Min-Switches; Figure 4-15. Location Of The Internal Dip Switch On The Master/Slave Interface Card - Advanced Energy Pinnacle 20 kW Manual

Figure 4-15. Location of the internal DIP switch on the master/slave interface card

MIN-SWITCHES

The first five min-switches (A4 to A0) are used to specify the address of a Pinnacle unit (see
Table 4-14 on page 4-48), which a host computer must include in the message packet it sends.
Each Pinnacle supply in a network must have a unique address.
The next two min-switches (BR1 and BR0) specify the serial AE Bus (Host) port's baud rate
(see Table 4-14 on page 4-48). The last min-switch allows you to choose between RS-232 or
differential communication (RS-485 or RS-422). RS-232 is selected when the switch is up.
Differential communication is selected when the switch is down.
Disconnect all sources of input power before working on this unit or anything
connected to it. In addition, take proper ESD precautions before removing the unit's top
cover to position jumpers.
The mode of differential communication (that is, RS-485 or RS-422) is selected via the jumper
labeled as such. Place the jumper across pins 1 and 2 for RS-485 (labeled 485). Place the
jumper across pins 2 and 3 for RS-422 (labeled 422).
If you have selected RS-422 or RS-485, you also have to set two terminator jumpers. If have
selected RS-422 or if your Pinnacle unit is the last device on an RS-485 multi-drop chain,
place the jumpers across pins 1 and 2 (labeled Term.). If you have selected RS-485 and your
Pinnacle unit is not the last device on a multi-drop chain, place the jumpers across pins 2 and 3
for no termination.
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I/O Communication and Control
Pinnacle™ 20 kW
4-47