EB 5573 EN
101
Communication
10
Communication
Using the optional RS-485 communication module (Modbus RTU interface for two-wire bus
networks), the TROVIS 5573 Heating Controller can communicate with a control system. In
combination with a suitable software for process visualization and communication, a com-
plete control system can be implemented.
The operating software can be updated
over a data cable, provided Modbus has
been activated (CO6
>
F01
-
1).
RS-232
RS-485
RS-232C
TROVIS 5578
RS-485
1
1
GLT
1 Optional RS-485 communication module
10.1
RS-485 communication module
When looking onto the controller front, the connection for the optional communication mod-
ule (icon, order no. 8812-2002) is located on the left side of the controller housing (RJ-45
connector socket). 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 con-
verter (e.g. CoRe02, see Data Sheet u T 5409).
The maximum range of the bus connection (cable length) is 1200 meters. For greater distanc-
es, repeaters (e.g. CoRe02) must be used to regenerate 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 ac-
cess 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.
Note
Summary of Contents for TROVIS 5573
Page 144: ...144 EB 5573 EN Key number 1732...
