5
65-0315—02
Fig. 6. S7999D in a Building Automation System.
BUILDING AUTOMATION
SYSTEM (BAS)
CONFIGURATION
Connect the BAS Modbus wiring to COM2 of the S7999D and
ensure all S7999D devices have unique Modbus addresses
as defined in Fig. 6.
BAS Modbus message timeout should be set to 1.0 seconds
or higher. This means it could take up to 1.0 seconds (max) for
the System Display to reply to a BAS message.
Retries:
BAS must setup retries upon timeout to ensure the
Modbus request is accepted.
BAS Modbus poll rate should be set to 100 ms (milliseconds)
or slower. This means that the BAS should wait for a minimum
of 100 ms (milliseconds) after receiving a Modbus message
from Sola before sending a new Modbus message.
QUICK SETUP
1.
Make sure the S7999D 8-pin connector is properly
aligned and pressed firmly in place.
2.
Make sure the wires between the 8-pin connector and
the controller are properly wired and secured.
3.
Make sure the power supply is connected securely to
the power source.
WARNING
Electrical Shock Hazard.
Can cause severe injury, death or equipment
damage.
Line voltage is present at the 120 Vac power supply.
STARTING THE S7999D OI
DISPLAY
Power-up Validation
The Home page will appear when the device is properly
powered. Select the Setup button to adjust backlight and
sound as desired. It the screen is dim, check Pin 7 and 8
wiring connections.
A “camera” icon on the left top corner is for screen snapshot
use. Up to 16 snapshots can be stored in the display and can
be copied to a USB memory stick.
Fig. 7. S7999D Home page (Boiler 1 in normal operation).
Home page
Make sure a screen similar to Fig. 7 appears after the OI
Display has completely powered up.
M32738
UP TO 8
SOLAS
BAS
S7999D
COM 2
COM 1
S7999D
COM 2
COM 1
S7999D
COM 2
COM 1
EACH SOLA IN THE BAS WILL HAVE A DIFFERENT MODBUS ADDRESS.
COM PORTS ARE NOT RESTRICTED TO A SPECIFIC DEVICE, I.E. BAS CAN BE
CONNECTED TO EITHER COM1 OR COM2 PORTS.
1
1
SOLA
#1
SOLA
#2
SOLA
#3
SOLA
#4
SOLA
#5
2
2
