2 MOTION DEDICATED PLC INSTRUCTION
2.1 Outline of Motion Dedicated PLC Instruction
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2 MOTION DEDICATED PLC INSTRUCTION
2.1 Outline of Motion Dedicated PLC Instruction
Motion dedicated PLC instruction is used to access the device data and start-up program of Motion CPU from PLC CPU and
other CPU. Motion dedicated PLC instruction is transmitted through the CPU dedicated instruction transmission area set up in
system area on the CPU buffer memory or the CPU buffer memory (fixed scan communication area). Outline operation for
Motion dedicated PLC instruction is shown below.
The memory area used and the accepting cycle on the Motion CPU side according to the instruction are shown below.
Instruction Memory used Accepting cycle on Motion CPU side
M(P). instructions CPU buffer memory Non-fixed cycle (immediate)
D(P). instructions CPU buffer memory (fixed scan communication area) Fixed cycle (CPU communication cycle)
<PLC CPU> <Motion CPU>
Motion dedicated instruction 1
Motion dedicated instruction 1
Motion dedicated instruction 2
Motion dedicated instruction 2
(3) Instruction process
CPU dedicated instruction
transmission area
(5) Complete device
Complete status
set (END processing)
(1) Instruction execution (2) Instruction accept
(4) Response data set
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