Rs-232/Modem Communications Module - Samson TROVIS 5573 Mounting And Operating Instructions

9.1

RS-232/modem communications module

When looking onto the controller front, the connection for the optional communications module
is located on the left side in the controller housing (RJ-45 jack). A dial-up modem can be con-
nected to the controller over the RS-232/modem communications module.
A dial-up modem is required in case the controller is to be connected to the telecommunications
network. In this case, the controller works autonomously and can issue an alarm call to the
building control station when errors occur. Additionally, the building control station can dial up
to the controller, read data from it, and send new data once the valid key number has been writ-
ten to holding register no. 40145.
Note: If a wrong key number has been written to holding register no. 40145 for the third con-
secutive time, the controller immediately interrupts the modem connection and generates an
"Err 7" error message (Unauthorized access occurred). As a result, the call to the configured
control system is triggered and a text message is sent. Bit D6 is deleted as soon as the error sta-
tus register has been read by the control system and the connection has been terminated.
In special cases, the Lock dial-up function can be selected to stop dial-up in case an error oc-
curs. Using the Dial-up also upon corrected error function, the controller additionally informs
the building control station when a previously signaled error no longer persists.
Thanks to the Automatic modem configuration function, the dial-up modem connected to the
controller does not need to be preset; it is configured automatically by the controller.
Functions
Modbus
Modbus 16-bit addressing
Modem function
Automatic modem configuration
Lock dial-up
Dial-up also upon corrected error
Control system monitoring
Parameters*
Station address (ST)
Modem dialing pause (P)
Modem time-out (T)
No. of redialing attempts (C)
WE Configuration
1 CO6 -> F01 - 1
0 CO6 -> F02
0 CO6 -> F03 - 1
0 CO6 -> F04 - 1
0 CO6 -> F05
0 CO6 -> F06
0 CO6 -> F07 - 0
WE Parameter level / Range of values
255 PA6 / 1 to 247 with CO6 -> F02 - 1: 1 to 32000
5 min PA6 / 0 to 255 min
5 min PA6 / 1 to 255 min
5 PA6 / 1 to 255
Communication
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EB 5573 EN