RammaR
Member
Hello. We've been using ProFace 4000 & 5000 series HMI's for a year or so now and have a new application we're stuck on. The issue is communicating with a device over a 2-wire RS485 serial connection.
When we try to send the sensor an inquiry string, we get nothing back. We know the sensor is functional because it responds to commands from a laptop via the OEM's software. But the sensor doesn't have any indicator lights or other way of telling if it is receiving the command.
Step 1 is to make sure we're sending the text string out of the ProFace HMI/PLC properly over the serial port. Ex: >001202V;F5 <cr>
Does anyone have any experience with configuring the serial port or writing the "script" to communicate over the RS485 port?
Never done this before and trying to learn. Thanks in advance.
When we try to send the sensor an inquiry string, we get nothing back. We know the sensor is functional because it responds to commands from a laptop via the OEM's software. But the sensor doesn't have any indicator lights or other way of telling if it is receiving the command.
Step 1 is to make sure we're sending the text string out of the ProFace HMI/PLC properly over the serial port. Ex: >001202V;F5 <cr>
Does anyone have any experience with configuring the serial port or writing the "script" to communicate over the RS485 port?
Never done this before and trying to learn. Thanks in advance.