Honeywell S7999B Manual De Usuario

7

65-0303—05

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.

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.

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.

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.

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

COM 2

COM 1

COM 2

COM 1

COM 2

COM 1

EACH SOLA IN THE BAS WILL HAVE A DIFFERENT MODBUS ADDRESS.

1

1

1

2

3

4

5