Specific Message Formats - Allen-Bradley 1779-KFMR User Manual

Chapter 10
D SIZE (Destination Size) — This field specifies the number of bytes
in the block of memory affected at the ultimate destination station which
executes the remote command. The size value must be even
(02 through FF hexadecimal).
D ADDR (Destination Address) — This field specifies the logical
starting address of the block of memory affected at the ultimate
destination station which executes the remote command. The size of this
field is variable (2 through 35 bytes). The first byte specifies the levels of
addressing that are specified in the remaining bytes of the field. Refer to
Appendix A for an explanation of logical addressing.

Specific Message Formats

In the previous section we described the RC control message fields
defined at the application layer. Here we describe the format of each
specific type of RC control command message and reply message at the
application layer.
Because some replies have no message fields for the application layer, we
also show the RC control header fields for a point of reference.
Store Remote Command
Use this command to store a remote command in a remote programmable
controller station. Identify each with a unique RCID value.
Command Format:
The reply has no message fields for the application layer. However, the
STS field in the header indicates a successful transaction (00) or an error
code.