Seg WIC1 Reference Manual

8 Communication
8.1
Modbus
8.1.1
Modbus: Device Planning Parameters
Modbus . Mode [Device planning / Projected Elements]
RTU “-”, RTU
╚═▷ Mode
P.1
Modbus Protocol, general operation mode
8.1.2 Modbus: Settings
Modbus . Allow invalid addr. [Device Para / Modbus / General]
Send an exception Send an exception, Inv. addr.are allowed
╚═▷ Allow invalid addr.
P.1
Select the rule how the device shall handle the query for an invalid start address (or an address range with internal
“gaps”).
Modbus . Baud rate [Device Para / Modbus / RTU]
9600
Avail. depends on device type.
1200, 2400, 4800, 9600, 19200, 38400
╚═▷ Baud rate
P.1
Baud rate
Modbus . Physical Settings [Device Para / Modbus / RTU]
8E1
Avail. depends on device type.
8E1, 8O1, 8N1, 8N2
╚═▷ Physical Settings
P.1
Digit 1: Number of bits. Digit 2: E=even parity, O=odd parity, N=no parity. Digit 3: Number of stop bits. More
information on the parity: It is possible that the last data bit is followed by a parity bit which is used for recognition
of communication errors. The parity bit ensures that with even parity ("EVEN") always an even number of bits with
valence "1" or with odd parity ("ODD") an odd number of "1" valence bits are transmitted. But it is also possible to
transmit no parity bits (here the setting is "Parity = None"). More information on the stop-bits: The end of a data byte
is terminated by the stop-bits.
Modbus . Modbus TCP Port Number [Device Para / Modbus / TCP/IP]
502
Avail. depends on device type.
502 . . . 65535 P.1
TCP port number to be used for Modbus TCP.
In general it is recommended to keep the default value. If this is not possible then select a number out of the private
range 49152-52151 or 52164-65535 that is not yet in use within your network.
34 WIC1 WIC1-2.0-EN-REF
8 Communication
8.1 Modbus

Seg WIC1 Specifications

General

Brand	Seg
Model	WIC1
Category	Relays
Language	English