Commissioning the DP/PA Link
6-8
DP/PA Link and Y Link Bus Couplings
A5E00193841-011
6.3.3 Configuring PROFIBUS-PA field devices
Prerequisite
The product names of the required PA field devices must be entered in the device
master file of the IM 157.
Configuration principles
To configure the DP/PA link, select the manufacturer’s details for the PA field
devices (product description and, possibly, the module description) from your
configuration tool. Enter the information on the PA field devices according to their
addresses without any gaps and in ascending order.
Figure 6-3 shows you an example of a configuration.
Procedure
Step Activity
1 Switch to the DP slave configuration in your configuration tool.
2 In the ”Order number” or ”Module” field, enter the manufacturer ID (e.g.
SIEMENS SITRANS P) for the first PA field device and accept it in the first slot.
Set the PROFIBUS address for the PA field device.
Repeat this procedure for all PA field devices in use.
3 Terminate the entry and close the configuration. The remaining steps (e.g. save,
compile ...) are the same as for other DP slaves.
PROFIBUS address of the IM 157 in the PA master system
In the PA master system, the IM 157 uses the address 2. The first possible
address for PA field devices is 3.
Suitable measuring transducers
Measuring transducers that accept a parameter assignment frame of 10 bytes can
be used.
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