Other Devices With Rs232 Interface (No Modem); Sending Short Messages By Sms; Standard Output Data Records For Process Data ("Three-Minute Values") - Elster EK220 Operating Instructions And Installation Information

4.5.4 Other devices with RS232 interface (no modem)

a) EK220 battery powered
F
Connection see Chap. 5.7.4, page 100.
The following settings must be made under the interface list ( ® 3.13):
- Md.S2 = 1
- Bd.S2 = 300
b) EK220 with erternal power supply
F
Connection see Chap. 5.7.5, page 100.
The following settings must be made under the interface list ( ® 3.13):
- Md.S2 = 5
- Bd.S2 = 19200 19200 Bd - without the use of baud rate selection

4.5.5 Sending short messages by SMS.

F It is not possible to send short messages with an FE230 .
If a modem (except FE230) is connected to Interface 2, the n with definable events the
EK220 can send a brief message by a short message (Short Message Service in the GSM
mobile radio network). To do this, a large number of settings are needed which cannot be
made by means of the keypad on the device, but instead with the aid of the "WinPADS"
parameterisation software.
The settings which can be made include the event which triggers the message, one or two
recipients and any eight volume corrector values as the message content.
With SEND (® page 77) you can send the defined message also with the keypad.

4.5.6 Standard output data records for process data ("three-minute values")

Process data can be synchronously temporarily stored in short cycles (e.g. 3 minutes) and
interrogated over the interface. To output these data records the mode "Data readout"" in
"Mode C" according to IEC 62056-21
In order to obtain practicable values, buffer storage of the process data has to be act i-
vated. In this respect
- the value "21" is written to the address "13:0157.0" via the interface and
- the operating cycle OCyc (® 54) is set to an integer divisor of 3 minutes.
Through these measures the battery service life of the EK220 is slightly reduced. The ex-
pected remaining service life is displayed under Bat.R (® page 56).
1
The set baud rate is only used briefly for initiating the data interchange. The actual baud
rate for transmitting the useful data is increased automatically within the framework of the
protocol e.g. to 19200 Bd.
2
IEC 62056-21: formerly IEC 1107 or EN 61107
© Elster GmbH
No modem control by the EK220; with RS232 control line;
baud rate selection possible
300 Bd - with the use of baud rate selection (procedure as for t he
1
optical interface)
No modem control by the EK220; without RS232 control lines;
without baud rate selection
2
is used.
Volume Conversion Device EK220
89