RS-232 Messages
Chapter Six: RS-232 Communications Option
96
Trip Point Messages
The Trip Point messages, listed in Table 23, require the <id> entry to identify the trip point:
@parameter id data
ENTER
where:
id
=
0 for Trip Point A
=
1 for Trip Point B
Refer to The [TRIP POINTS] Key, page 54, for a complete description of the trip points.
Trip Point Messages
Parameter Entry
Action
Data for a Command
Data for a
Request
40
High Trip Point
ASCII number ranging from -105%
to +105% of transducer full scale
‘?’
41
Low Trip Point
ASCII number ranging from -105%
to +105% of transducer full scale
‘?’
42
Trip Point Hysteresis
ASCII number from 0 to 10 (used as
a % of trip point value)
‘?’
43
Relay Normal
Configuration
0 = De-energized
1 = Energized
‘?’
44
Trip Point Channel
0 = Channel 1
1 = Channel 2
2 = Channel 3
‘?’
45
Latch Mode
0 = Disabled
1 = Enabled
‘?’
Table 23: RS-232 Trip Point Messages
Example 1: How To Configure the Trip Point Values
1. To set the trip point high value for TP A to 900, issue the following command:
@400900
ENTER
The 670 instrument will return the same command to indicate that the command was
accepted and implemented.
2. To set the trip point low value for TP A to 450, issue the following command:
@410450
ENTER
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