Function Expansion Unit FE260
Elster-Instromet GmbH
23
4.4 Local interfaces (optical interface and RS-232)
The local interface board, included on request, has two connections:
•
an "optical" interface (accessible externally) and
•
an "RS-232 interface" (a DSUB-9 plug fitted in the housing).
The board is integrated into the housing cover. The optical interface is accessible
externally; to use the RS-232 the housing must be opened.
Of the total of three interfaces of the FE260 for data transmission (modem, optical
interface and RS-232) only one can be used at any point in time, not simultaneously with
any other.
With the FE260 with the option "Local interfaces" the following special features should be
noted:
•
The volume corrector and the modem integrated into the FE260 must be
parameterised such that the modem accepts calls automatically. (No call acceptance
by the volume corrector, setting Md.S2 = 5).
•
When using an FE260 with optical interface, operation occurs with a baud rate of
9600 Bd. On the volume corrector, apart from the displayed baud rate "Bd.S2", the so-
called "Identification baud rate" (address 2:709) must also be set to 9600 Bd. To do
this, send an appropriate file to the volume corrector using a PC or laptop and the
parameterising progam "WinPADS".
1
The following operating modes can be set with the switches S1 and S2 on the local
interface board:
Switch
S1 S2
Operating mode
normal
normal
Reading out and parameterising the volume corrector
Test normal
Test
mode
normal
Modem par. Parameterisation of the mode integrated into the FE260
Test
Modem par. No defined function
1
With the FE260 with integral analogue modem and the EK260 with software version 2.41,
e.g. the file "EK260_2v4.. - FE260-OPTO & int. Analog-Modem, 9600Bd_*.WPP".