KEPCO BOP-GL 1KW, Operator'S Manual

Page: 99 / 174

BOP-1K-GL 111315
3-35
3.6.4.2.3 PROMPT METHOD
The command originator sends a message line (command) to the BOP and waits until the
prompt sequence CR LF > (3E
H
, 62
10
) is received. The BOP sends the prompt sequence
CR LF > to the command originator indicating the power supply is ready to receive the next
command and data will not be lost. This method is useful in an interactive mode as well as with
certain process controllers.
3.6.4.3 RS 232 SERIAL PORT SETUP
The unit must be in remote mode before the RS 232 commands to affect the output can be exe-
cuted (e.g., VOLT 10;OUTP ON). This can be accomplished by sending SYST:REM ON prior to
sending any commands that affect the power supply output. (See PAR. B.141 and Figure B-12).
Verify that the DIG. CTRL LED on the front panel is lit.
Paragraphs 3.6.4.3.1 through 3.6.4.3.4 below describe the commands required for the BOP to
communicate via the RS 232C Serial bus using SCPI commands. NOTE: If the default.
NOTE: To save RS 232 configuration changes for subsequent power-up cycles, send
MEM:UPD:SER and tag unit with new revised power-up setting(s).
3.6.4.3.1 SELECT BAUD RATE
The default baud rate is 9600, established by power-up switch S3-1 set to 0 during Reset
Power-up. To establish a baud rate of 19.2K upon power-up, set power-up switch S3-1 to 1 and
perform the Reset Power-up (see PAR. 3.3.2.1). The baud rate can also be changed using the
command SYST:COMM:SER:BAUD (see PAR. B.124). To save changes for subsequent power-
up cycles, send MEM:UPD:SER and tag unit with new power-up setting.
NOTE: If changes to the RS 232 configuration must be implemented using the RS 232 port
rather than the GPIB port, it is recommended to send the commands at no more than
one command every 10 seconds.
3.6.4.3.2 CONFIGURE ECHO PROTOCOL
The ECHO protocol can be enabled/disabled using the SYST:COMM:SER:ECHO command
(see PAR. B.126). See PAR. 3.6.4.2.2 for a description of echo mode. The *RST command has
no effect on echo status. See PAR. 3.5.5.2 and Figure 3-6 for special programming consider-
ations.
Enable - Causes all subsequent characters to be echoed back.
Disable - Turns off the character echo after the next line terminator character.
3.6.4.3.3 CONFIGURE XON/XOFF PROTOCOL
The XON/XOFF protocol can be enabled/disabled using the SYST:COMM:SER:PACE com-
mand (see PAR. B.128).
Enable - Allows BOP to control when data is received (see PAR. 3.6.4.2.1 for a description of
Xon/Xoff protocol).
Disable - Disables XON/XOFF. If both Serial XON/XOFF and Prompt functions are disabled,
Echo mode is set (see PAR. 3.6.4.2.2 for a description of echo mode).