GE GFK-0804B 用户手册

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页码 160
C
C-14
Micro PLC Programmer’s Guide – April 1994
GFK-0804B
Message  (06):  Preset Single Register
Format:
Address
Func
Error Check
06
Query
Normal Response
Number
Register
Hi        Lo         Hi         Lo
Data
Address
Func
Error Check
06
Number
Register
Hi        Lo         Hi         Lo
Data
Query:
H An address 0 indicates a broadcast request.  All  slave stations process a broadcast
request and no response is sent.
H The function code is equal to 06.
H The register number field is two bytes in length.  It may be any value less than the
highest register available in the Micro PLC.  It is equal to one less than the number of
the register to be preset.
H The data field is two bytes in length and contains  the value that the register
specified by the register number field is to be preset to.  The first byte in the data
field contains the high order byte of the preset value.  The second byte in the data
field contains the low order byte.
Response:
H The normal response to a preset single register query is identical  to the query.