KEPCO BOP-GL 1KW Operator Manual Firmware Ver.3.05 and higher - Manual (Page 92)

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BOP-1K-GL 022814
3.6.3.1.3 DETERMINING WHETHER *RST COMMAND SETS THE OUTPUT OFF OR ON
Refer to PAR. B.144 (RO0 or RO1) to configure how the unit responds to the *RST (reset) com-
mand. See PAR. 3.5.8 to understand how the unit behaves when output is off (disabled) or on
(enabled) with different load types.
3.6.4 RS232-C OPERATION
The BOP may be operated via an RS232-C terminal, or from a PC using a terminal emulation
program. The default settings are as follows:
• Baud rate: OFF
• Parity: None
• Data Bits 8
• Stop Bits 1
• Prompt DISABLE
• XON/XOFF ENABLE
To configure baud rate, prompt, echo or XON/XOFF, refer to PAR. 3.6.4.3. Behavior of the serial
interface is described in PAR. 3.6.4.1 and RS 232 Implementation is described in PAR. 3.6.4.2.
3.6.4.1 SERIAL INTERFACE
The serial interface behaves like the GPIB interface in that the command is parsed after receiv-
ing a control character of either a Line Feed or Carriage Return. The serial interface supports six
special control characters. The six special control characters are:
Escape (1B
H
) Causes the input buffer to be cleared. This character is used to ensure
that the buffer is empty when the host powers on since it is possible
that the unit was previously powered on and received some characters
prior to the initialization of the host computer.
Backspace (08
H
) Causes the last character in the input buffer to be removed from the
input buffer queue.
Carriage Return (0D
H
) Causes the input buffer to be parsed by the BOP.
Line Feed (0A
H
) Causes the input buffer to be parsed by the BOP.
3.6.4.2 RS 232 IMPLEMENTATION
The following paragraphs are provided to help the user understand how the RS 232 serial inter-
face is implemented in the BOP. Since the RS 232 protocol does not use a parity bit, the
XON/XOFF method of communication is selected as the default to ensure “handshake” control
of serial communication.
The echo mode is an optional method used to ensure reliable communication between the com-
mand originator (computer) and the BOP power supply, thus avoiding a more complex “hand-
shake” protocol. When the BOP is in the RS 232 echo mode it returns all data sent to the host
controller.