Siemens S7-400PLC Dokumentacja Pobierz pdf (Strona 150)

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Digital modules

4.15 Digital output module SM 422; DO 16 x DC 20-125 V/1.5 A (6ES7422-5EH10-0AB0)

S7-400 Automation System Module Data

150 Reference Manual, Edition 09/2009, A5E00850736-06

4.15.2 Assigning parameters to the SM 422; DO 16 x DC 20-125 V/1.5 A

Parameter assignment

You will find a description of the general procedure for assigning parameters to digital

modules in the respective sections.

Parameters of the SM 421; DO 16 x DC 20-125 V/1.5 A

You will find an overview of the parameters you can set and their default settings for the

SM 422; DO 16 x DC 20-125 V/1.5 A in the following table.

Table 4- 12 Parameters of the SM 421; DO 16 x DC 20-125 V/1.5 A

Parameters Value range Default

setting

Parameter type Scope

Enable

 Diagnostic interrupt

Yes/no No Dynamic Module

 Destination CPU for interrupt

1 to 4 - Static Module

Reaction to CPU STOP Substitute a value (SV)

Keep last value (KLV)

SV Dynamic Module

Diagnostics

 Load voltage L+ missing

Yes/no No Static Channel group

 Short-circuit to M

Yes/no No Static Channel

Set substitution value "1" Yes/no No Dynamic Channel

If you use the module in ER-1/ER-2, you must set this parameter to "No" because the interrupt lines are not available in

ER-1/ER-2.

Only in the CR (central rack) is it possible to start up the digital modules with the default settings.

Assigning the "No load voltage L+" diagnostics to channel groups

You can only set the "No load voltage L+" diagnostics separately for each channel group. In

other words, the setting for channel 0 applies to inputs 0 to 7, and the setting for channel 8

applies to inputs 8 to 15.

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