Attaching To Other Ccn Modules Service Operation - Carrier 19XRV Start-Up, Operation And Maintenance Instructions Manual

ATTACHING T OOTHER CCN MODULES - - If thechill-
erICVC has been c onnected toaCCN Network orother P IC
controlled chillel.s through CCN wiring, the ICVC can beused
tovieworchange ptuameters ontheother c ontrollers. Other
PICIII chillers c anbeviewed a ndsetpoints c hanged (if the
other u nitis in CCN control), if desired, fromthisparticular
ICVC module.
If themodule n umber is notvalid, t he"COMMUNICA-
TIONFAILURE" m essage will show anda newad&ess
number must beentered orthe wiring checked. If filemodule is
communicating properly, the"UPLOAD IN PROGRESS"
message will flash and filenew module can now beviewed.
Whenever there isa question regarding which module o n
theICVCis cunently b eing shown, check t hedevice n ame
descriptor ontheupper l efthand corner of theICVC screen.
See Fig. 2 5.
When the CCN device h as been viewed, theATI'ACH TO
NETWORK DEVICE table should beused t oattach tothe PIC
that i s onthe chillel: M ove totheATFACH T ONETWORK
DEVICE table (LOCAL should b ehighlighted) andpress the
softkey t oupload t heLOCAL device. TheICVC
forthe19XRV w illbeuploaded and default screen willdisplay.
NOTE: The ICVC will notautomatically reattach tothelocal
module onthe chillel: P ress the _ soflkey toattach t o
the LOCAL device a nd view the chiller o peration.
NAME DESCRIPTOR TABLE NAME
ALWAYS THE ![ /
ICVC MODULE(" l_x_ j_ ,vrrAc'H-_o_v_c_ "X I
ON THE 19XRV-_ r_l_cR1r,_ON _US A_r_R_SS | _,_H_mc-aJ
I _ tll_llllllllllll_ 0 _ _---.----,_ ............
OTH E R CCN _ DEvices i 0 _ / LOCATION
k._ _ _ OFCCN
MODULES / o_,_a o /
|
....... _/MODULE
NVICE 8
o o
I_VlCE _ 0 0
Fig. 25 -- Example of Attach to Network
Device Screen
Service Operation
-- An overview of the tables and
screens available for the SERVICE function is shown in
Fig. 18.
TO ACCESS THE SERVICE SCREENS -- When the SER-
VICE screens are accessed, a password must be entered.
1. From the main MENU screen, press the [SERVICE]
soflkey. The soflkeys now correspond to the numerals 1,
2,3,4.
2. Press the four digits of the password, one at a time. An as-
terisk (*) appetus as each digit is entered
ENTER A 4 DIGIT PASSWORD:*
NOTE: The initial factory-set password is 1-1-1-1. If the
password is incorrect, an error message is displayed
INVALID PASSWORD
If fl_is occurs, return to Step 1 and try to access the
SERVICE screens again. If the password is correct, the
softkey labels change to:
NEXT PREVIOUS SELECT EXIT
F--I F--I
NOTE: The SERVICE screen password can be changed
by entering the ICVC CONFIGURATION screen under
SERVICE menu. The password is located at the bottom
of the menu.
The [CVC screen displays the following list of available
SERVICE screens:
• Alarm History
• Alert History
• Control Test
• Control Algorithm Status
• Equipment Configuration
• VFD Config Data
• Equipment Service
• Time and Date
• Attach to Network Device
• Log Out of Device
• ICVC Configuration
See Fig. 18 for additional screens and tables available from
the SERVICE screens listed above. Use the _ softkey to
return to the main MENU screen.
NOTE: To prevent unauthorized pe_.sons D_m accessing the
ICVC service screens, the ICVC automatically signs off and
password-protects itself if a key has not been pressed for
15 minutes. The sequence is as follows. Filleen minutes after
the last key is pressed, the default screen displays, the ICVC
screen light goes out (analogous to a screen saver), and the
ICVC logs out of the password-protected SERVICE menu.
Other screen and menus, such as the STATUS screen can be
accessed without the password by pressing the appropriate
softkey.
TO LOG OUT OF NETWORK DEVICE -- To access this
screen and log out of a network device, from the default ICVC
screen, press the _ and [SERVICE] softkeys. Enter the
password and, flom the SERVICE menu, highlight LOG OUT
OF NETWORK DEVICE and press the _ softkey.
The ICVC default screen will now be displayed.
TIME BROADCAST ENABLE -- The first displayed line,
"Time Broadcast Enable", in the SERVICE/EQUIPMENT
CONFIGURATION/BRODEF screen, is used to designate the
loc_d chiller as the sole time broadcaster on a CCN network
(there may only be one). If there is no CCN network present
and/or there is no designated time broadcaster on the netwoN,
current time and date, Daylight Saving Time (DST), and holi-
days as configured in the local chiller's control will be applied.
If a network is present and one time broadcaster on the network
has been enabled, current time and date, DST. and holi&ty
schedules as configured in the controls of the designated time
broadcaster will be applied to all CCN devices (including chill-
ers) on the network.
48