Yaskawa MP920 Communications Module User Manual

Page 247

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Appendix A System Functions

A.2.3 Parameter Details

A-18

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Data Address (PARAM05)

PARAM05 outputs the data address requested by the sender.

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Data Size (PARAM06)

PARAM06 outputs the data size (number of bits or words) specified in the read or write
request. For no-protocol 2, the number of bytes is output.

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Remote CPU Number (PARAM07)

PARAM07 outputs the remote CPU number.

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Coil Offset (PARAM08)

Set the offset word address of the coils.

This parameter is valid when the function code is 01H, 05H, or 0FH.

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Input Relay Offset (PARAM09)

Set the offset word address of the input relays.

This parameter is valid when the function code is 02H.

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Input Register Offset (PARAM10)

Set the offset word address of the input registers.

This parameter is valid when the function code is 04H or 0AH.

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Holding Register Offset (PARAM11)

Set the offset word address of the holding registers.

This parameter is valid when the function code is 03H, 06H, 09H, 0BH, 0DH, 0EH, or 10H.

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Write Range LO (PARAM12), Write Range HI (PARAM13)

Set the write-enable range for write requests. Any request outside this range will result in an
error.

This parameter is valid when the function code is 0BH, 0EH, 0FH, or 10H.

0

≤ write range LO ≤ write range HI ≤ maximum value of MW address

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For System Use (PARAM14)

This parameter retains the channel number currently being used. Make sure that this param-
eter is set to 0000H by the user program on the first scan after the power is turned ON. The
parameter value must not be changed by the user program at any other time because the
parameter is used by the system.

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