Contrec 515 FA01, Руководство по эксплуатации

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Instrument Calibration
515 FA01 - 29 August 2021 47
Communications
The instrument has the following communication ports:
•
COM-1 RS-232 Port - A 9-pin female connector on the rear panel of the
instrument.
•
COM-2 RS-485 or Ethernet Port (optional) - Terminals or socket on
the rear panel. Ethernet connection requires COM-2 setting to be: RTU
(Modbus), 19200 Baud rate, even parity and 1 stop bit.
•
COM-3 Port - A special communications port that is only applicable to
some applications.
 
UNITS PARAMS INPUTS OUTPUTS ALARMS
COMMS
TM/LOG SETUP TEST END
PROTOC COM-
n
The Communications Protocols can be assigned to the communication
ports as follows (a protocol cannot be assigned to more than one port at
a time):
•
ASCII - Simple ASCII
•
RTU - Modbus RTU
•
PRN - Printer Protocol
•
NONE - If a port is not being used, set the protocol to NONE.
Printer Protocol (PRN) is only available if the option with Real Time
Clock is installed.
For the selected port, press or to select the desired protocol.
BAUD COM-
n
The Baud setting is the speed of the communication port in data bits per
second.
The baud rate of the instrument must match the baud rate of the
communication device that the instrument is connected to.
Use or to select 2400, 4800, 9600 or 19200 baud.
PARITY COM-
n
The Parity bit helps to detect data corruption that might occur during
transmission.
The parity bit setting of the instrument must match the parity bit setting
of the communication device that the instrument is connected to.
Press or to select EVEN, ODD, or NONE.
S-BITS COM-
n
The Stop bit indicates the end of a transmission. Stop bits can be 1 or 2
bit periods in length. The stop bit setting of the instrument must match
the stop bit setting of the communication device that the instrument is
connected to.
Press or to select 1 or 2 stop bits.
SET