B865-001 Register Input, Switch Settings

Switch Settings

Two toggle switches are located at the top of the module and are used to determine the type of communication with external devices. Both switches are user selectable.

1. Data Polarity Switch

This toggle switch allows selection of true-hi or true-lo input data.

2. Bin/BCD Switch

This toggle switch determines whether the input data is to be interpreted by the controller as a BCD or a binary value.

NOTE: The switch and I/O map relationship is summarized in the following table.

Table

The following table identifies the relationship between the switch and I/O map facility.

I/O Map Selection	B865 Switch Setting	Result
Binary	BCD	BCD
Binary	Binary	Binary
BCD	BCD	Erroneous
BCD	Binary	BCD