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Start troubleshooting – Bell & Gossett S13654B Technologic 5500 Series Pump Controller User Manual

Page 14

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14

No

No

No

Correct the Wire

Connections.

Correct the MAC address.

The polling device must set the

device instance number = 100 on

the slave unit.

Check MAC address setting.

Ensure the polling device

knows that device instance

number is set to 100 for the

Technologic 5500 control

panel.

Yes

Yes

Yes

Yes

Yes

BACnet drivers are working

Is B&G Write Counts Active?

(Are write values non-zero and

constanly changing?)

Is B&G Read Counts Active?

(Are read values non-zero and

constanly changing?)

View the “COMMUNICATION” test screen

Is Devise Instance Number set to 100?

(B&G selceted identifiying number)

Is MAC address setting correct?

Range 1-255

Is RS485 Connection Correct?

Data <-> +; N_data <-> -

Start Troubleshooting

BACnet MSTP TROUBLESHOOTING FLOW CHART

Contact Building Control

Manufacturer for the correct

BACnet MS/TP slave unit

requirements

No

Is

B&G Read Count

Active?

Cycle the control

Panel's Power

No

No

Yes