General protocol settings – Comtrol Modbus TCP User Guide User Manual
Page 37
DeviceMaster UP Modbus/TCP User Guide: 2000447 Rev. I
Chapter 3. Embedded Configuration Pages- 37
General Protocol Settings
3.3.3. General Protocol Settings
Use the General Protocol Settings area of the Edit
Serial Configuration page to configure general
protocol settings for the serial port.
Rx Timeout
Between
Packets
Specifies the following information, once the start of a packet is received:
•
How long the DeviceMaster UP should wait (in milliseconds) before timing-out,
if the ETX Rx Detect length is one byte or two bytes and the ETX byte(s) are not
received.
•
The time to wait in milliseconds between serial packets if the ETX Rx Detect
length is set to none.
General Protocol Settings
Serial Port Protocol
This is the serial port protocol.
•
If you select Raw-Data, the port receives raw/ASCII type data.
•
If you select Modbus/RTU-to-Slaves, the serial port operates in Modbus/
RTU slave(s) mode.
•
If you select Modbus/ASCII-to-Slaves, the serial port operates in to
Modbus/ASCII slave(s) mode.
•
If you select Modbus/RTU-to-Master, the serial port operates in to
Modbus/RTU master mode.
•
If you select Modbus/ASCII-to-Master, the serial port operates in to
Modbus/ASCII master mode.
See
4.3. Display All Modbus Slave Devices
about the Display Devices option.
Discard Rx Pkts
With Errors
This check box is selected by default, which means the DeviceMaster UP
discards serial packets with errors.
Clear the check box when you need to receive a serial packet with errors to
troubleshoot an issue.
Serial Configuration