Remote Communications - ABB Totalflow X Series Startup Manual

Remote Communications

The following discussion deals primarily with the unit communicating with
the Host (typically WinCCU).
To communicate with the Host, the XFC or XRC has remote
communication's ports that can function as RS232, RS485 or RS422.
Depending on the customer's order, most units are shipped with the
appropriate wiring in place for the specified communication's equipment.
After installation of the unit and with the communications path complete,
the user needs to enter the appropriate communication's parameters.
The unit was most likely shipped with Comm 1 set up for Totalflow
Remote protocol. If not, select the Protocol using the Entry mode of
PCCU32 as shown below. The protocol must be selected first for the
appropriate communications parameters to be displayed. A blinking
telephone pole symbol " " in annunciator position A8 (default) indicates
Comm 1 port is active.
The data bits, stop bits and all required communications parameters can
be modified with PCCU32. Units will typically be shipped with correct
default comm port settings but may need fine tuning for optimum
operation.
Warning: As opposed to the XRC, the XFC has only one Switched V-
Batt/Operate line; if it is needed, Enable it only on one Comm Port even
though both ports may require its use. The V-Batt/Operate line will switch
on/off at the Listen Cycle timing of the port that enabled it.
Figure 7 (PCCU32 Entry Mode)
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