Rockwell Automation 57C442 Data Highway Plus Interface Module - Manual (Page 37)

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Example 5: Command 2, Unprotected Write
In the example below, the Data Highway Plus Interface module is
writing 100 words from the local N7 file to the file address 1234 octal in
the PLC at station address 7. The variable N7BASE% is defined in the
rack configuration.
10 COMMON N7BASE% \! Represents the physical address of &
the starting register on the
&
Data Highway Plus module to be &
written to
20 LOCAL DST% \! The address of the destination node &
on the local Data Highway Plus network
21 LOCAL STS% \! The location where the status &
resulting from the operation is stored
22 LOCAL SZE% \! The number of registers to be &
transferred
23 LOCAL CMD% \! The Data Highway Plus command &
sent by the module
30 DST% = 7
31 STS% = 0
32 SZE% = 100
33 CMD% = 2
40 IF NOT GATEWAY_CMD_OK@(STS%, CMD%, DST%, “1234”,&
VARPTR! (N7BASE%), SZE%) THEN 20000 \! process errors &
at line 20000