Specifications

APPLICATION NOTE
Using the SUTRON RADAR LEVEL CONTROLLER (RLR-0002-1) with a MULTI-MODEM GPRS
(Wireless Modem MTCBA-G-F4)
2
TABLE OF CONTENTS
PRODUCT OVERVIEW............................................................................................................................................3
SUTRON RADAR LEVEL RECORDER (RLR-0002-1).........................................................................................3
MULTIMODEM GPRS............................................................................................................................................3
SETUP AND OPERATION........................................................................................................................................4
STARTING THE RADAR LEVEL SENSOR .......................................................................................................................4
STARTING MULTIMODEM ..........................................................................................................................................4
Insert SIM card ....................................................................................................................................................5
Powering and connecting the modem ..................................................................................................................5
Configuring the GSM Modem..............................................................................................................................6
COMMAND LINE INTERFACE......................................................................................................................................6
GSM Modem AT commands-Command Line.......................................................................................................6
LED status............................................................................................................................................................7
Disabling Modbus mode in the radar via front panel..........................................................................................7
Changing the baud rate in the radar via front panel ...........................................................................................7
MODBUS INTERFACE...........................................................................................................................................8
GSM Modem AT commands- MODBUS..............................................................................................................8
Configuring the Radar – MODBUS.....................................................................................................................9
Configuring AutoPoll.........................................................................................................................................10
CONNECTING GSM MODEM TO THE RADAR................................................................................................13
TESTING MODEM WITH RADAR LEVEL SENSOR ........................................................................................13
COMMAND-LINE INTERFACE .......................................................................................................................13
MODBUS INTERFACE.....................................................................................................................................14
APPENDIX A : COMMAND LINE INTERFACE:...............................................................................................15
LIST OF COMMANDS.................................................................................................................................................15
APPENDIX B : CABLING.......................................................................................................................................17
RLR-0002-1 (DB9 CONNECTOR) ............................................................................................................................17
MTCBA-G-F4 (RS-232 15-PIN CONNECTOR PINOUT)...........................................................................................19