Using Service Interface; Reading Back The Parameters - Siemens Simatic CFU Commissioning Manual

Servicing and maintenance

10.11 Reading back the parameters

10.10

Using service interface

Requirements
● The field device was last connected to this CFU in the process mode.
● The field device is connected to the service port.
● The field device was detected correctly at the service port. The green LED on the fieldbus
connection (service port) lights up.
Enabling service interface
If using the service interface is required, you must activate the parameter in HW Config.
You can find information on this in section "Assigning parameters to the PA master (parameter
overview - FB M) (Page 80)".
Diagnostics
You can find information on the LED displays in section "Diagnostics via LED displays
(Page 91)".
Calibrating field devices
A diagnostic alarm is generated for the original fieldbus connection of the CFU. This alarm
indicates that the field device has been routed through the service port.
In the commissioning wizard of the CFU, all dialogs in which the fieldbus connections are listed
show that the field device previously connected to another port is currently connected to the
service port.
1. Calibrate the field device.
Set any required correction parameters in the field device.
2. Disconnect the field device from the service port.
3. Connect the field device to the original fieldbus connection of the CFU in the system.
4. Activate any separate process functions.
10.11 Reading back the parameters
"Load to PG/PC" function
The reading back of parameters is possible using the "Load to PG/PC" function. Observe the
information in the online help for STEP 7 and SIMATIC PDM.
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Commissioning Manual, 07/2018, A5E39252870-AC
SIMATIC CFU