Mitsubishi Electric MELSEC iQ-R RD75P4, User Manual

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APPENDICES
Appendix 3 How to Find Buffer Memory Addresses
When setting block start data using a program, determine buffer memory addresses using the following calculation formula
and set the addresses.
■ Calculation formula for [Da.11] Shape and [Da.12] Start data No.
Use the following calculation formula.
• 26000 + (1000

(Ax - 1)) + (200

M) + (P - 1)
For each variable, substitute a number following the description below.
Ex.
When the buffer memory address that satisfies the following conditions is determined
• Axis 3
• Start block No.2
• Block start data point: 40
26000 + (1000

(3 - 1)) + (200

2) + (40 - 1) = 28439
■
Calculation formula for [Da.13] Special start instruction and [Da.14] Parameter
Use the following calculation formula.
• 26050 + (1000

(Ax - 1)) + (200

M) + (P - 1)
For each variable, substitute a number following the description below.
Ex.
When the buffer memory address that satisfies the following conditions is determined
• Axis 2
• Start block No.1
• Block start data point: 25
26050 + (1000

(2 - 1)) + (200

1) + (25 - 1) = 27274
Item Description
Ax The axis number of the buffer memory address to be determined. Substitute a number from 1 to 4.
M The start block No. of the buffer memory address to be determined. Substitute a number from 0 to 4.
P The block start data point of the buffer memory address to be determined. Substitute a number from 1 to 50.
Item Description
Ax The axis number of the buffer memory address to be determined. Substitute a number from 1 to 4.
M The start block No. of the buffer memory address to be determined. Substitute a number from 0 to 4.
P The block start data point of the buffer memory address to be determined. Substitute a number from 1 to 50.