FloBoss 107 Instruction Manual
Revised June-2017 Troubleshooting 7-13
7. Connect an ohm meter from the DO+ to the DO-.
8. When the DO is off, the ohm meter should indicate an open circuit.
9. Using ROCLINK 800, set the DO to the on state.
10. Verify that the ohm meter indicates less than 10 ohms.
11. Using ROCLINK 800, set the DO to the off state.
12. Reconnect the DO field wiring.
13. Set the DO to the state recorded in step 4.
7.4.7 Troubleshooting Pulse Inputs
Failure to exercise proper electrostatic discharge precautions, such
as wearing a grounded wrist strap may reset the processor or
damage electronic components, resulting in interrupted operations.
To verify 10 Khz operation:
1. Connect to ROCLINK 800.
2. Select Configure > I/O > PI Points.
3. Select the correct pulse input point number.
4. Connect a pulse generator having sufficient output to drive the
module to terminals + and GND. The pulse generator must synthesize
a square wave signal of 50% for every cycle.
5. Connect a frequency counter across terminals + and GND.
6. Set the pulse generator to a value equal to, or less than 10 KHz.
7. Set the frequency counter to count pulses.
8. Verify, using ROCLINK 800 software, that the count read by the
counter and the FB107 are the same.
9. Remove the test equipment, and reconnect the field device.
7.4.8 Troubleshooting RTD Inputs
The RTD input is similar in operation to an analog input and uses the
same troubleshooting and repair procedures.