GPRS Troubleshooting

GPRS Troubleshooting In GPRS remote connection, you must verify the following things right after installation (before leaving the site): The scanner is updated with the latest firmware version. The modem recognizes the SIM card (modem Green led should be constant on), see [SIM Card] picture. The SIM card supports GPRS data, the APN, no PIN code, and includes a data package to access the GPRS data (check with the cellular provider).

GPRS Troubleshooting The power supply is connected to Rosemount 3DLinkPro. It should be 24Vdc with limitation above 1.5A, and a common ground with the scanners and the RS-485. There is a polling address 0 on the Daisy Chain. Check the RS-485 wiring (polarity, terminals, 2 resistors on both ends of the chain with no resistor in the middle, wires are twisted shield) between the Rosemount 3DLevelScanner and Rosemount 3DLinkPro .

GPRS Troubleshooting Check the existence of 120 Ohm resistors on the ends of the RS-485 bus and in the Rosemount 3DLinkPro. Check the connection parameters in the Rosemount 3DVision (phone number, external IP, APN, SMS server IP and port).

Signal Troubleshooting Verify the Rosemount 3DLinkPro is mounted outdoor. Verify the Rosemount 3DLinkPro is not cover by a metal box or in a shelter. Verify the Antenna is not broken. Verify the Antenna is well connected to the SMA connector.

Signal Troubleshooting Check if there is a reception for GPRS signal is good (Between -51dBm to -90dBm) by running the Modem Wizard and verifying the “GSM Signal” field:

SIM card Troubleshooting Verify the SIM card is well insert and locked into SIM socket:

SIM card Troubleshooting Check if there is a reception for GPRS signal is good (Between -51dBm to -90dBm) by running the Modem Wizard and verifying the “GSM Signal” field:

HW Troubleshooting Verify data cable is well connected between the ADAM and the modem:

HW Troubleshooting Verify there is 1K ohm resistor between RS485 Data (-) to ground:

HW Troubleshooting Verify all terminal cables are well connected:

SW Troubleshooting MSCOMM32.OCX: If the Modern Wizard pop-up the following comment then you should follow the instruction below: Place the MSCOMM32.OCX file in the "C:\Windows\System32" folder. If the library is not included with your software it can be found attached to this post. Start Windows Explorer (right click the Start button and select Explorer). Go to the "C:\Windows\System32" folder Right click the cmd.exe application and select "Run as Administrator" At the command prompt enter "regsvr32 mscomm32.ocx"

More details For more details see Startup & Troubleshooting 5708 document

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