Comtrol DeviceMaster EtherNet/IP-Modbus EIP-MOD User Manual page 49

Serial Port Configuration Page
The following tables provide information about serial configuration settings.
Serial Configuration
Port Name (Default =
blank)
Port Mode (Default =
RS-232)
Baud Rate (Default =
38400)
Parity
(Default = None)
Data Bits (Default =
8)
Stop Bits (Default =
1)
Flow Control (Default
= None)
Terminating Resistor
(Only displays on
applicable models)
DTR Mode (Default =
Off)
DeviceMaster EIP-MOD User Guide: 2000664 Rev. A
Serial Configuration Page
User-definable string used to describe the serial interface. Valid characters include
a-z, A-Z, 0-9, underscores, spaces and dashes. All other characters are discarded.
The Port Name supports up to an 80 character ASCII string.
All panel or rack mount models:
• RS-232 (default)
• RS-485
• RS-422
All DIN rail models:
• RS-232 (default)
• RS-422
• RS-485_2-wire
• RS-485_4-wire_Master
• RS-485_4-wire_Slave
300, 600, 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200, and 230400
None
Even
Odd
5, 6, 7, 8
1 or 2
RTS/CTS
XON/XOFF
Half Duplex
To ensure the best signal integrity on a long distance high-speed RS-422 or RS-485
network, sometimes it is required to place a 120Ω termination resistor between
each of the transmit differential pair or receive differential pair. Signal reflection
is reduced and a reliable communication is ensured by placing the 120Ω
termination resistor. Using the software, you can place 120Ω termination resistors
between the signals shown below:
• RS-422 Mode
- Between TxD+ and TxD- (Pin 5 and 7)
- Between RxD+ and RxD- (Pin 4 and 2)
• RS-485 - Between TxD/RxD+ and TxD/RxD- (Pin 5 and 7)
0=Off
1=On
Chapter 4. Serial Menus- 49