Weidmuller GPRS Alarm Unit - Manual (Page 18)

Description of Functions
3-16
3.2.4 Serial interface
The serial interface serves for communication with the monitored plant
or for communication of the plant with the connected devices via the
IE-GPRS-I/O.
The parameterisation and any firmware updating for the IE-GPRS-I/O
are performed via the serial interface.
The communication via the serial interface requires a fully
connected 1 : 1 cable. Regarding the information required to
configure the serial interface, please refer to Section 4.11 COM.
3.2.5 Operating modes of the serial interface
1 2 3 4
Status
LED
DIP switches "Options" on the front panel
OFF OFF OFF OFF
OFF Operation as a signalling and GSM/GPRS system
ON
OFF OFF OFF
Flashin
g red
Configuration locally; Connection from the serial
interface to the PC via a modem cable (1 : 1)
ON
OFF OFF OFF
Lights
green
Diagnosis at the serial interface using a terminal
program
ON ON
OFF OFF
All settings are reset to their defaults when the
operating voltage is connected.
ON
OFF OFF OFF
Firmware update
To switch the operating mode, the IE-GPRS-I/O must be turned off;
after switching the DIP switch, it can be turned back on.
NOTE
NOTE