Ae Bus Transmission Parameters; Setting The Unit's Network Address - Advanced Energy Pinnacle User Manual

Pinnacle™ 20 kW

AE Bus Transmission Parameters

The communications capability of the serial AE Bus Host port is limited to the
following parameters:
• RS-232 protocol, RS-422, or RS-485 transmission standard
• Four baud rates, selected by the DIP switch (see Table 4-16 on page 4-55)
• Odd parity
• One start bit, eight data bits, one stop bit
• Low-order bytes are transmitted before high-order bytes.
The time-out period for the Pinnacle is factory set at 0.02 seconds (that is, no more
than 0.02 seconds can elapse between bytes, or the unit will reset and begin searching
for a new message packet). Use command 40 to change this value.
The host computer must finish one transaction with the Pinnacle before it initiates
another one, either with the same unit or any other unit.
Note: The Pinnacle sends data through pin 2 (TXD.D). This pin must be connected to
the receive pin (RXD.D) on the host computer's serial connector. The receive
pin is normally pin 2 for a standard, 9-pin serial port and normally pin 3 for a
standard, 25-pin serial port.
Note: If you are using RS-422 or RS-485, the Pinnacle sends and receives data
differentially. Thus, pin 6 (TR- or R-) and pin 7 (TR+ or R+) are either
RS-485 transmit and receiver lines or RS-422 receiver lines. Pins 8 and 9 are
RS-422 transmit lines.

Setting the Unit's Network Address

You can use the DIP switch to set the network address of the Pinnacle unit.
5702156-E I/O Communication and Control 4-49