Delay Flag; End Output - HP 3320A Operating And Service Manual

Model 3320A/B
Section 1II
Character Octal Binary
Table 3-5. ASCII Programming Codes.
Digits for address·;
amplitude, frequency,
vernier, etc.
·Address clear
Amplitude preface
Command (initiates delay)
Delay code preface
Frequency preface
Vernier "IN"
Vernier "OUT"
Range preface
Vernier preface
Polarity of amplitude
Polarity of amplitude
a
10 Hz
~
optional
1 100 Hz (A6 assembly)
2
1000 Hz
3
10 kHz
4 100 kHz
5 1000 kHz
6 10 MHz
Range Codes
Character Range
?
a
1
2
3
4
5
6
7
8
9
+
A
C
D
F
K
M
R
V
077 0111111
101 1000001
103 1000011
104 1000100
106 1000110
113 1001011
115 1001101
122 1010010
126 1010110
053 0101011
055 0101101
060 0110000
061 0110001
062 0110010
063 0110011
064 0110100
065 0110101
066 0110110
067 0110111
070 0111000
071 0111001
054 0101100 Function execute
I
111 1001001 local enable
• Address and clear must be accompanied by an MAE. On the
3260A Card Reader, MRE = 200 (address"" -267, clear
=
277).
Mnemonic
Signal Name
DAC
Data Accepted
DAV Data Valid
MRE
Multiple Response Enable
REN
Remote Enable
RFD
Ready For Data
SRO
Service Request
EQP
End Output
Dial
DI02
DI03
DI04
Data Input/Output
DI05 bits 1 through 8.
DI06
D'07
DI08
Table 3-4. GPIB Bus Signal Mnemonics.
3-39. For convemence and brevity, each GPIB bus signal
line is identified by a mnemonic, which is an abbreviation
of the signal name. Table 3-4 lists the seven control lines
and eight data lines used on the GPIB bus.
3-38. A principal advantage of the GPIB bus system is that
all information
is
routed over the same 15 lines. For this
reason standard cables are used to connect each instrument
to the bus. Section II lists the GPIB bus cables available.
3-37. The listen address for the 3320B is normally the
ASCII character 3, octal code 063, but may be changed by
means of internal jumper wires on the GPIB Input
Assembly (A37). Instructions for changing the address are
given in Note 2, Figure 7-14. Table 3-3 lists the different
addresses which can be assigned.
3-40.
An
H preceding a mnemonic indicates that the signal
is HIGH true, L indicates LOW is true. For example, L
DAV indicates that a LOW true signal is required for a data
Valid signal. All GPIB lines are LOW true except H RFD
and H DAC, which are HIGH true. Table 1-2 lists the signal
levels required.
NOTE
In the 3320B the Data Input/Output bit 8
(DI08) and Service Request (SRQ) are not used
(no connections).
GND
(ll eala InpUI Bil 2
III Dilla InpUI Bit .(
III Dilla Input Bit 6
(ll
Dati Valid
IHl Ready For Dala
tLl
End Output
CIRCUIT SIO£
IOOTTOM
B
0 _
DB
DC
0 0
DE
OF
OH
OJ
OK
OL
0 .
ON
OP
OR
Os
OT
OU
OV
GND
III Dalil Input Bit 1
III Dilil Input Bil
3
III Oil. Input Bit 5
III Data Input Bill
(ll Remote Enable
(til
Oil' Acupled
III Multiple Rap,)n5:\!
Enable
III Delay Flag
COMPONENT SlOE
,~
_
0 1
0 2
0 3
0 4
0 5
0 5
0 1
0 '
0 '
DID
011
012
013
014
015
018
011
o
1B
3-41. All 3320B front panel functions are programmable
with the exception of the last vernier digit and the line.
Table 3-5 lists each of the functions and the octal codes,
the ASCII character for each code, and the seven bit binary
code for each octal code. The binary code is applied to the
seven Data Input lines on the remote input/output con-
nectar. Figure 3-4 shows the remote connector pin numbers
and the input/output signals for each pin.
Figure 3-4. GPIB Input Connector.
3-42. The first step in GPIB programming is to address the
3320B. Addressing is accomplished by applying the address
code to the data line, setting the MRE (Multiple Response
Enable) LOW, and setting DAV (Data Valid) LOW. An
example program is listed in Table 3-6. The 3320B does not
3-5