Revision 6
HC900 Process & Safety Controller User and Installation Manual
135
21 April 2017
Rs-232 Remote Connection to PC Configuration Tool (Legacy Controllers)
The Controller can also be connected remotely by a set of modems, which are available from third-party
suppliers. A Null Modem Cable is used between the Controller and the modem, shown in Figure 76 and
shown in Table 19.
A second Null Modem cable is used between the PC and the internal or external modem at the other end, as
shown in Figure 76. This cable is?
Remote controller access via dial-up modem is available via the communication setup in the PC
configuration tool. All functions of the Designer Software configuration tool can be performed over this
link. Remote access functions include on-line monitoring, configuration upload and download, and
firmware upgrade.
Figure 76
– RS-232 Remote Access via Modems
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