Modbus Via Integrated Modem (Modbus Rtu_Tcp) - Honeywell Elster EK280 Applications Manual

EK280
Addressing mode
The Modbus addresses parameterized in the device are assigned according to logical addressing.
Depending on the retrieval software used, it may be necessary to change the addressing in the protocol to
physical addressing.
0 = Logical addressing of the Modbus registers with addresses starting with 1.
1 = Physical addressing of the Modbus registers with addresses starting with 0.
Querying the registers according to the addressing mode must take this into account as follows:
Value as per table below
301
Table 3: Modbus Addressing mode
The following connection parameters for connection 1 are set by default via parameter file (see chapter
6.6.5.2, paragraph "b)"):
Short Desc. Description
CW5.S Call acceptance window start
CW5.E Call acceptance window end
Event Connection event
EvTyp Connection event type
Iface Connection interface
SuplT Connection power supply type
TypPr Connection protocol type
Table 4: Default connection parameters

6.6.6 Modbus via integrated modem (Modbus RTU_TCP)

In the EK280 communication via the internal GPRS modem in RTU_TCP mode can be via Modbus amongst
others. Values can be read and updated and archives can be retrieved.
Modbus communication is available for both battery and external power supply operation. For both operation
types it is necessary for at least one call acceptance window to be open.
6.6.6.1 Connection
The integrated GSM and GPRS modem is described in chapter 6.1 . GSM and GPRS operation with TCP-IP
is also described here.
6.6.6.2 EK280 Parameterization
a) Send the parameter file
(see chapter 3.6 "Send parameter
b) The "integrated modem" interface, the Modbus parameters and the connection parameters for Modbus
operation via integrated modem are preset in this parameter file.
c) Customized settings can be set using enSuite.
To do this select "Navigation" on the left-hand side and then
navigation window. Under
parameters required for this application.
Application Manual
Addressing mode
MBAMd
"0" (logical)
"1" (physical)
Address
14:150
14:158
5:D70
5:D75
5:D72
5:D76
5:D77
"EK280_2v1.. - int. ECM-GW-120 - WipSoft
file", page 10).
"Parameter" > "Interfaces" > "internal modem" > "Modbus"
Queried value
(Register)
"300"
"301"
Value Contents
00:00 Start call acceptance window
23:59 End call acceptance window
2F05 Call window 5 created
0: time
1
1: period
2 Terminal interface
0: always
2 1: battery
2: ext. supply
0: Server (protocol detection)
0
4: Modbus (fix)
(Modbus-TCP)*.WPP" to the EK280
"Parameterize online" at the bottom of the
66
you will find the