We purchased 6 snaplinks (SL485K-001) and are using FTDI USB-RS485-WE-1800-BT adapters connected to a Windows embedded computer.
We have successfully paired two sets and are able to communicate with a MODBUS unit.
The other two units pair but but we are seeing a NULL byte (1st byte) followed by the expected bytes, which results in a communication failure.
We purchased 4 additional snaplink units and all four are experiencing the same problem.
We have swapped out USB-485 adapters, tried different combinations of pairing, network ID, Channel, Buffering Timeout, Buffering Threshold, and Inter-Character Timeout.
We have used EasySet to factory default the devices, and also attempted to load the SNAPpy Image SNAP_Link-RF100-2.4.9.spy.
Curiously only one of the four currently being tested will even display the two spy files when selecting File>>Upload from the EasySet menu. The other three just display a blank list.
Downloaded the Portal software and connected to each unit. All show Firmware version: 2.4.19 (Out of Date).
At this point I am at a loss as to how two sets work just fine, but the other 3 sets do not.
Any guidance at this point would be greatly appreciated.
Thanks,
Brad
We have successfully paired two sets and are able to communicate with a MODBUS unit.
The other two units pair but but we are seeing a NULL byte (1st byte) followed by the expected bytes, which results in a communication failure.
We purchased 4 additional snaplink units and all four are experiencing the same problem.
We have swapped out USB-485 adapters, tried different combinations of pairing, network ID, Channel, Buffering Timeout, Buffering Threshold, and Inter-Character Timeout.
We have used EasySet to factory default the devices, and also attempted to load the SNAPpy Image SNAP_Link-RF100-2.4.9.spy.
Curiously only one of the four currently being tested will even display the two spy files when selecting File>>Upload from the EasySet menu. The other three just display a blank list.
Downloaded the Portal software and connected to each unit. All show Firmware version: 2.4.19 (Out of Date).
At this point I am at a loss as to how two sets work just fine, but the other 3 sets do not.
Any guidance at this point would be greatly appreciated.
Thanks,
Brad
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