Contrec 515, Operation Manual

Page: 51 / 92

Instrument Calibration
515 HC04 - 8 June 2007 43
Communications
The instrument has three communication ports:
•
RS-232 Port - A 9-pin female connector on the rear panel of the
instrument.
•
Infra-red Port - Located on the front panel, below the status indicators.
•
RS-485 Port - (Advanced option only) Terminals on the rear panel.
↓ →
UNITS PARAMS INPUTS OUTPUTS ALARMS
COMMS
TM/LOG SETUP TEST END
PROTOC RS232
RS485
INFRA
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 available for all ports
•
RTU - Modbus RTU available for all ports
•
PRN - Printer Protocol available for RS232 and RS485
•
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 RS232
RS485
INFRA
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 RS232
RS485
INFRA
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 RS232
RS485
INFRA
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