ProSoft Technology MVI69-MCM - Manual (Page 56)

Configuring the MVI69-MCM Module MVI69-MCM ♦ CompactLogix or MicroLogix Platform
User Manual Modbus Communication Module
Page 56 of 167 ProSoft Technology, Inc.
March 22, 2011
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.
Minimum Response Delay
0 to 65535
This parameter is used only when the port is configured as a slave. It sets the
number of milliseconds to wait before responding to a command received on the
port from a remote Master. This delay is sometimes required to accommodate
slower Master devices.
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 module 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.
Slave Address
1 to 255
This parameter defines the Slave Node 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.
Bit Input Offset
0 to 4999
This parameter specifies the offset address into 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.
Word Input Offset
0 to 4999
This parameter specifies the offset address into the internal Modbus database for
network requests 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.