Rockwell Automation 1758-RTU202 DataSite Software User Manual FRN 1.2 - Manual (Page 117)

Publication 1758-UM002D-EN-P - October 2010
DataSite Flow Configuration Utility (DS FloConfig) 117
2. In the Communication Password box, enter the password you have
previously set.
3. Click Download.
The new settings are applied to the DataSite controller.
The following sections provide more information on some of the parameters
for the serial port.
Master/Slave State
The serial port scan block (see the Configuration Example on page 50 can be
configured in the master state to acquire data from the slave serial
communication equipment connected in a certain time interval. In the slave
state, the 1758 controller can receive commands from superior communication
equipment, generate and return response message.
Timeout
In the master state, timeout is the maximum length of waiting time after a
command is sent. No new commands are sent while waiting for a response.
If no response is received after timeout, an error message box will be displayed
to inform user. User will then be prompted to send a new command.
Timeout is not applicable in other states.
Delay Time
In the master state, delay time is the length of time that must be waited for the
next sending after one sending/receiving is completed. The time settings can
prevent communication error due to slower response of the lower
communication equipment connected.
In the slave state, delay time is the time that must be waited for the response to
be returned after a command is received. The time settings can prevent
communication error due to slower response of the upper communication
equipment.
TIP
When there are no protocol settings, the master state is
invalid.