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Ethernet Port E1/E2 Status Communications
Revision 9 900 Control Station User Guide 27
May 2014
Ethernet Port E1/E2 Status
The Ethernet Port E1 and Ethernet Port E2 screens both show the following details for each Ethernet port
on the controller.
Table 10 Ethernet Port E1/E2 details
Item Description
Port Diagnostic Shows condition of Ethernet port. See Table 11 for status details.
Controller Name Configured controller name
Network Name The network name to which the controller belongs.
Local Alias A locally referenced alias for the controller.
Mac Address The controller’s Media Access Control address.
IP Address The controller’s Internet Protocol address.
Subnet Mask The controller’s subnet mask address.
Gateway IP Address The Internet Protocol address for the controller’s gateway device.
Double Register Format Each IEEE 32-bit floating point number requires two consecutive registers (four bytes,
MSB=4, LSB=1 in byte order below) starting with the register defined as the starting
register for the information. The stuffing order of the bytes into the two registers differs
among Modbus hosts. To provide compatibility, the Double register format is
configurable. Selections are:
FPB
Floating Point Big Endian Format Byte order – 4, 3, 2, 1 (Default)
FP BB
Floating Point Big Endian with byte-swapped Byte order – 3, 4, 1, 2
FP L
Floating Point Little Endian Format Byte order – 1, 2, 3, 4
FP LB
Floating Point Little Endian with byte-swapped Byte order – 2, 1, 4, 3