Specifications

APPLICATION NOTE
Using the SUTRON RADAR LEVEL CONTROLLER (RLR-0002-1) with a MULTI-MODEM GPRS
(Wireless Modem MTCBA-G-F4)
9
+CR:0 +CRC:0 +CMEE:0 +CBST:0,0,1
+SPEAKER:0 +ECHO:0,1 &C:1 &D:2 %C:0
+IPR:9600 +ICF:3,4 +IFC:0,0.
2.4.2
2.4.3 Configuring the Radar – MODBUS
The radar (RLR-0002-1) can be configured from the front panel. The following configuration is
necessary to use MODBUS interface over GSM modem.
2.4.3.1 Enabling MODBUS
Press the down arrow to Station Setup then press the right arrow. Press the down arrow
to Modbus Settings then press the right arrow. Clicking the Set button select Enable.
2.4.3.2 Set Modbus Device ID
Press the down arrow to Station Setup then press the right arrow. Press the down arrow
to Modbus Settings then press the right arrow. Press down arrow to Modbus Device ID.
Clicking the Set button select the ID number (This ID number must be the same that will
select in Autopoll configuration)
2.4.3.3 Set Modbus Protocol
Press the down arrow to Station Setup then press the right arrow. Press the down arrow
to Modbus Settings then press the right arrow. Press down arrow to Modbus Protocol.
Clicking the Set button select RTU
2.4.3.4 Set Modbus Parity
Press the down arrow to Station Setup then press the right arrow. Press the down arrow
to Modbus Settings then press the right arrow. Press down arrow to Modbus Parity.
Clicking the Set button select None
2.4.3.5 Set Delay Before Tx
Press the down arrow to Station Setup then press the right arrow. Press the down arrow
to Modbus Settings then press the right arrow. Press down arrow to Delay Before Tx.
Clicking the Set button select 10 ms
2.4.3.6 Set Delay After Tx
Press the down arrow to Station Setup then press the right arrow. Press the down arrow
to Modbus Settings then press the right arrow. Press down arrow to Delay After Tx.
Clicking the Set button select 10 ms
2.4.3.7 Set Modbus BaudRate