GPIB/RS-232 Programming
Sorensen SLM-4 Chassis
The connections for the rear panel RS-232 interface are shown below; Figure 4–1a depicts the
connector wire diagram, and Figure 4–1b depicts the connections using a standard RS-232
cable.
RS-232C Port
On SLM Mainframe
TxD
Rxd
RTS
CTS
.
.
.
Inside the
SLM Mainframe
TxD
Rxd
RTS
CTS
DSR
GRN
DCD
DTR
PC RS-232C Port
TxD
Rxd
RTS
CTS
.
.
.
Fig. 4.1a
Fig. 4.1b
2
3
4
5
6
7
8
9
RS-232C Port
On SLM Mainframe
TxD
Rxd
RTS
CTS
.
.
.
Inside the
SLM Mainframe
TxD
Rxd
RTS
CTS
DSR
GRN
DCD
DTR
PC RS-232C Port
TxD
Rxd
RTS
CTS
.
.
.
Fig. 4.1a
Fig. 4.1b
2
3
4
5
6
7
8
9
Figure 4–1 RS-232 Interface Diagram
The following RS-232 setting commands are
channel-dependent
commands except ”CHAN”
which is a
channel-specific
command; therefore, for proper program execution ”CHAN” should
be sent first, and then the
channel-dependent
command.
For example:
Short ON of Channel 1 of SL-series Electronic Load module, the RS-232 programming
command is: CHAN 1;SHOR ON.
As with the GPIB commands, the following RS-232 commands with [GLOB:] option can set all
the SL-series Electronic load modules in the SLM chassis to be active simultaneously. This
feature can greatly reduce the testing time and increase efficiency.
4.4 GPIB/RS-232C COMMAND LIST
4.4.1
Command Syntax Abbreviations
SP
:Space, the ASCII code is 20 Hexadecimal.
;
:Semicolon, Program line terminator, the ASCII code is OA Hexadecimal.
NL
:New line, Program line terminator, the ASCII code is OA Hexadecimal.
N
:Integer from 1 to 8.
NR2
:Digits with decimal point. It can be accepted in the range and format of ##.#####.
Example:
30.12345, 5.0
4-2
M540069-01 Rev B
Summary of Contents for SLM-4
Page 2: ......
Page 4: ...This page intentionally left blank ii...
Page 6: ...This page intentionally left blank iv...
Page 8: ...This page intentionally left blank vi M540069 01 Rev B...
Page 12: ...This page intentionally left blank x M540069 01 Rev B...
Page 26: ...Operation Sorensen SLM 4 Chassis This page intentionally left blank 3 6 M540069 01 Rev B...
Page 56: ......
Page 60: ...Appendix A Sorensen SLM 4 Chassis This page intentionally left blank A 4 M540069 01 Rev B...
Page 70: ...Appendix B Sorensen SLM 4 Chassis This page intentionally left blank B 10 M540069 01 Rev B...
Page 72: ...Appendix C Sorensen SLM 4 Chassis This page intentionally left blank C 2 M540069 01 Rev B...
Page 74: ...Appendix D Sorensen SLM 4 Chassis This page intentionally left blank D 2 M540069 01 Rev B...