Rockwell Automation 6001-F2E AB STANDARD DRIVER SFTW - Manual (Page 7)

Product Overview
Chapter 1
1-3
Important information about the 6001-F2E Standard Driver software for
the 1784-KR Interface Module is listed below:
the 6001-F2E driver does not support unsolicited messages
the 6001-F2E does not support multiple outstanding commands (you
must receive the reply from your command before sending another
command)
the 6001-F2E supports the large memory model version of Microsoft C
and Borland Turbo C only
the 6001-F2E driver does not respond to a diagnostic status command
sent to itself, but responds to diagnostic status commands sent from
another computer
the 6001-F2E driver does not return a local error code if the KR detects
a node address on the network the same as its own. The station that had
the address first stays on-line; the other station goes off-line, so check
for duplicate addresses in this situation,
if you incorrectly format messages to be sent by the Standard Driver
software, a timeout condition occurs in the application. Since there is
no error code indicating an incorrect message format, check the
message format first when the application software times out with a
timeout error code
the 6001-F2E does not support off-link messages (messages sent across
a bridge to another network)
the 6001-F2E supports applications that communicate with a single
1784-KR only
Software Considerations