semaphore TBOX LT2-530 Series, User Manual, Page: 187 / 197

Version : 1.09 187
Address : Address of the RTU you are
physically connected (the ‘Master’)
Timeout : Rx timeout used to communicate
with the Remote device
Route from : incoming communication port
(the port of the ‘Master’ TWinSoft is
connected to)
to : outgoing communication port (the
port of the ‘Master’ connected to the remote
device)
Sequence to access a Remote
TB
OX
in rerouting:
1. Open in TWinSoft the document corresponding to the “Master” (
TB
OX
LT2
)
2. Fill in the Routing request menu as explained above.
3. Open in TWinSoft the document corresponding to the “Remote” RTU (if you were using modem
communication, you will have to redial the “Master”).
You are in communication with the Remote TB
OX
.
This sequence is only possible when Master and Remote are of the same model of RTU. If not,
you have to pre-configure the Analog system variable (see next chapter)
Analog System variable ‘Rerout’
An analog system variable ‘Rerout’ can also be used in your Ladder/BASIC logic to force a rerouting.
This 16 bits variable represents 16 communication ports, with the lsb corresponding to COM1.
Example: A rerouting between COM4(…001000) and COM2 (…000010) corresponds
to the decimal value =10 (…001010)
Rerouting is only possible with local communication ports configured in ModBus
Sending a program using Rerouting
For instance, you can send a program by dialing a “Master”, and accessing “Slaves” on RS485 network.
Doing a ‘local’ rerouting, for instance from a RS232 port to a RS485, we recommend to use the
same Baudrate all ports.
If you have ‘ModBus Transactions’ running between ‘Master’ and ‘Slave’, we recommend
stopping them during rerouting, to avoid communication errors.