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S7999B, S7999C SOLA LOCAL OPERATOR INTERFACE
7 65-0303—05
Fig. 5. S7999B in a Building Automation System.
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 1.0 seconds. This
means that the BAS should wait for a minimum of 1.0 seconds
after receiving a Modbus message from Sola before sending a
new Modbus message.
QUICK SETUP (S7999B OI
DISPLAY)
1. Make sure the S7999B 9-pin connector is properly
aligned and pressed firmly in place.
2. Make sure the wires between the 9-pin connector and
the controller are properly wired and secure.
WARNING
Electrical Shock Hazard.
Can cause severe injury, death or equipment
damage.
Line voltage is present at the 120 Vac power supply.
3. Make sure the power supply is connected securely to the
120 Vac power source.
STARTING THE S7999B OI
DISPLAY
Power-up Validation
The Home page will appear and the “Power” LED will be
blinking when the device is properly powered. Select the 1234
Setup button to adjust the contrast and sound as desired.
If the screen is dim, check the pin 1 and 2 wiring connections.
NOTE: An Advanced Startup screen displays for five seconds
after power-up before the Home page displays. This
screen allows the user to upgrade the software in the
System Display (see “Preface” on page 2) and should
normally be bypassed.
Three LEDs exist for I/O traffic: one for the Ethernet network
port and two for Modbus™ ports. The ethernet port should only
be used if instructed by Honeywell that an update is necessary.
Modbus Com Port 2 is not active on this device.
1. Make sure the Power and COM1 LEDs are blinking.
2. If the LEDs are not blinking:
a. Make sure the proper connections have been made
between the Modbus COM1 Port and the first control-
ler device in the Modbus network.
b. See “Wiring (S7999B OI Display)” on page 4 for
proper wiring of the OI Display 9-pin Header
Connections.
3. If connected to a BAS application, COM2 LED will blink
indicating BAS traffic.
Home Page (S7999B OI Display)
Make sure a screen similar to Fig. 6 appears after the OI
Display has completely powered up.
On System applications, each SOLA Control is represented on
the Home page by an icon and name. Pressing the icon allows
the user to zoom in on that boiler and see its specific details.
These details are provided on a new page, which can include
additional buttons that display additional detail and operation
information, which itself leads to other pages. The pages are
traversed in a tree structure method, as shown in Fig. 8.
The Sola icons will appear in one of four colors indicating the
boiler status.
• Blue: Normal operation
• Red: Lockout condition
• Gray: Standby mode (burner switch off)
M32006
UP TO 8
SOLAS
BAS
S7999B
COM 2
COM 1
S7999B
COM 2
COM 1
S7999B
COM 2
COM 1
EACH SOLA IN THE BAS WILL HAVE A DIFFERENT MODBUS ADDRESS.
1
1
SOLA
1
SOLA
2
SOLA
3
SOLA
4
SOLA
5