KEPCO KLP Series Developer's Guide, Rev 1 - Manual (Page 95)

KLP-DEV 031113
8-1
SECTION 8 - RS 232C INTERFACE [-1200 MODELS ONLY]
8.1 DIGITAL REMOTE MODE PROGRAMMING USING RS 232 [-1200 MODELS ONLY]
KLP -1200 Model Power Supplies may be programmed over the RS 232 control bus using SCPI
(Standard Commands for Programmable Instruments) (see Section 6). Refer to Table 8-1 for
RS232 input/output signal allocations. All power supply functions available from the front panel
can be programmed via remote commands, as well as some that are not available from the front
panel: Save/Recall (see PAR. 1.2.5), List (see PAR. 1.2.6) and Relay Control (see PARs. B.11
and B.12).
8.2 RS232-C OPERATION [-1200 MODELS ONLY]
The KLP Power Supply may be operated via an RS232-C terminal, or from a PC using a termi-
nal emulation program. Refer to KLP User Manual for RS 232 connections.
All RS 232 parameters may be changed using SCPI commands (see Appendix B) as follows:
• To enable RS 232, refer to PAR’s B.86 and B.87
• For baud rate, refer to PAR’s B.82 and B.83
• For prompt, refer to PAR’s B.90 and B.91;
• For echo, refer to PAR’s B.84 and B.85;
• For XON/XOFF, refer to PAR’s B.88 and B.89.
The default settings are as follows:
• Baud rate: 38400
• Parity:
None
• Data Bits 8
• Stop Bits 1
• Echo OFF
• XON ON (enabled) NOTE: Kepco strongly recommends the XON XOFF method
for data transfer via RS 232 protocol for all Kepco products. If this method is not
selected, it is the user's responsibility to ensure completion of any response by the
power supply prior to issuance of subsequent commands.
TABLE 8-1. RS232-C PORT CONNECTOR (J3) PIN ASSIGNMENTS
PIN SIGNAL NAME FUNCTION
1 SGND Signal Ground
2 RXD Receive Data
3 TXD Transmit Data
4 DTR Data Terminal Ready (protocol not used)
5 SGND Signal Ground
6 DSR Data Set Ready (protocol not used)
7 RTS Request To Send (protocol not used)
8 CTS Clear To Send (protocol not used)
9 SGND Signal Ground