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7.16.5 Siemens AS-I Link DSB specific PDC configuration guidelines

The following list summarizes the Siemens AS-I Link DSB specific PDC configuration guidelines that you
must remember while configuring the Siemens AS-I Link DSB PDC.
• The number of PDCs supported by the Siemens AS-I Link DSB is 16.
• The PDC types are mapped to the AS-i Slave devices.
• This DSB supports only the DI/DO channels.
• If you have configured a PDC with a net tag that maps to the data module on the second AS-i Segment,

select Segment 2 in the

ASISEGMENT

column.

– The AS-I segment column appears only while configuring the Siemens AS-i Link DSB for the AS-i Link

Advanced . This is because only AS-i Link Advanced supports two AS-I segments.

– The AS-i Segment (ASISEGMENT) parameter indicates the segment to which the PDC is configured.

This parameter can be used to identify whether the slave device is configured for Segment 1 or Segment
2. This parameter is applicable only to the Siemens AS-i Link DSB.

– It is an assumption that the configured data module for segment 2 must be in slot 2, and the configured

data module for segment 1 must be slot 1.

• The net tag associated with the PDCs types must map to the 4 bytes that covers the 7 or 8 slave devices

being referenced. For more information on the PDC types of the Siemens AS-I Link DSB, refer to the

PROFIBUS Gateway Module Parameter Reference Guide

• In the

Number of Channels

column, the number of channels are automatically updated based on the PDC

type. The "Slave 1-7 inputs" and "Slave 1-7 outputs" PDC types have 28 channels. The other PDC types
have 32 channels which are grouped as four channels for each slave device.

• In the

Channel Number

column, the channel number is automatically updated based on the number of

channels configured for the selected module.
For example, if the number of channels configured for a module is 4, then this column lists the channel
numbers as 0, 1, 2, and 3.

• In the

Channel Type

, the channel type is automatically selected based on the PDC type.

• In the

Channel Data Type

, the channel data type is always "Boolean" as this DSB supports only the DI and

DO channels.

• The

Channel Data Offset

column is not applicable to the Siemens AS-i Link DSB.

• The

Bit Offset

column is not applicable to the Siemens AS-i Link DSB.

• The

Low Range

column is not applicable to the Siemens AS-i Link DSB as this DSB does not support

analog channels.

• The

High Range

column is not applicable to the Siemens AS-i Link DSB as this DSB does not support

analog channels.

• With R410, you can modify the value of the following parameter even after a PDC is associated and

connected to a PIOMB. However, you must ensure that you reload both the DSB and the PIOMB after
modifying the parameter value. If you do not reload both the DSB and the PIOMB, there may be a break in
the connection between the DSB and the PIOMB.
– Channel Description (CHDESCRIPTION)

7.16.6 Siemens ET200M DSB specific PDC configuration guidelines

The following list summarizes the Siemens ET200M DSB specific PDC configuration guidelines that you must
remember while configuring the Siemens ET200M DSB PDC.
• The number of PDCs supported by the Siemens ET200M DSB is 16.
• The PDC configuration must be done through the

IOM configuration

tab.

• In the

Number of Channel

column, you must enter the number of channels manually.

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