EB 5573-1 EN 115
Communication
Functions WE Conguration
Dial-up also upon corrected error 0 CO6 > F06
Monitoring 0 CO6 > F07 - 0
Parameters* WE Parameters: value range
Modbus station address (8 bit) 255 PA6 > P01: 1 to 247
With CO6 > F02 - 1: 1 to 32000
Modem dialing pause (P) 5min PA6 > P04: 0 to 255min
Modem timeout (T) 5min PA6 > P05: 1 to 255min
Number of redialing attempts (C) 15 PA6 > P06: 1 to 255
Phone number of control station (TEL-
nr)
– PA6 > P08: Max. 22 characters; 1, 2, 3, …, 9, 0;
- for end of a string; P for pause
* See section10.3
10.2 RS-485 communication module
When looking onto the controller front, the connection for the optional communication mod-
ule is located on the left side of the controller housing (RJ-45 connector socket). A permanent
bus connection (data cable) is required to operate the controller in combination with the RS-
485 communication module (8812-2002). 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
an RS-485/RS-232 converter (e.g. CoRe01, refer to Data Sheet T5409).
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 regener-
ate the signal 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
access by the control system can be restricted to dynamic process by the monitoring 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
Upon installation, observe the relevant standards and regulations governing lightning
and overvoltage protection.
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