Mitsubishi Electric MELSEC Q Series Programming Manual page 613

APPENDICES
No.
SD552
SD804
(Note-1)
Servo parameter
write/read request
SD805
SD806
SD807
c) "Servo parameter write/read" device
Store the value in the following special registers to change or display
the servo parameter.
Name Meaning
Servo parameter
read value
Servo parameter
write/read request
flag
Axis No.
Servo parameter
No.
Servo parameter
setting value
(g) Optional data monitor setting
The following table shows data types that can be set.
Set the data so that the total number of communication points per axis is no
more than 6 points.
Data type
Position F/B
Encoder position within 1 revolution
Encoder Multi-revolution counter
Cumulative current value
External encoder counter value
(Note-1): The position command is the command unit set in the fixed parameter.
(h) Gain changing command, PI-PID switching command, control loop changing
command
Gain changing command, PI-PID switching command, and control loop
changing command becomes invalid.
• The read value of servo parameter which executed
"2: Read request" in "servo parameter write/read
request (SD804)" is stored.
• The "write/read request" is executed after setting of
the axis No. and servo parameter No.
1: Write request
2: Read request
• "0" is automatically set by Motion CPU after
completion of servo parameter write/read request.
("-1" is stored by Motion CPU at write/read error.)
• The axis No. to write/read servo parameter is stored.
Q173DSCPU: 1 to 32
Q172DSCPU: 1 to 16
• The servo parameter No. to be written/read is stored
in hexadecimal.
H
Parameter ID
(Note): Refer to the AlphaStep/5-phase
• The setting value of servo parameter to be written is
stored when "1: Write request" is set in "servo
parameter write/read request (SD804)".
Unit
[pulse]
[pulse]
[rev]
[Position
command]
[pulse]
APP - 122
Details
(Note)
instruction manual for details.
(Note-1): Do not execute the automatic refresh.
Number of words
2
2
1
2
(Note-1)
2
Set by
System
(At read
request)
User/
System
User
Number of
communication
data points
0
0
0
0
2