Chapter Six: RS-232 Communications Option
RS-232 Messages
97
Example 2: How To Set the Trip Point Hysteresis
The hysteresis value is defined as a ± percent of the trip point value and can range from 0 to
10%. Refer to How To Adjust Hysteresis, page 78, for a complete discussion of hysteresis.
To set the hysteresis value for TP B to 0.1%, enter:
@421.1
ENTER
The 670 instrument will return the same command to indicate that the command was
accepted.
Note
The 670 instrument will accept fractional entries with or without the
leading zero. For example, you may enter either “@4210.1” or “@421.1”
as the hysteresis value.
Example 3: How To Set the Trip Point Channel
To set the trip point channel for TP A to Channel 3 (assuming that you have a 274
multiplexer connected to the 670 instrument):
@4402
ENTER
The 670 instrument will return the same command to indicate that the command was
accepted.
Note
The 670 instrument allows you to select Channels 2 and 3 even if the 670
is not connected to a 274 multiplexer. This enables you to configure the
670 instrument in one location and then insert it into a system with a 274
multiplexer, without modification.
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