Siemens Simatic M7-400 Uživatelský manuál stáhnout pdf (Strana 170)

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101

Digital Modules

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S7-400, M7-400 Programmable Controllers Module Specifications

A5E00069467-07

Setting the Input Delay for Channel Groups

You can only set the input delay for each group of channels. 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.

Note

The parameters that are entered for the remaining channels (1 to 7 and 9 to 15)

must be equal to the value 0 or 8, otherwise those channels will be reported as

being incorrectly parameterized.

Any hardware interrupts that have occurred in the meantime will be reported after

acknowledgement.

Optimum Signal Propagation Delays

You can achieve the fastest signal propagation delay with the following settings:

• Both channel groups are parameterized with an input delay of 0.5 ms

• The Diagnostics parameter is disabled

• The Diagnostic Interrupt parameter is disabled

1 2 ... 165 166 167 168 169 170 171 172 173 174 175 ... 637 638

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