BOP HIPWR 091719
3-67
When working in echo mode, it is possible to receive the NAK (15 hex) from the BOP. This indi-
cates an unknown quantity of echoed characters have been lost due to a queue overflow prob-
lem. The error queue will also contain the
-400, QUE error
message, To prevent this, please
ensure the received data string does not exceed 127 characters between line terminators and
no more than four queries are sent between line terminators in SCPI mode of operation
All non-control characters are sent via the serial port of the command originator.
3.5.6.2.3 PROMPT METHOD
The command originator sends a message line (command) to the BOP and waits until the
prompt sequence CR LF > (3E
H
, 62
10
) is received. The BOP sends the prompt sequence
CR LF > to the command originator indicating the power supply is ready to receive the next
command and data will not be lost. This method is useful in an interactive mode as well as with
certain process controllers.
3.5.6.3
USING SCPI COMMANDS FOR RS 232 COMMUNICATION.
The unit will automatically go into remote mode for each command received.
3.5.6.4
ISOLATING RS 232 COMMUNICATION PROBLEMS
A Loop Back test can be run from the front panel to aid in isolating RS 232 communication prob-
lems. The unit is designed to pass the test only with the Loop Back test connector (part of Kit
219-0436, see Table 1-4) installed.
1. From the power-up screen press
%
key to enter the General Setup menu, then highlight
Revisions/TEST. press
!
to enter the Test Subsystem menu.
2. Highlight Serial and press
!
to run the test with the Loop Back Test connector NOT
installed and verify the LCD reads
Failed
. If the LCD reads
Passed
, the power supply is
defective and requires repair.
3. Install the loop back test connector into RS 232 port and press the
!
key to rerun the test.
If the LCD reads
Passed
, the power supply is operating properly. If the LCD reads
Failed
,
the unit requires repair.
4. To test the integrity of the cable assembly connecting the power supply RS 232 port to the
computer, remove the Loop Back test connector from the power supply RS 232 port and
connect the cable in its place. With the DB9 adapter installed on the opposite end of the
cable, connect a short jumper wire between pins 2 and 3 of the adapter connector and
repeat the test of step 3 above. If the LCD display reads
Failed
, the cord is either the
improper type (not null modem) or is defective. If the LCD display reads
Passed
, the cable is
correct; remove the jumper and reconnect the cable to the computer.
If each of the above steps is completed successfully, the problem lies in the computer hard-
ware and/or software. Refer to the Product Support area of the Kepco website for additional
information regarding RS 232 communications problems: www.kepcopower.com/support.
3.5.7
LAN OPERATION (ME MODELS ONLY)
Once the LAN interface is properly installed (see PAR. 2.7.6) and configured (see PAR. 3.5.3.4),
BOP (ME Models) can be operated from a remote location using the LAN interface via a web
browser as described in the following paragraphs.
Summary of Contents for BOP-ME 1KW
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Page 20: ...xii BOP 1K 091719 FIGURE 1 1 HIGH POWER BOP SERIES POWER SUPPLY...
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Page 64: ...2 22 BOP HIPWR 091719 FIGURE 2 11 PARALLEL CONFIGURATION LOCAL SENSING TYPICAL...
Page 65: ...BOP HIPWR 091719 2 23 FIGURE 2 12 PARALLEL CONFIGURATION REMOTE SENSING TYPICAL...
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Page 161: ...BOP HIPWR 091719 3 85 FIGURE 3 29 STATUS REPORTING STRUCTURE...
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