PPC2+™ Operation and Maintenance Manual
Page 89
©2001 DH Instruments, Inc.
AUTOZERO
Purpose
Read or set the status of the automatic zero function.
Command
Query
“AUTOZERO
n”
“AUTOZERO?”
Classic “AUTOZERO=
n”
“AUTOZERO”
Default
“AUTOZERO 1”
Arguments
n:
’0’ Autozero OFF
’1’ Autozero ON
Remarks
The PPC2+ autozero function can be turned ON and OFF.
Example
(enhanced)
Cmd sent:
Query reply:
“AUTOZERO 1”
“0” If autozero OFF
“1” If autozero ON
Example
(classic)
Sent:
Query reply:
“AUTOZERO=1”
“AUTOZERO=0” If autozero OFF
“AUTOZERO=1” If autozero ON
Errors
ERR# 6:
The argument was other than a ‘0’ or a ‘1’.
See Also
Section 3.4.1
COM1
Purpose
Read or set the RS-232 settings for the COM1 port.
Command
Query
“COM1
baud, parity, data, stop”
“COM1?”
Classic “COM1=
baud, parity, data, stop”
“COM1”
Arguments
baud:
The baud rate. This may be ‘300’, ‘600’,’1200’,’2400’,’4800’, ‘9600’
or ‘19200’
parity:
The data parity. This may be ‘O’ for odd, ‘E’ for even, or ‘N’ for none.
data:
The number of data bits. This may be ‘7’ or ‘8’
stop:
The number of stop bits. This may be ‘1’ or ‘0’
Defaults “COM1
2400,E,7,1”
Remarks
The COM1 port is used to communicate to the PPC2+. When the COM1 port
configuration of the PPC2+ is changed, the program message reply (COM1 use only)
will be sent at the old COM1 settings, but all subsequent communications will be
accomplished at the new COM1 settings.
Example
(enhanced)
Cmd sent:
Query reply:
“COM1 9600,N,8,1”
“9600,N,8,1”
Example
(classic))
Sent:
Reply:
“COM1=9600,N,8,1”
“9600,N,8,1”
Errors
ERR# 7:
Missing or improper program message argument(s).
See Also
Section 3.4.4.1, “PASSTHRU”
Summary of Contents for PPC2+
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