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PF2100

Modbus Card Instruction Manual v1.1

Jan 5, 2012

Page 21

Appendix D – Troubleshooting

If you are having trouble with your Modbus Card, please consult the following resources in this order:

1. Consult the following list of common problems to see if one matches yours.

2. Consult the support section of our website at

http://www.profireenergy.com.

3. Contact us on our support line at 1-855-PRO-FIRE (776-3473).

Menu 6 Does Not Exist on my PF2100

The firmware version is too old and does not support expansion cards.

• Verify that the firmware version in your PF2100 is old using the procedure on page 3.

• Install the card in a different system with the correct firmware version.

• Contact Profire to arrange for a firmware update.

The “Run” LED is Not Blinking

The Modbus Card is not getting power from the Terminal Card or is damaged.

• Double check that the Modbus Card is installed properly on the Terminal

Card and that no pins are bent or damaged.

• Using a multimeter, probe pins 4 and 6 on header P1 as illustrated in

Figure 14 to verify that 3.5V is present.

• Contact Profire to arrange for a hardware repair or replacement.

The “RX” LED Does Not Light When the Master Sends a Command

The Modbus Card is not enabled, the wiring is incorrect, the baud rate is incorrect,

or the card is damaged.

• Double check that the Modbus Card is enabled in the menu 6.8.

• Double check the wiring of the card and the master device

• Double check the baud rate settings for the card and the master device

• Contact Profire to arrange for a hardware repair or replacement.

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