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MA-005 - MINITRANS Installation Manual - Rev 3.1
29-Sep-15
Page 34 of 85
11
COMMUNICATIONS
The product has various communication options available:
A USB slave connection allows serial communications with an external computer.
This connection is located on the left-hand side of the Input board (see Appendix I).
An Ethernet connection using the MODBUS/TCP protocol. This connection is located
on the bottom left-hand side of the input board (see Appendix I).
Up to two further communications channels are available. However, if a DNP3
module is fitted (one maximum) this limits the available communication channels to
one.
The product supports simultaneous communication on several channels – up to three
masters over Ethernet, and one master on each of the serial connections (including the
USB connection) as listed in Table 11—1.
Table 11—1: Product communications channels
Channel
Carrier
Protocol
MODBUS/
RTU
MODBUS/
TCP
MODBUS/
ASCII
DNP3.0
IEC61850
USB
USB
-
-
-
-
Chan
ne
l A*
RS-232 Isolated
-
RS-485 2-wire
-
RS-485 4-wire
-
PSTN
-
-
-
-
GSM/GPRS
-
-
-
-
CDMA
-
-
-
-
Chan
ne
l B
RS-232 Isolated
-
RS-485 2-wire
-
RS-485 4-wire
-
PSTN
-
-
-
-
GSM/GPRS
-
-
-
-
CDMA
-
-
-
-
Ethernet
Ethernet
-
-
-
-
DNP3
Ethernet
-
-
-
-
*Note: Channel A is disabled when DNP3 over Ethernet is selected.
The options listed above are available at the time of printing – other options may become
available. (Contact the GE Customer Service Centre for further information.)