13-21
IM 253421-01E
13
Communication Commands1 (System of Commands before the 488.2-1987 Standard)
13.3 For Users Using Communication Commands of
Digital Power Meter 2533E
The WT200 differ from the 2533E in communication commands and data format. The
WT200 has a function which enables the user to use communication programs created
for the 2533E. This function is described below.
Communication Commands
Under usual conditions, the 2533E commands cannot be used. The “CM” command
should be set to CM2 to be able to use the 2533E commands (for details about the
CM command, see section 13.1, “Commands” (page 13-1)).
Description is given below in alphabetical order of those commands which differ from
the WT200 when the 2533E group is selected.
Note
•
For addressable mode setting method, see pages 10-1 and 10-11.
•
WT200 code format is used for error code and status byte. For details, see to page 10-4 and
15-12. The WT200 code format differs from 2533E code format.
•
To read harmonic analysis data via RS-232-C interface, select a value other than “0” for
handshake mode since harmonics analysis data consists of a number of output bytes.
DS
Sets the delimiter EOI output timing.
This command is used with the 2533E,
but cannot be used with the WT200 even
if the 2533E group is selected by the
“CM” command.
MN/MN?
Sets the measurement mode/inquires
about the current setting.
Syntax
MN m<terminator>
m stands for measurement mode.
m=
0:RMS
1:V MEAN
2:DC
Query
MN?<terminator>
Example
MN0
Description
Parameter error 12 will occur if “m” is set to an
illegal value.
OL
Requests output of setting parameters.
Output format differs from that of the
2533E
Syntax
OL<terminator>
Example
MODEL253421<terminator>
RV9;AV1<terminator>
RV9;AA1;SA50.00<terminator>
DA1;DB2;DC3<terminator>
EA1;EB1;EC1<terminator>
WR2;FL0;SC0;AG0;HD0;MT0<terminator>
MN0<terminator>
KV1.000;KA1.000;KW1.000<terminator>
AT1;AC1<terminator>
IC0;TM0,0,0<terminator>
SO0;SR0,0,0;RO0;RR0,0,0<terminator>
PS1;HA0;OR1;HE1;DF0<terminator>
RT1,0,0<terminator>
YO0;YM1;DY0;YC1<terminator>
CM2<terminator>
SN1;IG0;KH0;DS1<terminator>
END<terminator>
OS
Requests output of setting parameters.
This command cannot be used if 2533E
command group is selected by the “CM”
command. However, in this case the
“OL” command can be used instead.
WR/WR? Sets the wiring system/inquires about
the current setting.
Syntax
WR m<terminator>
m stands for the wiring system.
m=
2:
1
Φ
2W
Query
WR?<terminator>
Example
WR0
Description
Parameter error 12 will occur if “m” is set to an
illegal value.