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Chapter 14 Common Functions
[2] List of buffer memory
The buffer memory used in the optional data monitor function is shown below.
(1) Expansion parameter
Setting item Setting details/setting value
Buffer memory address
QD77MS2
QD77MS4
QD77MS16
[Pr.91]
Optional data
monitor: Data type
setting 1
• Set the data type monitored in optional data monitor function
every data type setting. (Refer to this section [1])
• When "0: No setting" is set, the stored value of "[Md.109]
Regenerative load ratio/Optional data monitor output 1" to
"[Md.112] Optional data monitor output 4" is different every
data type setting 1 to 4. (Refer to (2))
100+150n
[Pr.92]
Optional data
monitor: Data type
setting 2
101+150n
[Pr.93]
Optional data
monitor: Data type
setting 3
102+150n
[Pr.94]
Optional data
monitor: Data type
setting 4
103+150n
n: Axis No.-1
POINT
(1) The monitor address of optional data monitor is registered to servo amplifier with
initialized communication after power supply ON or PLC CPU reset.
(2) Set the data type of "used point: 2 words" in "[Pr.91] Optional data monitor: Data
type setting 1" or "[Pr.93] Optional data monitor: Data type setting 3". If it is set
in "[Pr.92] Optional data monitor: Data type setting 2" or "[Pr.94] Optional data
monitor: Data type setting 4", the warning "Optional data monitor data type
setting error" (warning code: 116) will occur with initialized communication to
servo amplifier, and "0" is set in [Md.109] to [Md.112].
(3) Set "0" in "[Pr.92] Optional data monitor: Data type setting 2" when the data type
of "used point: 2 words" is set in "[Pr.91] Optional data monitor: Data type
setting 1", and set "0" in "[Pr.94] Optional data monitor: Data type setting 4"
when the data type of "used point: 2 words" is set in "[Pr.93] Optional data
monitor: Data type setting 3". When other than "0" is set, the warning "Optional
data monitor data type setting error" (warning code: 116) will occur with
initialized communication to servo amplifier, and "0" is set in [Md.109] to
[Md.112].
(4) When the data type of "used point: 2 words" is set, the monitor data of low-order
is "[Md.109] Regenerative load ratio/Optional data monitor output 1" or
"[Md.111] Peak torque ratio/Optional data monitor output 3".
(5) Refer to this Section "[1] Data that can be set" for the data type that can be
monitored on each servo amplifier. When the data type that cannot be
monitored is set, "0" is stored to the monitor output.