ProSoft Technology MVI56E-MCM/MCMXT - Manual (Page 146)

Reference MVI56E-MCM ♦ ControlLogix Platform
User Manual Modbus Communication Module
Page 146 of 199 ProSoft Technology, Inc.
June 18, 2014
Register Content Description
10,020 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.
10,021 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.
10,022 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.
10,023 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).
10,024 Slave ID This parameter defines the virtual Modbus Slave
address for the internal database. All requests
received by the port with this address are
processed by the module. Verify that each device
has a unique address on a network. Valid range for
this parameter is 1 to 255 (247 on some networks).
10,025 Bit in Offset This parameter specifies the offset address in the
internal Modbus database for network requests for
Modbus Function 2 commands. For example, if the
value is set to 150, an address request of 0 will
return the value at register 150 in the database.
10,026 Word in Offset This parameter specifies the offset address in the
internal Modbus database for network request for
Modbus function 4 commands. For example, if the
value is set to 150, an address request of 0 will
return the value at register 150 in the database.
10,027 Out in Offset This parameter specifies the offset address in the
internal Modbus database for network requests for
Modbus function 1, 5, or 15 commands. For
example, if the value is set to 100, an address
request of 0 will correspond to register 100 in the
database.
10,028 Holding Reg Offset This parameter specifies the offset address in the
internal Modbus database for network requests for
Modbus function 3, 6, or 16 commands. For
example, if a value of 50 is entered, a request for
address 0 will correspond to the register 50 in the
database.
10,029 Command Count This parameter specifies the number of commands
to be processed by the Modbus Master Port.