Sutron Corporation 8310 & 7310 Users Manual 8800-1125Rev. 2.7 (BETA) 4/16/2014 pg. 127
DeviceID 1
BaudRate 19200
Parity None
Protocol RTU
RTSPreDataMS 10
RTSPostDataMS 0
WaitForDSR No
WaitForCTS No
RS485 No
End MODBUS Menu
Slave
When Yes, the com port is used for Modbus slave operations. This means the 8310 listens for
incoming master communications (register reads, writes, etc.), and processes them when
received. When No, the com port is used Modbus master operations, like those initiated by the
MBOut measurement type and the MBSensor input type.
DeviceID
This property is visible only when Slave is Yes. The property identifies the slave address of the
8310 on a MODBUS serial bus. The 8310 will process all messages it receives that contain this
address in the device id field of the message (as well as “broadcast” messages, i.e., device id 0).
This device id applies only to this particular modbus slave, not to the Xpert as a whole, allowing
different slaves to have different device ids.
BaudRate
This property identifies the baud rate to use for MODBUS communications over the selected
comm port.
Parity
The parity property identifies the parity setting of the comm port. The possible selections are
even, odd, and none.
Protocol
This identifies the message format and framing protocol to be used during serial
communications. The possible selections are either RTU or ASCII. The default is RTU.
RTSPreDataMS
This property identifies the number of milliseconds to wait after asserting RTS before starting
data transmission. The default is 0ms.
RTSPostDataMS
This property identifies the number of milliseconds to wait after data transmission is complete
before de-asserting RTS. The default is 0ms.
WaitForDSR
This property specifies whether the DSR (data-set-ready) signal is monitored for output flow
control. If this box is checked and the DSR input control line is low, output is suspended until
DSR is high again.
WaitForCTS
This property specifies whether the CTS (clear-to-send) signal is monitored for output flow
control. If this box is checked and the CTS input control line is low, output is suspended until CTS
is high again.
RS485
This property specifies whether the comm port should be configured for RS485. On the 8310,
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