MVI56E-MCMR ♦ ControlLogix Platform
Configuring the MVI56E-MCMR Module
Modbus Communication Module with Reduced Data Block
User Manual
ProSoft Technology, Inc.
Page 83 of 223
2.4.3 Slave Configuration
Value
Description
Enabled
1
= enable port,
0
= disable port
Type
1
= Modbus Slave Port
Protocol
0
= Modbus RTU mode,
1
= Modbus ASCII mode
Baud Rate
Sets the baud rate for the port. Valid values for this field are 110, 150,
300, 600, 1200, 2400, 4800, 9600, 19200, 384 or 3840 (for 38,400
baud), 576 or 5760 (for 57,600 baud) and 115,1152, or 11520 (for
115,200 baud)
Parity
0
= None,
1
= Odd,
2
= Even
Data Bits
8
= Modbus RTU mode,
8
or
7
= Modbus ASCII mode
Stop Bits
Valid values are
1
or
2
RTS On
0
to
65535
milliseconds to delay after RTS line is asserted on the port
before data message transmission begins. This delay can be used to
allow for radio keying or modem dialing before data transmission
begins.
RTS Off
0
to
65535
milliseconds to delay after data message is complete
before RTS line is dropped on the port.
Use CTS Line
N
O
or
Y
ES
This parameter is used to enable or disable hardware handshaking.
The default setting is
N
O
hardware handshaking, CTS Line not used.
Set to
N
O
if the connected devices do not need hardware
handshaking. Set to
Y
ES
if the device(s) connected to the port require
hardware handshaking (most modern devices do not). If you set this
parameter to
Y
ES
, be sure to pay attention to the pinout and wiring
requirements to ensure that the hardware handshaking signal lines
are properly connected; otherwise communication will fail.
Float Flag
As a Slave, emulates Enron/Daniel style floats. See Floating Point
Data Handling for more information (page 84).
Float Start
Register offset in message for floating data point. See Floating Point
Data Handling for more information (page 84).
