Rockwell Automation 2706-PRIO_PDH485_PDHP_PDNET_PCNET_PENET_PENET1 InView Communication Module User Manual - Manual (Page 102)

Publication 2706-UM017C-EN-P - March 2006
4-52 Application Guide
If the computer in which the software is loaded on does not
have RSLinx software, then the only Transfer Type available is
the Internal COM ports. The communication rate for DF1
download must be 19200 bps.
The DH485 communication module requires you to download
the application over the DH485 network. You cannot download
over the RS232 port on a DH485 communication module.