Stop bits, Rts on, Rts off – ProSoft Technology 5201-DFNT-DNPS User Manual
Page 17: Min response delay, Use cts line, Modem
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ProLinx DNPS ♦ ProLinx Gateway
User Manual
DNP 3.0 Slave
ProSoft Technology, Inc.
Page 17 of 86
December 1, 2009
Stop Bits
1 or 2
Stop bits signal the end of a character in the data stream. For most applications,
use one stop bit. For slower devices that require more time to re-synchronize,
use two stop bits.
All devices communicating through this port must use the same number of stop
bits.
RTS On
0 to 65535 milliseconds
This parameter sets the number of milliseconds to delay after Ready To Send
(RTS) is asserted before data will be transmitted.
RTS Off
0 to 65535 milliseconds
This parameter sets the number of milliseconds to delay after the last byte of
data is sent before the RTS modem signal will be set low.
Min Response Delay
0 to 65535 milliseconds
Minimum time between receiving a request and transmitting a response. Allows
master time to disable transmitter on an RS-485 network.
Use CTS Line
Y
ES
or N
O
This parameter specifies if the Clear To Send (CTS) modem control line is to be
used or not. If the parameter is set to N
O
, the CTS line will not be monitored. If
the parameter is set to Y
ES
, the CTS line will be monitored and must be high
before the gateway will send data. Normally, this parameter is required when
half-duplex modems are used for communication (2-wire). This procedure is
commonly referred to as hardware handshaking.
Modem
Yes or No
This parameter defines if a dial-up modem is used on the DNP slave port. If the
value is set to No, no modem is used. If the parameter is set to Yes, a modem is
used.