Satec Expertmeter EM720 Operation Manual page 61

Chapter 5 Configuring the EM720
Display
Label
Protocol
Interface
Address
Baud Rate
Data/Parity
Send Delay
Chr.Timeout
EM720 Power Quality and Revenue Meter
The following table lists available port options.
Parameter Options
Communication Modbus RTU,
protocol
Modbus ASCII,
DNP3,
IEC 62056-21
Port interface RS232, RS485,
IR, GPRS
Device address Modbus: 1-247
DNP3: 0-65532
IEC 62056-21:
0-65532
Baud rate COM1: 300-
19200 kbps,
COM2-3: 300-
115.2 kbps
Data format 7E, 8N, 8E
and parity
Response delay 0-1000 ms
Character 0-1000 ms
timeout
The meter
communication modules and does not allow you to change
the baud rate and data format for the Dial-up GSM/GPRS
modem.
Configuring Communications
Default
IEC 62056-21 The communications
(COM1) protocol for the port
Modbus RTU
(COM 3)
IR (COM1) Not changeable;
automatically detected by
GPRS (COM2)
the meter
RS485 (COM3)
1 Device network address
19.2 kbps The port baud rate
8N 7E data format should not
be used with the Modbus
RTU and DNP3 protocols
5 ms The minimum time after the
last request character is
received to start the
transmission.
4 ms The maximum time the line
is allowed to idle before
closing a connection in the
Modbus RTU and DNP3
protocols
automatically detects
Description
replaceable
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