The RS423 and GPIB Ports. Remote Control 1250 Frequency Response Analyzer
13-10 AMK/1250/4
Self Test Codes, ?TS. The Self Test Results Code will produce a zero if the test
passes, but a number (as given in Section 13.7.19) if it fails. The meaning of fail
numbers is given in the Maintenance Manual.
To use the Self Test Commands:
1. Send TT1, and pause 2 seconds whilst the 1250 performs a Self Test.
2. Send ?TS0 to determine whether the overall test has been passed or failed. A
number is returned: 0 =pass, 1 =fail.
3. If the Self Test has failed, determine which section of the 1250 has failed by sending
successively ?TS1 (processor RAM), ?TS2 (processor ROM), etc., until a non-zero
response is elicited, signifying a test failure.
13.7.3 GENERATOR COMMANDS
Facility Parameter Code Arg Meaning Max Min Init
Frequency FR F 65535 1E-5 ne
Amplitude AM F 10.23* 0 ne
Bias BI F 10.23 -10.23 ne
Waveform WF I 0=sine
1=square
2=triangle
2 0 sine
Modulation MO I 0=off
1=on 1
2=on 2
2 0 off
STOP AT SQ I
0=0°
1=90°
2=180°
3=270°
3 0
0°
STOP
GENERATOR
SG none
START
GENERATOR
RG none
* 5.11V for triangle waveform; 11.00V for 1250N
13.7.4 SYNCHRONISER COMMANDS
Facility Parameter Code Arg Meaning Max Min Init
On/Off SY I 0=off
1=tight lock
2=loose lock
2 0 off
Level LE F 5.1 -5.1 ne
Ratio SR F 100 0 ne
Slope SL I 0=+
1=-
1 0 +
Coupling AC I 0=dc
1=ac
1 0 dc
Status ?SN none 0=ready
1=idle
2=wait
3=stable
4=locked
4 0 ready
Frequencies ?SF n 0=input
1=max
2=min
3=start
4=stop
5=average
65535
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1E-5
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0
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