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9.1.2 Enable a CTFS [Conductivity, Temp,
Flow, Serial] Sensor
1- Press the MENU key.
2- Use the Up and Down ARROW keys to find
and point to the System choice and press
OK.
3- Scroll down to Enable I/O and press OK
4- Scroll down to the CTFS sensor you wish to
enable and press F3 (Enable) Note the letter
assigned to this sensor! It will be used in
steps 7 and 9 below.
5- From the Enable I/O line, press OK
6- Scroll down to an unused analog input (A
through N) and press F3 to ENABLE it.
7- Scroll up until you see the temperature
assignment for the new CTFS. (A1 in this
example. It will have the first letter from step
4 above.) Press F3.
8- From the Enable I/O line, scroll down until
you find an unused digital input, (O through
Z) and press F3, ENABLE.
9- Scroll up until you find the Contact Set
assigned to the sensor in step 4 above. A2
in this example. Press F3 to SELECT.
10- Press ESC (Escape) to go back
9.2 Naming an Input or Output
9.3 Changing a Descriptor
Once you have enabled an input or output,
naming is helpful in avoiding programming
mistakes. Choose a name that describes the
sensor so that when multiple sensors of the
same type are on the same controller or
process, it is easy to tell them apart. An
abbreviation of the application is recommended.
(e.g. pH Tower 2)
This procedure is the same for all I/O points;
Inputs and Outputs, digital and analog and
includes 4-20mA points. When you name an
input, you are changing the "descriptor". This is
how it is done:
1- Press MENU.
2- Scroll down to I/O Setup. Press OK.
3- Scroll down to the relay you chose to name
and press OK. If your relay is not listed, it is
not enabled. See 10.2, Determine if a
Relay is Enabled.
4- Press OK to edit the "descriptor" of the
relay.
5- Notice the F2 key represents the word
'alpha'. You have three choices, ALPHA
(upper case letters), alpha, (lower case
letters), and NUMBERS, 0 through 9. Since
the lower case
'alpha' is seen, please realize that this is a
choice, not the current selection.
6- The default choice is upper case so use the
up and down arrows to change the R in
Relay to B for Blowdown or A for acid, etc.
7- Use the right arrow to move to the second
Page 49 of 102
Programming the Inputs
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