Elster 83 462 140, Operating Manual And Installation Instructions, Page: 60 / 126

Volume Conversion Device EK260
60 Elster GmbH
Md.I2 Mode for input 2
The application of Input 2 (I2) can be defined here.
0: Switched off (input is not used).
1: Counting input.
2: Status input.
When the input is used as a counting input, the EK260 can, for example, be
parameterised such that it carries out a pulse comparison of Inputs 1 and 2 and
signals impermissibly large deviations.
With the setting "status input" the EK260 can, for example, signal attempts at
tampering on a pulse transmitter of the gas meter, provided the meter also
supports this.
After setting
Md.I2 the function on Input 2 is more specifically defined with MdMI2
(see below).
V2 Adjustable volume counter on Input 2
With the setting Md.I2 = "1" (see below) V2 is the gas volume measured on Input
2. V2 is not directly included in the computation of the actual or volume at base
conditions. However, with appropriate setting of MdMI2 (see below), it can be
compared with V1 (see above) in order to signal impermissibly large deviations.
St.I2 Status on Input 2
If Md.I2 = "2" (see above), the status of Input 2 is displayed h ere:
St.I2 = 0: Input signal is inactive (no signalling).
St.I2 = 1: Input signal is active (signalling).
MdMI2 Mode for monitoring I2
SC.I2 Source for monitoring I2
L1.I2
Limit 1 I2
L1.I2 Limit 2 I2
SpI2 Status pointer for monitoring I2
F
For MdMI2 only enter one of the values described here: "2", "3", "5" or "17".
Depending on the system and after entering <ENTER>, other values are
offered which are however not meaningfully applicable h ere.
Depending on the application of Input 2 as counting or status input (see above :
Md.I2 ), the following functions can be realised by setting these values:
If Input 2 is a counting input, the function "pulse comparison" can be set.
If Input 2 is a status input, the functions "active warning input", "inactive war ning
input", "active reporting input", "inactive reporting input" and "time -synchronous
input" can be set.
"Warning input" signifies that the status message "I2 Warn.sig." (
→
page 47) is
affected directly by the input status.
"Report input" signifies that the status message "I2 Rep.sig." (
→
page 48) is
affected directly by the input status.
"Active": A signal arises when the input terminals are short-circuited (switch to
switching point "on",
→
B-4).
"Inactive": A signal arises when the input terminals are parted (switch to switc hing
point "off",
→
B-4).
Programming takes place according to the following table. (For further details on
entering a source for
SC.I2 : See Chap.2.3.2).