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Dejvid_no1
Dejvid_no1
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Mixed upYour sensor has some different modes of communicating:

  1. Modbus, a software protocol that can be run on the electrical standard RS485. Making manual Modbus frames on the terminal seem improbable.
  2. NMEA, combined software and electrical protocol/standard. Can be run on RS485 and others. Could probably be done on the terminal but it also requires some protocol frame building.
  3. SDI-12, combined software protocol and electrical specification. 5V logic levels. SDI-12 should be fairly easy to use with the terminal but you would need a SDI-12 to RS232 converter.
  4. Analog current/voltage. Directly measurable by an ADC or voltmeter.

You have to decide which one to use. I would test 4-wire, first to see that the unit is in last editworking order. But this looks wrongAttach supply to pin7 & 8. One 1k resistor from pin 2 or 4 to ground. Measure the voltage over the resistor and see if i changes with whatever parameter was set in the factory:

White (Supply Voltage - ) to 10 and they"The analog measurement outputs are configured at the together to + of 24V DC Brownfactory based on customer specification" (Supply Voltage +) to 9 and they//From the together to - of 24V DCmanual

Haven't you mixed up these two? Looks like you are driving it in revesere. You might have fried it...

Not sure about the Analog Ground. You might not need it.

Mixed up 4-wire in last edit. But this looks wrong:

White (Supply Voltage - ) to 10 and they the together to + of 24V DC Brown (Supply Voltage +) to 9 and they the together to - of 24V DC

Haven't you mixed up these two? Looks like you are driving it in revesere. You might have fried it...

Not sure about the Analog Ground. You might not need it.

Your sensor has some different modes of communicating:

  1. Modbus, a software protocol that can be run on the electrical standard RS485. Making manual Modbus frames on the terminal seem improbable.
  2. NMEA, combined software and electrical protocol/standard. Can be run on RS485 and others. Could probably be done on the terminal but it also requires some protocol frame building.
  3. SDI-12, combined software protocol and electrical specification. 5V logic levels. SDI-12 should be fairly easy to use with the terminal but you would need a SDI-12 to RS232 converter.
  4. Analog current/voltage. Directly measurable by an ADC or voltmeter.

You have to decide which one to use. I would test 4, first to see that the unit is in working order. Attach supply to pin7 & 8. One 1k resistor from pin 2 or 4 to ground. Measure the voltage over the resistor and see if i changes with whatever parameter was set in the factory:

"The analog measurement outputs are configured at the factory based on customer specification" //From the manual

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Dejvid_no1
Dejvid_no1
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Unless I'm totally daft, the right hand side of the connection should be modified as:

Pink (RXD-) to 5 TX-

Should be 7 RX-

Yellow (TXD-) to 7 RX-

Should be 5 TX-

Grey (RXD+) to 4 TX+

Should be 6 RX+

Green (TXD+) to 6 RX+

Should beMixed up 4 TX+-wire in last edit. But this looks wrong:

White (Supply Voltage - ) to 10 and they the together to + of 24V DC Brown (Supply Voltage +) to 9 and they the together to - of 24V DC

Haven't you mixed up these two? Looks like you are driving it in revesere. You might have fried it...

Not sure about the Analog Ground. You might not need it.

Unless I'm totally daft, the right hand side of the connection should be modified as:

Pink (RXD-) to 5 TX-

Should be 7 RX-

Yellow (TXD-) to 7 RX-

Should be 5 TX-

Grey (RXD+) to 4 TX+

Should be 6 RX+

Green (TXD+) to 6 RX+

Should be 4 TX+

White (Supply Voltage - ) to 10 and they the together to + of 24V DC Brown (Supply Voltage +) to 9 and they the together to - of 24V DC

Haven't you mixed up these two? Looks like you are driving it in revesere. You might have fried it...

Not sure about the Analog Ground. You might not need it.

Mixed up 4-wire in last edit. But this looks wrong:

White (Supply Voltage - ) to 10 and they the together to + of 24V DC Brown (Supply Voltage +) to 9 and they the together to - of 24V DC

Haven't you mixed up these two? Looks like you are driving it in revesere. You might have fried it...

Not sure about the Analog Ground. You might not need it.

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Dejvid_no1
Dejvid_no1
  • 3.6k
  • 18
  • 25

Unless I'm totally daft, the right hand side of the connection should be modified as:

Pink (RXD-) to 5 TX-

Should be 7 RX-

Yellow (TXD-) to 7 RX-

Should be 5 TX-

Grey (RXD+) to 4 TX+

Should be 6 RX+

Green (TXD+) to 6 RX+

Should be 4 TX+

White (Supply Voltage - ) to 10 and they the together to + of 24V DC Brown (Supply Voltage +) to 9 and they the together to - of 24V DC

Haven't you mixed up these two? Looks like you are driving it in revesere. You might have fried it...

Not sure about the Analog Ground. You might not need it.