Rockwell Automation 1798-IB4 FlexArmor User Manual - Manual (Page 21)

Publication 1798-UM001B-EN-P - November 2002
How Communication Takes Place and I/O Image Table Mapping 2-7
Input Delay Times for the 1798-IB4D Input Module
Description of 1798-IB8 Image Table Mapping
Memory Map of 8 Point Discrete Input Module Image Table - 1798-IB8
Bits Description Selected Delay Time
02 01 00 Delay Time for Inputs
00-03
0 0 0 Delay Time 0 (default) 256µs
0 0 1 Delay Time 1 512µs
0 1 0 Delay Time 2 1ms
0 1 1 Delay Time 3 2ms
1 0 0 Delay Time 4 4ms
1 0 1 Delay Time 5 8ms
1 1 0 Delay Time 6 16ms
1 1 1 Delay Time 7 32ms
I/O Image
Input Size
Module Image
1 or 2 Words
0 or 1 Word
Read
Write
Output Size
Inputs
Delay
Time
Not used
Reserved
Fault
Input
Fault
Enabled Reserved
Reserved
42840
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
Not used D7 D6 D5 D4 D3 D2 D1 D0 Read Word 1
Not used FO Read Word 2
Reserved FE Reserved DT 00-07 Write Word 1
Where D = Input Data (D0 corresponds to input 0, D1 corresponds to input 1, etc.), DT = Input Delay Time (DT 00-07
corresponds to inputs 0 through 7) FO = Fault Bit - Indicates status of module sensor power (0=Normal, 1=Sensor Power
Shorted), FE = Fault Enabled Bit, must be set to return fault bit (FO) from module. The “Fault Enabled” bit will be set
automatically if the input filter times are configured through RSNetWorx for DeviceNet.