Yaskawa Remote Serial Communication Controller LAN Node PCB for use with Microtrac DSD LAN User Manual

Page 19

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19

RD 790-30

EX2.4. Drive #1 continues to keep the display updated by sending Display Value Response
messages when the data changes and at 4 second intervals. The data sent over the serial port
from the RSC to the external device is as follows (in the given order):

001H 0FEH 008H 001H 024H

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Start of message sequence (SOH, NOT SOH)——— 001H 0FEH |

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Length, 8 bytes ——————————————————————— 008H

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Drive #1——————————————————————————————001H

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Message Type 024H, Display Value Response———————————————024H

00AH

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RDU #10———————————————————————————————— 00AH

000H 000H 000H 000H

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Value, floating pt value of 0 ———————————————— 000000000H

037H

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Checksum————————————————————————————————037H

EX2.5. External device desires to change the value of the numeric parameter on the drive, so it
sends an RDU Value Change message to the drive. The data sent over the serial port from the
external device to the RSC is as follows (in the given order):

001H 0FEH 00BH 001H 026H

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Start of message sequence (SOH, NOT SOH) ——— 001H 0FEH |

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Length, 11 bytes———————————————————————00BH

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Drive #1—————————————————————————————— 001H

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Message Type 026H, RDU Value Change————————————————— 026H

065H 000H 06EH 00AH

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Channel #101—————————————————————065H |

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Subchannel #110———————————————————————0006EH

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RDU #10———————————————————————————————— 00AH

042H 0C8H 000H 000H

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Value, floating pt value of 100 ——————————————— 042C80000H

019H

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Checksum ——————————————————————————————— 019H

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