WattMaster WM-WCC3-TGD-01B - Manual (Page 548)

WCC III Technical Guide 12-52
12. WCC III INSTALLATION
For example the following Satellite Addresses will not work as a
SAT 3C starting address. 1, 2, 3, 4, 5, 6, 7, 9, 10, 11, 12, 13, 14,
15, 17, 18, 19, 20, 21, 22, 23, 25, 26, 27, 28, 29, 30, 31, 33, 34, 35,
36, 37, 38, 39, 41, 42, 43, 44, 45, 46, 47, 49, 50, 51, 52, 53, 54, 55,
57, 58, 59, 60, 61, 62, 63, 65, 66, 67, 68, 69, 70, 71,73, 74, 75, 76,
77, 78, 79, 81, 82, 83, 84, 85, 86, 87, 89, 90, 91, 92, 93, 94, 95, 97,
98, 99, 100, 101, 102, 103, 105, 106, 107, 108, 109, 110, 111, 113,
114, 115, 116, 117, 118, 119, 121, 122, 123, 124, 125, 126, 127,
129, 130, 131, 132, 133, 134, 135, 137, 138, 139, 140, 141, 142,
143, 145, 146, 147, 148, 149, 150, 151, 153, 154, 155, 156, 157,
158, 159, 161, 162, 163, 164, 165, 166, 167, 169, 170, 171, 172,
173, 174, 175, 177, 178, 179, 180, 181, 182, 183, 185, 186, 187,
188, 190, 191, 193, 194, 195, 196, 197, 198, 199, 201, 202, 203,
204, 205, 206, 207, 209, 210, 211, 212, 213, 214, 215, 217, 218,
219, 220, 221, 222, 223, 225, 226, 227, 228, 229, 230, 231, 233,
234, 235, 236, 237, 238, 239, and 240.
Care must be taken to ensure that two SAT 3C controllers do not
have the same address. When this condition is present, the central
computer (WCC III – MCD) does not know where to send the
information, and the information which should be sent to the SAT
3C controller is then usually lost.
You should be aware of the symptoms that are caused by two
satellite controllers having the same number. Let’s consider a new
job in which the satellite controllers have not yet been programmed
and 2 SAT 3C controllers are named number #8. When you call up
satellite controller #8 to enter data, everything will appear to be
fi ne. You will be able to enter data on the screens as if nothing is
wrong. However, when you leave a screen and then return to the
same screen, all of the data you entered will be missing. Also, if
you fi nish programming the analog inputs for example, and then
go to the analog input summary screen to review your inputs, all
of the data you have entered will be missing.
Another situation that you might encounter is adding a SAT 3C
controller to an existing system and accidentally giving it the same
number as a SAT 3C presently “on-line.” Again, when you begin
to program the new SAT 3C controller, everything will appear fi ne
until you leave a screen or if you go to a summary screen. Only
now, all of the data is usually not missing. Generally, you get parts
of your data back and parts will be missing.
If you suspect you might have two SAT 3C controllers with the
same address, number 8 for example, the best thing to do is go to
the SAT 3C controller that you know is number 8, and remove the
2-wire RS-485 communication loop from it. Then go back to the
computer and call up satellite controller #8. If the computer can
still “talk” to satellite controller #8, then there is another satellite
controller that is addressed #8 connected somewhere on the RS-
485 communication loop.
If a satellite controller was accidentally addressed #8, there will
be a satellite number missing. For example, if satellite controller
#16 was mistakenly addressed to #8, satellite controller #16 will
not be present. One way of telling which satellite controllers are
“on-line” is to go to the Satellite Summary Screen (see Section
3) and see which satellite controllers the computer recognizes as
being “on-line.”
If satellite controller #8 was accidentally misaddressed #16, there
would not be a satellite controller at address #8, and the computer
will give a “Non-Existing” message for satellite controller #8.
The other Dipswitch on the SAT 3C
Option 1, 2, and 3 Switches
For the SAT 3C, these Options switches do nothing, But on the SAT
III controller the option 1 switch selects the A-to-D converter type
that is on the mother board. With the switch turn OFF, the A-to-D
curve is selected for the Maxim MAX147 part and with the switch
turned “ON” for the TI-ADS7844 (BB marked) and the software
will use the special A-to-D curve for the TI-ADS7844 part.
BATT ON/OFF switch
This switch is used to turn the Battery (Rechargeable Super cap)
ON and OFF to the SRAM located inside of the SAT 3C.
Local Set Switch
When the LOCAL dipswitch is in the ON position, the TUC/
RTU controllers will operate according to their predefi ned user
programmed “local set” setpoints. That is, if the TUC/RTU
controllers were programmed by the user to correctly operate
when and if the WCC III - MCD is off-line or disconnected, but
the SAT 3C controller is still present and communicating with the
TUC/RTU controllers.
Local Set Disable Switch
When the LOCAL SET Disable dipswitch is in the ON position,
the TUC/RTU controllers will operate according to their
predefi ned user-programmed “On” setpoints. That is, if the TUC/
RTU controllers were programmed by the user to correctly operate
when and if the WCC III - MCD is off-line or disconnected, but
the SAT 3C controller is still present and communicating with the
TUC/RTU controllers.
Test Switch
The test mode is active only if the TEST dipswitch is in the ON
position. The word “TEST” can be input as the binary value within
the SAT 3C. Example of use would be if the user programmed
SAT 3C Addressing