Signal And Pulse Outputs; Optical Serial Interface; Electrical Serial Interface (Internal) - Elster EK260 Operating Manual And Installation Instructions

Volume Conversion Device EK260
B-5 Signal and pulse outputs
Four transistor outputs with common ground (minus pole).
In the "Pulse output" mode (Md.A... = 1, à 3.11) the quantity pulses determined for a
measurement cycle are output as pulse packets and are therefore not suitable for open or
closed loop control purposes. A frequency proportional to flow can only be output on the
output DA2 after setting Md.O2 = 8. (à 3.11)
Each output can be parameterised and sealed separately.
Designation
Nominal data:
F
For data which is not mentioned here, the limits in the certificate of conformance must
be observed when using the EK260 in Ex Zone 1.
Maximum switching voltage
Maximum switching current
Maximum voltage drop
Maximum residual current
a) Application as LF pulse or time-synchronous output (Md.A... = 1 or 3):
Pulse duration
Space duration
Output frequency
b) Application as HF output (only Output 2 "DA2", Md.O2 = 8):
Output frequency
B-6 Optical serial interface
Optical interface according to (DIN) IEC 62056-21; bit-serial, asynchronous data
transmission according to ISO 1177, half duplex.
Support of Data transmission mode "C" (= Data read-out, programming and
manufacturer-specific applications with automatic change of the baud rate).
Baud rate
Format
Connection
B-7 Electrical serial interface (internal)
RS-232 or RS-485 interface (selectable) for connecting, for example, a modem.
124
DA1... DA4
30 V DC
100 mA DC
1 V
0.001 mA
Min. 125 ms, adjustable on a pitch of 125 ms
Min. 125 ms, adjustable on a pitch of 125 ms
Max. 4 Hz, adjustable
Max. 1000 Hz, adjustable
300 Bd (initial baud rate); automatic up to 9600 Bd.
1 start, 7 data, 1 parity (even) and 1 stop bit.
Optical read-out head on device front panel
(automatic positioning / fixing by magnet).
Elster GmbH