Siemens SIMATIC S7-1200 Manual page 43

5 Operating the Application Examples
Figure 5-7
The drop-down menu in the dialog for writing to the holding registers provides
access to all writable holding registers (see
Additionally, you can read all other non-writable registers (blue background) of all
fans to be addressed (1 to "Tags".ebmPapst.lastFan) using the

Device-specific input registers (green font)

Non-writable holding registers (purple font)
Figure 5-8
While all other parameters are being read, the
progress bar display
Reading of the other parameters is a snapshot.
For an update, the action has to be repeated (for example for the operating hours
counter: holding register D009 / D00A).
Use
Holding registers D114/D115 are only shown, when "Save set value" (D103) was
specified.
Note In order to control the fan via Modbus RTU without any problems, certain holding
registers need to have the corresponding default settings (see chapter 5.2.2)
Controlling several fans (ebm-papst) via Modbus RTU
Entry ID: 109476801, V2.0,
appears.
to select the fan for data display.
09/2018
Table 3-1).
button disappears and a
button:
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