Vigilantplant TDLS8000, User Manual

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User’s
Manual
All Rights Reserved. Copyright © 2017, 2nd Edition: Jun. 5, 2017 (YK)
Supplement
TDLS8000
Tunable Diode Laser Spectrometer
IM 11Y01D01-01EN 1/7
3rd Edition
Thank you for selecting our TDLS8000 Tunable Diode Laser Spectrometer.
Please be notified of the following information on the additional function of the product. This is to
be added to User’s Manual “IM 11Y01D01-01EN 3rd Edition” attached to the product. Read this
information carefully before using the product.
Note
n
Change of software for TDLS8000 (Ver. 1.02.02)
Backup function has been available so far for an error occurrence at an analog input. But the backup
function is now available as well , even via Modbus network to restore data of process pressure or
temperature.
l
Addition: Section 6.1.2 Process Pressure (pp.6-1, 6-2)
(applied also to the section 6.1.3 Process Temperature.)
· In order to input via Modbus network, take notice how the Modbus network should correspond to
the backup function as below.
When backup operation starts (the system
starts restoring data)
When backup function stops
Modbus is off First pressure value is input via Modbus network
NOTE
Maintain Modbus network connected when the backup function is actiavted. If you want to shut down the
Modbus network regularly, set the backup mode “Disable”.
· If you select “Disable” in the backup mode, the last pressure value you enter remains valid
i.e. in the same status as “Hold”.
· After the power of TDLS8000 turns on, the backup function keeps active until the first
pressure value is received. During this period, when you select “Hold”, or “Disable” in the
backup mode, the pressure values will be on hold at the equivalent of the one obtained
within the Analog input range mentioned below (3) with 4mA.
l
Addition: Section 11.4 Hold Register on page. 11-5.
NOTE
As a default setting, when Modbus connection is shut down, the backup operation starts to restore data of
temperature and pressure value. If you want to change or disable this backup function, see the description
on the backup mode in the section 6.1.2.