Robustel GoRugged R3000 Lite - Page 49

Robustel GoRugged R3000 Lite User Guide
RT_UG_R3000 Lite_v.1.4.1 15.11.2016 48 / 135
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Modbus Over Rlink
RTU protocol.
Modbus ASCⅡ slave: router connects to slave device which works under
Modbus ASCⅡprotocol.
Display all com @
AT Over COM
Enable to display all virtual com of the module inside the router. Generally,
router will occupy /dev/ttyUSB0 and /dev/ttyUSB2 for dialing up to GPRS.
Note: Enable this function will disable Cellular WAN function.
Disable
COM Name
Show the virtual com name of the module inside.
/dev/ttyU
SB1
 When Select Protocol “Transparent”:
 When Select Protocol “Modbus Master”:
When you select protocol “Modbus Master”, you can configure the “Modbus Master” in section 3.32.