un\G86 to Un\G89)
(1) Set the upper and lower limit values of the digital input value for providing the
warning output. (Refer to Section 3.2.4.)
(2) The setting range is -16384 to 16383.
Make setting so that the upper limit value is greater than the lower limit value.
If any value outside the setting range is set, an error occurs and the corresponding
error code (buffer memory address 19: Un\G19) is stored.
(3) The operating condition setting request (Y9) must be turned ON/OFF to validate
the warning output upper and lower limit values. (Refer to Section 3.3.2.)