ProSoft Technology PTQ-101M - Manual (Page 142)

PTQ-101M ♦ Quantum Platform Reference
IEC 60870-5-101 Master Communication Module
Page 142 of 181 ProSoft Technology, Inc.
May 14, 2008
This module works as an IEC-60870-5-101 Master. It can receive monitor data,
and control (sends commands to slaves) and receive events from slaves, as
explained in the following topics.
7.3.1 General Parameter Configuration
Communication Parameters
The following parameters should be configured for serial communication:
Baud Rate : 9600 #Baud rate for port 110 to 38400
Parity : 2 #0=None, 1=Odd, 2=Even
RTS On : 0 #0 to 65536 mSec before message
RTS Off : 0 #0 to 65536 mSec after message
Minimum Delay : 20 #Minimum # of mSec before response sent
Receive Timeout : 2000 #Maximum mSec from first char to last to wait
Hardware Handshaking: 0 #Hardware handshaking 0=None, 1=RTS/CTS, 2=DTR/DSR,
#3=modem
Each one of these parameters should be adjusted for each specific application.
Data Link Configuration
The protocol specification document IEC 60870-5-2 specifies an unambiguous
address (number) for each link. Each address may be unique within a specific
system, or may be unique within a group of links sharing a common channel. The
protocol specification defines that the Data Link Address may have 0, 1 or 2
octets. The first option should be used only during Balanced Mode.
Configure the following parameter to set the number of octets to be used for the
Data Link Address value. It is essential that the slave unit also uses the same
number of octets configured for the PTQ-101M.
Data link address length : 2 #0, 1, or 2 octets used for DL address
You must also configure the actual Data Link Address value using the following
parameter:
Data link address : 1 #Range depends on the configured DL
#Length
This value identifies the module's address in the network.