Delta RMC151 - Manual (Page 453)

6 Communication
in its response packet. It can be used to match
responses with requests, since UDP does not prevent
packets from being delivered out-of-order or dropped.
10-11 01 02 FINS Command. These two bytes should be 01 02
to indicate a memory area write.
12-15 xx yy zz 00 FINS Address. This value encodes the register
address to write to in the RMC. See the FINS
Address section below for details.
16-17 mm nn Write Length. This values holds the number of 16-
bit values to write. Notice that because the RMC uses
32-bit registers, this value should be twice the
number of RMC registers being written to. This value
is encoded in binary with the most-significant byte
first. This value must be less than or equal to 512.
18-... ... Data. The values of each register to write should
follow the above header. Each 32-bit value should be
encoded as two 16-bit words, with the least-
significant word first, but with each individual 16-bit
word encoded with the most-significant byte first. For
example, the value 0x11223344 should be encoded
as 33 44 11 22.
The RMC will respond to this request with the following packet:
Offset Data
(hex)
Description
0-8 C0 00 02
00
00 00 00
00
00
Static Values. These 9 bytes will always have these
values in the response.
9 kk Service ID. This value will echo the Service ID in the
request. It should be used to match this response to
the corresponding request.
10-11 01 02 FINS Command. These two bytes will match the
command from the request.
12-13 rr ss Response Code. Indicates whether the write was
successful or not. See the FINS Response Codes
section below.
Reading Data from the RMC:
To read one or more registers from the RMC, send the following request packet to the
RMC:
Offset Data
(hex)
Description
0-8 80 00 02
00
00 00 00
00
00
Static Values. These 9 bytes should always have
these values in a read request.
9 kk Service ID. This value is simply echoed by the RMC
in its response packet. It can be used to match
responses with requests, since UDP does not prevent
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