Introduction to the Terminal Port
(Original Document)
At a Glance
The terminal port uses master Uni-Telway, slave Uni-Telway, and character string communication methods.
Premium PLCs
The terminal port on Premium processors is a non-insulated RS 485 link made up of two 8-pin mini-DIN connectors. These two connectors function identically and are found on the processor. They are marked with TER and AUX and are used to physically connect two pieces of equipment together at the same time, such as a programming/adjustment terminal and a man-machine interface console.
The TER connector also allows power to be supplied to a device which does not have its own power supply (RS 485/RS 232 connecting cable converter, insulating device TSX P ACC 01, etc).
The terminal port functions by default in master Uni-Telway mode. Via configuration it is possible to switch to Uni-Telway slave or character mode.
NOTE: The communication mode (e.g. master Uni-Telway, Uni-Telway slave or character mode) is the same on both the TER and AUX connectors.
NOTE: TSX P57 554, TSX P57 5634 and TSX P57 6634 processors do not have an AUX port. Using a TSX P ACC 01 insulating device makes it possible to duplicate the terminal port in order to use two TER and AUX ports.
Atrium PLCs
Atrium processors have one single TER terminal port which is identical in all respects to the TER terminal port on Premium PLCs. This is a non-insulated RS 485 link which is made up of a 8-pin mini DIN connector which is used to physically link up a device, such as a programming/adjustment terminal or a man-machine interface console.
This connector is used to supply power to a device which does not have its own power supply (connecting cable converter RS 485/RS 232, insulating device TSX P ACC 01, etc).
The terminal port functions by default in master Uni-Telway mode. Via configuration it is possible to switch to Uni-Telway slave or character mode.
NOTE: Using a TSX P ACC 01 insulating device makes it possible to duplicate the terminal port in order to use two TER and AUX ports like on the Premium PLC processor.