Communications Module - Samson TROVIS 5573 Mounting And Operating Instructions

Communication
Parameters*
Phone no. of control station (TELnr) –
* –> section 9.3 (Description of communication parameter settings)
9.2 RS-485 communications module
When looking onto the controller front, the connection for the optional communication module
is located on the left side in the controller housing (RJ-45 jack). A constant bus connection is re-
quired (data cable) to operate the controller together with the RS-485 communcation module.
The bus line links the control units/devices in an open ring. At the end of the bus line, the data
cable is connected to the control station using a RS-485/RS-232 converter (e.g. CoRe01, refer
to Data Sheet T 5409 EN).
The maximum range of the bus connection (cable length) is 1,200 meters. A maximum of
126 devices can be connected to such a segment. For greater distances or when more than 126
devices are to be connected to a line, repeaters (e.g. CoRe01) must be used to regenerate the
level. A maximum of 246 devices with 8-bit addressing can be connected to a bus.
If no communication is established between the control system and controller, the time of any
access by the control system to dynamic process can be restricted by the Control system moni-
toring function.
The controller resets the monitoring function, provided the valid Modbus requests are regis-
tered. However, in case of an error, all level bits are initialized back to "autonomous" after 30
minutes have elapsed.
NOTICE
You are required to follow the relevant standards and regulations concerning lightning and
surge protection on installation.
Functions
Modbus
Modbus16-bit addressing
Modem function
Control system monitoring
Parameters*
Station address (ST.-NR)
* –> section 9.3 (Description of communication parameter settings)
84
EB 5573 EN
WE Parameter level / Range of values
PA6 / Max. 22 characters; 1, 2, 3, ...9, 0;
"-" end of a string, "P" pause
WE Configuration
1 CO6 -> F01 - 1
0 CO6 -> F02
0 CO6 -> F03 - 0
0 CO6 -> F07
WE Parameter level / Range of values
255 PA6 / 1 to 247 with CO6 -> F02 - 1: 1 to 32000