Model 6517B Electrometer Reference Manual
Section 11: Remote operations
6517B-901-01 Rev. C / August 2015
11-23
Error messages
The following error messages are associated with RS-232 interface operation. These error messages
are also listed in
Status and error messages
(on page 2-11). Note that any of the following errors sets
Bit B11 of the Operation Condition Register.
Error messages
Error code
Error message
Description
+800
RS-232 framing error detected
Start or stop bit mismatch between computer and
Model 6517B.
+801
RS-232 parity error detected
Parity type mismatch between computer and Model
6517B.
+802
RS-232 overrun detected
Data received before previous data can be read.
+803
RS-232 break detected
A break occurred (device-clear occurs).
+804
RS-232 noise detected
Noisy signal that could corrupt data.
+805 Invalid
system
communication
RS-232 interface selection lost on power-up;
instrument defaults to GPIB.
+806
RS-232 settings lost
RS-232 settings lost on power-up.
+807
RS-232 OFLO; characters lost
A character was received but discarded due to a lack
of input buffer space. Each line-feed character
(<LF>) closes a buffer and opens another. Thus, if
too many line-feeds are sent in succession, then all
buffers are filled before they have a chance to be
read.
+808
ASCII only with RS-232
A data format other than ASCII was selected.
