Siemens WFZ56 Series Mounting And Commissioning Instructions page 33

Rf add-on modules for impeller type meters

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Transmission of the cold quantity

In as far as the option "Cooling energy metering" is ena-

bled on the heat meter, the metering device transmits

both heat metering and cooling energy metering data.

For cooling energy metering, a second metering device

with an identification number calculated from the parame-

ter FabNr of the heat meter +1 is created in the network

node. This device is assigned the medium "Cold" in the

data record.

E.g.:

ID heat

ID cold

The ERROR output is set under the following conditions:

1. If the module is not fitted to a calculator unit.

2. The calculator unit outputs its own ERROR message.

This message can be read off the LCD display of the

calculator unit.

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