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Chapter 5 Configuring the PM135
Configuring Communications
72
PM135 Powermeter Series
Figure
5-1: Communication Setup Dialog Box – Serial Ports Setup Tab
See Table 3
below for available communication options.
Table 3: COM Port Options
Parameter
Options
Default
Description
Protocol
MODBUS ASCII
SATEC ASCII
MODBUS RTU
DNP3
IEC 60870-5
PROFIBUS DP (COM2)
MODBUS
RTU
The communications
protocol for the port
Not changeable on COM2
with the PROFIBUS
module
Interface
COM1: 485 = RS-485
COM2:
232 = RS-232
485 = RS-485
422 = RS-422
Eth = Ethernet
PRO = PROFIBUS DP
GPRS = GPRS modem
RS-485
Communication interface.
Not changeable on COM2
with the Ethernet and
PROFIBUS modules
Device address SATEC ASCII: 0-99
MODBUS: 1-247
DNP3: 0-65532
PROFIBUS: 0-126
1
(126 for
PROFIBUS)
Device network address
Baud rate
300 bps-115.2 kbps
9600 bps
The port baud rate
Data format
7E, 8N, 8E
8N
Data format and parity.
7E data format should not
be used with the MODBUS
RTU and DNP3 protocols
Response delay 0-1000 ms
5 ms
The minimum time after
the last request character
is received to start the
transmission.
NOTES:
1.
The meter provides the permanent
MODBUS TCP server on port 502.