18 Network Communications
18.1 Introduction
The RS-232, RS-485, Ethernet and the optical communications can be used for networking.
Warning: The calibration counter is incremented when the calibration related settings are changed. This means
that calibration via a serial port cannot be carried out without affecting the certification of a trade installation.
Serial communications parameters like BAUD, PARITY, etc for the RS232 or RS485 serial ports are setup in
the HDWARE menu. The optical communications port is fixed to operate at 9600 baud, no parity, 8 data bits
and 1 stop bit. The optical communications cable must be used.
18.2 Network rinCMD
The rinCMD network protocol, formally known as Protocol B, uses ASCII characters with a single master
POLL / RESPONSE message structure. All information and services are provided by registers each of which
has its own register address.
18.2.1 Basic Message Format
The basic message format is as follows:
ADDR CMD REG :DATA ←-
ADDR is a two character hexadecimal field corresponding with the following:
ADDR Field Name Description
80
H
Response ‘0’ for messages sent from the master (POLL).
‘1’ for messages received from an instrument (RESPONSE).
40
H
Error Set to indicate that the data in this message is an error code and not a
normal response.
20
H
Reply Required Set by the master to indicate that a reply to this message is required by any
slave that it is addressed to. If not set, the slave should silently perform the
command.
00
H
..1F
H
Indicator Address Valid instrument addresses are 01
H
to 1F
H
(1..31).
00
H
is the broadcast address. All slaves must process broadcast commands.
When replying to broadcasts, slaves reply with their own address in this
field.
CMD is a two character hexadecimal field:
72 C500-600-2.0.3
To Next Page
Loading...
Need help?
General
