BA_EQJW126F001_EN001
55
Electrical connection
8.4
Meter bus/Modbus gateway
The controller can be connected (RJ-45 jack) to an optional meter bus/Modbus
gateway (1400-9867). The gateway can communicate with up to six heat and
water meters ac- cording to EN 1434-3. Flow rate or capacity limitation is possible
on the basis of the val- ues measured at heat meter WMZ1.
Details on the use of the different heat or water meters can be found in the
technical documentation TV-SK 6311.
8.4.1
Activating the meter bus
To successfully transfer data from the heat meter to the gateway, the heat meter
must use a standardized protocol in accordance with EN 1434-3. It is not possible
to make a general statement about which specific data can be accessed in
each meter. For details on the different meter makes, refer to the technical
documentation TV-SK 6311. All nec- essary function block parameters to set up
the communication with heat or water me- ters are available in CO6 -> F10. The
meter bus address, the model code and the read- ing mode must be specified for
the heat meters WMZ1 to WMZ6. A meter bus address must be unique and
correspond with the address preset in the WMZ. If the preset meter bus address is
unknown, a single heat meter connected to the gateway can be assigned the
meter bus address 254. The address 255 deactivates the communication with
the respective WMZ. The model code to be set for the heat meter can be found
in TV-SK 6311. In general, the default setting of 1434 can be used for most
devices. The meters can be read either automatically every 24 hours (approx.),
continuously or when the coils (= Modbus data points) assigned to the heat meters
WMZ1 to WMZ6 are over- written with the value 1 via the system bus interface.
In extended information level, the flow rate and/or capacity value is displayed
when the flow rate and/or capacity limitation is activated. Press the rotary
pushbutton to read the corresponding limit value.
Note:
It may take up to two minutes until the controller enables access to C06 ->
F10 af- ter the components (controller or gateway) have been rebooted.
Содержание equitherm EQJW126F001
Страница 5: ...Contents BA_EQJW126F001_EN001 5 12 5 Customer data 80 ...
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Страница 38: ...Functionsof theheatingcircuit 32 BA_EQJW126F001_EN001 ...
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Страница 65: ...Communication BA_EQJW126F001_EN001 51 Station address ST 255 PA6 1 to 247 with CO6 F02 1 1 to 32000 ...
Страница 68: ...54 BA_EQJW126F001_EN001 Electrical connection block CO6 F04 1 is activated ...
Страница 74: ...Electrical connection 56 BA_EQJW126F001_EN001 ...
Страница 79: ...Installation BA_EQJW126F001_EN001 61 60 BA_EQJW126F001_EN001 ...
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Страница 82: ...Fig 7 Connecting the EQJW126 Controller with standard back panel Electrical connection 62 BA_EQJW126F001_EN001 ...
Страница 89: ...Appendix BA_EQJW126F001_EN001 69 F Function block number WE Default value Anl System code number ...
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