ProSoft Technology inRAx 3170-PDP, Руководство пользователя

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3170-PDP ♦ FLEX Platform How Communication Takes Place and I/O Image Table Mapping
FLEX I/O™ PROFIBUS Adapter
Page 26 of 152 ProSoft Technology, Inc.
August 23, 2007
3.2.4 1794-IA8 – 8-point Discrete Input Module Image Table Mapping
Module Image
Inputs
Delay
Time
I/O Image
Not used
Not used
Not used
Input Size
Output Size
0 or 1 Word
1 or 2 Words
Read
Write
1794-IA8 Memory Map
Decimal
Bit 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00 Size
Octal Bit 17 16 15 14 13 12 11 10 07 06 05 04 03 02 01 00 Read Words
Not used D7 D6 D5 D4 D3 D2 D1 D0 Read Word 1
Not used Read Word 2
Not used Write Word 1
Where D = Input Data (where D0 corresponds to input 0, D1 corresponds to input 1, etc.
DT = Input Delay Time (where DT 00 to 07 corresponds to inputs 0 thru 7)
1794-IA8 Input Delay Times
Bits Description Maximum Delay Time
02 01 00 Delay Time for Inputs 00
to 07
Off to On On to Off
0 0 0 Delay Time 0 (default) 8.6ms 26.6ms
0 0 1 Delay Time 1 9ms 27ms
0 1 0 Delay Time 2 10ms 28ms
0 1 1 Delay Time 3 12ms 30ms
1 0 0 Delay Time 4 17ms 35ms
1 0 1 Delay Time 5 26ms 44ms
1 1 0 Delay Time 6 43ms 61ms
1 1 1 Delay Time 7 78ms 96ms