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9 MAJOR POSITIONING CONTROL
Example
Program in which the axis 1 current feed value is read to D104 and D105
Restrictions
(1) A 1.8ms error will occur in the current value update timing when the stored
"current feed value" is used in the control.
A 56.8ms error will occur in the current value update timing when the stored
"machine feed value" is used in the control.
(2) The "current feed value" and "machine feed value" may differ from the values
Da.6
set in "
Positioning address/movement amount" of the positioning data if
the movement amount per pulse is not set to "1".
Monitoring the current value
The "current feed value" and "machine feed value" are stored in the following
buffer memory addresses, and can be read using a "DFRO (P) command" from
the PLC CPU.
Md.20 Current feed value
Md.21 Machine feed value
Buffer memory addresses
Axis 1
Axis 2
800, 801
900, 900
802, 803
902, 903
9 - 17
MELSEC-Q
Axis 3
1000, 1001
1100, 1101
1002, 1003
1102, 1103
<Read current feed value to D104 and D105>
Axis 4
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Troubleshooting
