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Volume Conversion Device EK260
Elster GmbH 75
DF.S2 Data format, Interface 2
Here the number of data bits, parity bit usage and number of stop bits are set for
the data interchange between the EK260 and a device (e.g. a m odem) connected
to the interface terminals.
For this there are three possible settings:
- "0" = 7e1 = 7 data bits, even parity, 1 stop bit
- "1" = 7o1 = 7 data bits, odd parity, 1 stop bit
- "2" = 8n1 = 8 data bits, no parity, 1 stop bit
"0" (7e1) is the basic setting which is described in the applicable IEC 62056-21
interface standard.
Bd.S2 Baud rate, Interface 2
Here, the initial baud rate (speed) for the data transmi ssion between the EK260
and a device connected to the interface terminals can be set.
Possible settings: 300, 600, 1200, 2400, 4800, 9600, 19200
With the application of the baud rate selection the baud rate is generally set
according to (DIN) EN 61107 to "300". It is then only used briefly for initiating the
data interchange. The actual baud rate for transferring the useful data is
automatically increased to 19200 Bd.
With a modem connected (i.e. when Md.S2 is set to "2" or "3") no automatic baud
rate selection occurs. Bd.S2 should then be set to "19200".
TypS2 Type, Interface 2
The interface type can be set here:
"1" = RS-232 (e.g. for connecting a commercially available modem)
"2" = RS-485 (e.g. for connecting an "FE260" function expansion)
In the setting "2" (RS-485) two separate wires must be connected each for
transmitted and received data (four-wire connection
→
5.5.5).
Modb Modbus parameters
Here the submenu for the Modbus parameters is called with < ENTER> (
→
3.12.3,
page 82).
Num.T Number of ringing tones before answering
With some settings for Md.S2 (see above) you can specify here how many ringing
tones the EK260 allows before it accepts the call ("before a nswering").
The entry of values in the range from 1 to 12 is accepted. D epending on the type
of modem, the function is only guaranteed with additional restrictions. (Refer to the
operating instructions for the connected modem and to Chaps. 5.5 and 5.5.5.)
When using a GSM modem, Num.T must be set to 1 ringing tone.
M.INI Initialise modem
With this command you can initialise a connected modem when you, for example,
are connecting an unparameterised modem or when the modem has lost its
settings.
In particular when connecting a new modem, it must be ensured that a s uitable
initialisation string is available under the address "2:721" of the EK260. This can
then be loaded using the "WinPADS" parameterisation software.
(Connection of a modem:
→
5.5)