Function Expansion Unit FE260
20
Elster-Instromet
GmbH
4.3 Modem
When using an integral or connected modem, the interface of the volume corrector must
be parameterised as follows (all values can be found in the menu “Ser.IO” on the volume
corrector):
AD
Address Designation Setting Meaning Rem.
Md.S2
2:0705 Mode
3 or 5
*1)
DF.S2
2:0707 Data format
0
7 data bits, even parity,
1 stop bit ("7e1")
Bd.S2
2:0708 Initial baud rate
19200 or 9600 baud
*2)
TypS2
2:070A Type of interface
2
RS-485
*3)
Num.T
2:0720 Ringing tones before call
acceptance
*4)
CW1.S 5:0150 Call Time Window 1 Start
*5)
CW1.E 5:0158 Call Time Window 1 End
CW2.S 6:0150 Call Time Window 2 Start
CW2.E 6:0158 Call Time Window 2 End
1:01FB
Activation
with
external
power supply
1 Remains
continuously
active
*6)
2:0709 "Identification baud rate"
19200 or 9600 baud
*2), *6)
*1) When using a modem without automatic call acceptance (standard case), Md.S2 = “3”
must be set and MD.S2 = “5” for modems with automatic call acceptance (e.g. with an
FE260 with the option "Local interfaces" or "CL interface").
*2) 19200 Bd is standard. With longer lengths of cable between the FE260 and the volume
corrector (refer to Chapter 0, page 12) and when using the option "Local interfaces" or
"CL interface", the baud rate may be set to a maximum of 9600 Bd.
When using an FE260, the starting baud rate "Bd.S2" and the "Identification baud rate"
(address 2:0709) must always be set to the same value.
*3) The setting of the type of interface is only needed with those types of volume corrector
where “TypS2” is present in the display (e.g. EK260).
*4) The adjustable number of ringing tones (rings) before call acceptance depends on the
modem used. With a GSM modem it should be set to "1" and with other modems to a
value between "2" and "9".
With a modem with automatic call acceptance, “Num.T” has no significance.
*5) Volume correctors in the LIS-200 range, such as the EK260, offer at least two time
windows within which calls can be accepted for data interrogation. Outside of these
time windows calls are ignored, so that, for example, a person located in the station
can be called via a telephone connected to the same telephone line.
*6) The values with the addresses 1:01FB and 2:0709 are not always available in the
volume corrector display. They can be changed, for example, via the optical interface
using the parameterisation software "WinPADS". The standard setting is “1:01FB = 1”
and "2:0709 = 19200".
