AR 10010475, Operating And Service Manual

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40T18G26A
Table 3-8. *STB?; Response Codes
(The command *STB?; causes the TWTA to send a string containing an operational state code consisting of 2
ASCII characters representing hex digits. The response is in the form
STATUS: [x][y][eol] where the hex
values of [x] and [y] are formed as shown below)
y bit Meaning
0 (LSB) Power status; always 1(power on)
1 Standby status; 0 if not in standby, 1 if in standby
2 Operate status; 0 if not in operate, 1 if in operate
3 (MSB) Fault status; 0 if no fault, 1 if fault exists
x bit Meaning
4 (LSB) Mode switch; always 1 (reset)
5 Blank switch; always 1 (off)
6 Blank status; always 0 (off)
7 (MSB) Not used; always 0
Table 3-9. Catalog of Heater Auto Off Time Delay Codes
Argument Meaning
0 0.5 hour heater auto off time delay
1 1.0 hour heater auto off time delay
2 1.5 hour heater auto off time delay
3 2.0 hour heater auto off time delay
4 2.5 hour heater auto off time delay
5 3.0 hour heater auto off time delay
Command syntax is in this form:
<command mnemonic> <parameter> <carriage return>
where:
<command mnemonic> consists of one of any valid command found in Table 3-3 ;
<parameter> (as applicable) consists of one ASCII space character followed by a number; and
<carriage return> consists of an ASCII carriage return.
All commands are case-sensitive.
The system will return parameter values, fault codes, and status codes regardless of whether remote is
enabled. The parameter value is returned as a string of 20 characters or less, consisting of a label,
= , and a
value. For example, outputting the command RDEF to the TWTA would result in the TWTA sending back
the string
Ef=6.03 (assuming the heater voltage is 6.03 volts). Units are usually not returned; see Table 3-3
for the units.
If remote is not enabled, set commands and commands to the system logic (i.e., OPERATE; or STANDBY;
or RESET;) will not be accepted.
It is recommended that the RDSTAT command be used to provide the host program with a report on how a
command was processed.
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