9.1.3 COM4
Connections to COM 4 are made through a RJ-45 connector. The wiring and pin connections for this
connector are described in section 9.2-RJ-45 Modular Connector for RS-232 below.
The following table shows the serial and protocol communication parameters supported by COM1.
These parameters are set from TelePACE, ISaGRAF Workbench or from an application program
running in the controller. Default values are set when a Cold Boot or Service Boot is performed on
the controller.
Parameter Supported Values
Baud Rate
300, 600, 1200, 2400, 4800, 9600, 19200, 38400,
57600 and 115200.
Default: 9600
Duplex
Full or Half
Default: Full
Parity
Odd, None or Even
Default: None
Data Bits
7 or 8 Bits
Default: 8 Bits
Stop Bits
1 or 2 Bits
Default: 1 Bit
Receive Flow Control
ModbusRTU or None
Default: ModbusRTU
Transmit Flow Control
Ignore CTS or None
Default: None
Station
1 to 65534
Default: 1
Protocol
None, Modbus RTU or Modbus ASCII
Default: Modbus RTU
Addressing Mode
Standard or Extended
Default: Standard
9.2 RJ-45 Modular Connector for RS-232
The serial communication ports on the 5232 controller board are labeled COM1, COM2 and COM4.
These are RS-232 serial ports using a 8-pin female RJ-45 connectors configured as Data Terminal
Equipment (DTE). The recommended specification for RS-232 cable length is a maximum of 50 feet
or 15.2 meters. Shielded cable must be used and the shield should be connected to chassis ground at
one end.
The following diagram shows the pin connections for the RS-232 (RJ-45) port connector for COM1,
COM2 and COM4.
SCADAPack 32 Controller Hardware Manual
May 24, 2006
26
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