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dvanced
S
ensor
T
echnologies,
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nc. U.S.A.
Website:
www.astisensor.com
IOTRON
TM
Trademark of ASTI
IOTRON
TM
pH / ORP / ISE / DO / Conductivity Measurement Products Lines
“Sensor Type” Menu
The table at the bottom of this page details the node
address that should be assigned for each sensor type
depending upon the channel to which it is to be
commissioned (installed). This information is also
shown in the “Sensor Type” screen as can be seen to
the right. Clicking on the sensor type will assign the
node address as appropriate for the current working
channel that has been previously selected.
Note that the sensor type can ONLY be configured
for the currently selected channel.
The sensor type for the current channel can be
changed by clicking on one of the the available
HiQDT sensor types (pH, Standard ORP, Wide
Range ORP or Dissolved Oxygen D.O.). For each
sensor type the correct node addresses are shown for
channel 1/2/3 where the numbers are the proper
node address for the given channel. While this node
address will be set for the selected channel please be
sure to confirm that the sensor you plan to use for
this channel has already been configured for the
correct node before making the change in the
controller configuration.
Current working node changes to selection after
update sensor button is pushed and confirmed.
Node Address Scheme when using with ASTI Touchscreen HiQDT PLC Controller
When HiQDT sensor is used with ASTI Touchscreen HiQDT PLC Controller then node address MUST be set as defined in
the table below. If HiQDT sensor & controller are ordered together the node addresses would be preset at factory.
Channel #
1
2
3
Node Range
1-40
41-80
81-120
pH sensor
1
41
81
Standard ORP sensor
2
42
82
Wide Range ORP Sensor
3
43
83
Dissolved Oxygen Sensor
4
44
84
Reserved for future
HiQDT sensor types
5-40
45-80
85-120
COMMISSIONING AND SETUP:
ONLY the ASTI HiQDT Windows software or ASTI Handheld Communicator (HHC) can change the node address of
the HiQDT smart digital RS-485 MODBUS RTU sensors (see respective manuals for details).
SENSOR COMMUNICATIONS:
If a channel that has been configured loses communications this event will be scrolled across the top of the home
screen and written to the system log. If email notifications have been setup an email will also be sent in such an
event. Placing a sensor on output hold will not halt the sensor communications warning if it is removed from service.