Relay Modules; Ethernet Modules - ABB SM1000 User Manual

Videographic Recorder
SM1000

4.8.2 Relay Modules

4.8.3 Ethernet Modules

Refer to the Ethernet Communications Option User Guide Supplement (IM/SMENET) for information on how to install, configure and
use the instrument on an Ethernet network and for information on configuring and using the e-mail facility.
90
Offset adjust / Span adjust
Manually fine-tune the offset adjust and span adjust values to
remove process errors. These are calculated values applied to
the raw input signal.
Note. If simulating thermocouple inputs, connect the millivolt
source using appropriate
Section 5.4.2, page 100. For 2-lead resistance thermometers,
either connect the resistance box at the sensor end of the leads
or add the lead resistance to the calibration values.
Engineering
High
Adjusted
Value
Engineering
Low
Unadjusted Value
Engineering Engineering
Low High
Without Adjustment
(Span Adjust = 1, Offset Adjust = 0)
Select the relay source (a digital source) to be used to energize/
de-energize the relay.
Note. If the relay is used to provide a totalizer count pulse, the
maximum pulse frequency is 5Hz. Consideration must also be
given to the mechanical life of the relay.
Select the relay source polarity.
Note. When polarity is set to 'Positive', the relay is energized
when the digital source is active (On).
4 Configuration
compensating cable –
Engineering
High
Adjusted
Value
Span Adjust (<1)
Offset Adjust (>0)
Engineering
Low
Unadjusted Value
Engineering Engineering
Low High
With Adjustment
(typical example)
IM/SM1000 Issue 11
see