User's Manual
Table Of Contents
- Table of Contents
- General Information
- Specifications
- Installation
- Location
- Dimensions: IQ Radar 300 with Rod Antenna
- Dimensions: Threaded Rod
- Dimensions: Horn
- Mounting
- Rod Assembly
- Mounting: Rod Assembly
- Mounting: Manhole Covers
- Mounting: Horn Antennas
- Mounting: Waveguide Antenna
- Mounting: Stillpipe or Sidepipe
- Mounting: Horn with Waveguide Extensions
- Mounting: Sanitary Mounting
- Mounting: Location
- Interconnection
- Start Up
- Operation(
- Application Examples
- Parameter Descriptions
- _
- _
- Quick Start Parameters (P001 to P007)
- Volume Parameters (P050 to P053)
- Display and Reading Parameters (P060 to P063)
- Fail-Safe Parameters (P070 to P072)
- mA Parameters (P200 to P219)
- Independent mA Setpoints Parameters (P210 and P211)
- Profile Record Parameters (P330 to P337)
- Auto Record ON and OFF Setpoint Parameters (P334 to P337)
- Installation Records Parameter
- Range Calibration Parameters
- Rate Parameters
- Measurement Verification Parameters
- Communication Parameters
- Echo Processing Parameters
- Algorithm Parameters
- TVT Adjustment Parameters
- P837 Auto Near TVT
- Test Parameters
- _
- Communications: Modbus Register Map
- Communications: Data Types
- Error Handling
- Troubleshooting
- Maintenance(
- Appendix I
- Appendix II
- Appendix III
- Appendix IV
- Appendix V
PL-611 IQ Radar 300 Page 89
Communications
Communications
Communications
Communications
Troubleshooting
Communication Troubleshooting
Generally
1. Check the following:
• There is power at the unit
• The LCD shows the relevant data
• The device can be programmed using the hand programmer
2. Check the wiring pin outs and verify that the connection is correct.
3. Verify that values in set-up parameters P770 to P773 match the settings in the computer
communicating with the unit.
4. Check that the port you are using on the computer is correct. Sometimes trying a
different Modbus driver will solve the problem. An easy stand-alone driver called
ModScan32 is available from Win-Tech at www.win-tech.com. We have found that this
driver is useful to test communications.
Specifically
1. You try to set an IQ 300 parameter via remote communications, but the parameter
remains unchanged.
• Some parameters can only be changed when the device is not scanning. Try
putting the device in program mode using the operating mode function.
• Try setting the parameter from the keypad. If it can not be set using the keypad,
check the lock parameter and set it to 1954.
• The communications control parameter P799 must be set to 1 to be able to write
parameter to the IQ 300.