Table of Contents
Advertisement
Basic Communication
Parameters
Parameter Number
Parameter
DH 485 Parameters
DH 485 Node Address
DH 485 Baud Rate
Diagnostic Command
Execution
For normal operation, the basic communication parameters must be
configured. For special communication needs, configure the advanced
communication parameters, which permit more flexibility in tuning the
operation of the module.
Important: The KF3 is shipped from the factory with the DH-485 Node
Address set to 00. If there is to be more than one KF3 on the network,
or if a station with this address already exists, you will have to change
this parameter setting. The default settings for the other parameters are
intended to cover most situations, and need only be changed if they do not
meet your requirements.
The basic communication parameters are divided into two groups: those
that control the link with the DH-485 network, and those that control the
RS-232C link with the computer. The parameter number is shown in the
left display, the current setting in the two right displays.
Table 3.B describes each basic communication parameter and its valid
settings. The numbers in parentheses are the factory default values as they
appear in the display.
Table 3.B
Basic Configuration Parameters
Description
The address of this node on the DH 485 network. Valid station addresses
are 00 31. Every station on the DH 485 network must be given a unique
station address. If the KF3 detects another station with the same address,
the front panel Fault LED will flash. You should then change this station's
address to an unused one.
For optimum network performance, set your stations to consecutive
addresses, starting at 0. For example, if you have 4 stations, their
addresses should be 0, 1, 2, and 3. This minimizes the solicitation of the
new stations that is required.
Sets the baud rate (the speed in bits/second at which data is transferred)
of the DH 485 link. Possible rates are 300 (03), 1200 (12), 2400 (24),
4800 (48), 9600 (96), 19200 (19).
Important: All stations on DH 485 must be set to the same baud rate.
Determines whether diagnostic commands are executed directly by the
KF3 (01) or whether they are passed through to the host computer (00).
Chapter 3
Configuring the KF3
Factory Default
(00).
9600 baud (96).
They are executed by
the KF3 (01).
3 5
Advertisement
Table of Contents
