Talk/Listen Use, For Remote Programming And Data Transfers - IET Labs, Inc. RLC Digibridge 1693 User And Service Manual

1693 RLC Digibridge
Character
Sequence
Pass/fail
1
2 Format
3 Label
4
5
6
7
8
9 Format
10,11 Bin Number
12 Equivalence
13-17 Sum
18
19
Bin Summary Output Format, Table 3-24. The bin
summary output can be enabled by the [SHIFT][BIN
SUM] [LOCK] sequence from the keyboard. (It can
also be enabled by the El command from the bus. See
paragraph 3.11.12.) The bin summary output consists
of 15 lines, one apiece for the 15 bins (00 through 14).
Each line has the format shown in the table.
3.11.13 Talk/Listen Use, for Remote
Programming and Data
Transfers
Observe the REMOTE CONTROL indicator light. If
it is lit , there is no opportunity for manual operation
(except switching EXTERNAL BIAS ON and OFF
and use of the START button if manual start is en-
abled .) The displays may be observed then, but their
content is controlled by the system controller, via the
IEEE-488 bus. Details of test program preparation are
beyond the scope of this manual. Refer to Table 3-21
for an example of message activity during a control
sequence in which the controller says "start" and the
Digibridge (after a measurement) says "C µF 1.2345".
94
Allowed
Purpose
Characters
(space)
F
(space)
B
I
N
S
U
M
(space)
123456789
=
123456789
(CR)
(LF)
Table 3-24: BIN summary data output format
Meaning
Go (bins 01 to 13)
No-Go (bins 00 or 14)
The word "BINSUM"
Bin number assignment, 00 to 14
Equals
Total number counted in this bin, the bin-summary number.
The standard "carriage return" and "line feed" characters;
end of string.
Programming Guidelines. If the Digibridge is to be
programmed (TALK switch set to TALK/LISTEN),
keep the following suggestions in mind.
• An "unlisten" command is required before
measurement is possible.
• If not addressed to talk, the Digibridge sends
a service request (SRQ low) when it has data
ready to send.
• Then SRQ will not go false (high) until the
Digibridge has been addressed to talk or has
been serially polled. A typical program might
include these features:
• * Initial Setup: with ATN true, "untalk unlis-
ten, my listen address (of Digibridge) , my
talk address (of CPU)"; then with ATN false,
measurement conditions.
• Measurement Enabling Sequence, for example:
untalk the Digibridge, send a GET, unlisten the
Digibridge.
• After the CPU receives the SRQ, necessary
enabling of data transfer: with ATN true, "un-
talk, unlisten, my listen address (of CPU), my
talk address (of Digibridge)"; then ATN false.
Operation