RMG ERZ2000-NG, Руководство по эксплуатации

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6 Flow meters
Manual ERZ 2000-NG · EN07 · 2019, May 13th
235
The connection and selection of all other listed ultrasonic meters are also permissible
for official custody-transfer applications.
Then, the recommendation which was entered is shown in coordinate
VJ98 Used
button .
Note
Caution:
Even if, for example, the "swirl" information is transmitted in the same
field with the same register, the "swirl" value is defined depending on the
device and can deviate significantly between different measuring devices.
The same applies for all device-specific parameters.
6.4.8 COM6 interface configuration
The COM6 serial interface must be operated with parameters 38400 Baud, 8 bits,
parity None and 1 stop bit, as well as the operating mode of universal Modbus master
for communication with ultrasonic meters via Instance F. This is located in
IB Serial
interfaces in coordinates IB31 to IB33
(Figure 171: COM6 interface configuration).
…
Figure 171: COM6 interface configuration
Note
Then, COM6 is no longer available for communication with gas chromato-
graphs. Therefore, the Modbus master communication for GC1 and GC2
must be assigned or deactivated in coordinates IL50 and IL51 of serial in-
terace COM7 (
Figure 172: Modbus serial C7 operating mode
) (
Figure 173:
Operating mode off
), provided that no Modbus IP should be used.