Operating instructions

Modifying the Configuration File PTQ-MCM ♦ Quantum / Unity Platform
Modbus Communication Module
ProSoft Technology, Inc. Page 67 of 139
April 29, 2008
Baud Rate
Baud Rate : 4800 #Baud rate for port (300, 600, 1200, 2400, 4800,
#9600, 19200, 38400, 57600, 115(for 115200))
This is the baud rate to be used on the port. Enter the baud rate as a value. For
example, to select 19K baud, enter 19200. Valid entries are 110, 150, 300, 600,
1200, 2400, 4800, 9600, 19200, 28800, 38400, 576, and 115.
Parity
Parity : None #N=None,O=Odd,E=Even
This is the parity code to be used for the port. Values are None, Odd, Even.
Data Bits
Data Bits : 8 #7 or 8 data bits for messages
This parameter sets the number of data bits for each word used by the protocol.
Valid entries for this field are 7 or 8.
Stop Bits
Stop Bits : 1 #1 or 2 stop bits for messages
This parameter sets the number of stop bits to be used with each data value
sent. Valid entries are 1 and 2.
RTS On
RTS On : 0 #Delay after RTS set before message sent (mSec)
This parameter sets the number of milliseconds to delay after RTS is asserted
before the data will be transmitted. Valid values are in the range of 0 to 10000
milliseconds.
RTS Off
RTS Off : 0 #Delay after message before RTS dropped (mSec)
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. Valid values are in the
range of 0 to 10000 milliseconds.
Minimum Response Delay
Minimum Response Delay : 0 #Number of mSec to delay before response
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. Valid values are in the
range of 0 to 10000 milliseconds. When the port is configured for Modbus Slave
operation, increase this parameter to allow the slave to send the message
response to the port for the master.