ProSoft Technology MVI56E-MCM/MCMXT - Manual (Page 148)

Reference MVI56E-MCM ♦ ControlLogix Platform
User Manual Modbus Communication Module
Page 148 of 199 ProSoft Technology, Inc.
June 18, 2014
Register Content Description
10,042 Float Flag This flag specifies if the floating-point data access
functionality is to be implemented. If the float flag is
set to 1, Modbus functions 3, 6, and 16 will
interpret floating-point values for registers as
specified by the two following parameters.
10,043 Float Start This parameter defines the first register of floating-
point data. All requests with register values greater
than or equal to this value will be considered
floating-point data requests. This parameter is only
used if the Float Flag is enabled.
10,044 Float Offset This parameter defines the start register for
floating-point data in the internal database. This
parameter is only used if the Float Flag is enabled.
10,045 Protocol This parameter specifies the Modbus protocol to be
used on the port. Valid protocols are: 0 = Modbus
RTU and 1 = Modbus ASCII.
10,046 Baud Rate 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,
384 (for 38400 bps), 576 (for 57600 bps), and 115
(for 115,200 bps).
10,047 Parity This is the parity code to be used for the port.
Values are None, Odd, Even.
10,048 Data Bits This parameter sets the number of data bits for
each word used by the protocol. Valid entries for
this field are 5 through 8.
10,049 Stop Bits This parameter sets the number of stop bits for
each data value sent. Valid entries are 1 and 2.
10,050 RTS On 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
65535 milliseconds.
10,051 RTS Off 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 65535.
10,052 Minimum Response
Time This parameter specifies the minimum number of
milliseconds to delay before responding to a
request message. This pre-send delay is applied
before the RTS on time. This may be required
when communicating with slow devices.
10,053 Use CTS Line This parameter specifies if the CTS modem control
line is to be used. If the parameter is set to 0, the
CTS line will not be monitored. If the parameter is
set to 1, the CTS line will be monitored and must
be high before the module will send data. This
parameter is normally only required when half-
duplex modems are used for communication (2-
wire).