Rockwell Automation 1746-NI16V SLC 500 Analog Input Modules User Manual User Manual

Page 4

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Publication 1746-UM001A-US-P

Table of Contents ii

Input Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-13

Transducer Source Impedance . . . . . . . . . . . . . . . . . . . 3-13
Wiring Input Devices to the 1746-NI16 . . . . . . . . . . . . . 3-13

Chapter 4

Preliminary Operating
Considerations

Module ID Code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Class 1 and Class 3 Interface . . . . . . . . . . . . . . . . . . . . . . . 4-2
Module Addressing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

Class 1 Memory Map . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
Class 3 Memory Map . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4
Output Image - Configuration Words . . . . . . . . . . . . . . 4-5
Input Image - Data Words and Status Words . . . . . . . . . 4-5

Module Update Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6
Channel Filter Frequency Selection . . . . . . . . . . . . . . . . . . 4-9

Channel Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-9

Response to Slot Disabling . . . . . . . . . . . . . . . . . . . . . . . . 4-11

Input Response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-11
Output Response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-11

Chapter 5

Channel Configuration, Data, and
Status

Channel Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
Output Image Channel Configuration Procedure . . . . . . . . 5-2

Channel Configuration Word . . . . . . . . . . . . . . . . . . . . 5-3
Select Channel Enable (Bit 15) . . . . . . . . . . . . . . . . . . . 5-4
Select Channel Filter Frequency (Bits 14 through 12) . . . 5-4
Select Calibration Mode (Bits 11 through 9) . . . . . . . . . 5-5
Select Data Format (Bits 8 through 6) . . . . . . . . . . . . . . 5-6
Select Input Type (Bits 5 and 4) . . . . . . . . . . . . . . . . . . 5-6
Unused Bit (Bit 3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6
Class 1 Handshaking (Bit 2) . . . . . . . . . . . . . . . . . . . . . 5-7
Class 1 Data or Status Configuration (Bits 1 and 0) . . . . 5-7

Input Image - Channel Data Word . . . . . . . . . . . . . . . . . . . 5-8
Scaling the Channel Data Word . . . . . . . . . . . . . . . . . . . . . 5-10

Data Type Descriptions . . . . . . . . . . . . . . . . . . . . . . . . 5-10
Scaling Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-12
Engineering Units to Real Units . . . . . . . . . . . . . . . . . . 5-13
Scaled-for-PID to Real Units . . . . . . . . . . . . . . . . . . . . . 5-14
Proportional Counts to Real Units . . . . . . . . . . . . . . . . . 5-14
1746-NI4 Data Format Units to Real Units . . . . . . . . . . . 5-15
User-Defined Scaling Data Format to Real Units . . . . . . 5-15

Channel Status Checking . . . . . . . . . . . . . . . . . . . . . . . . . . 5-16
Class 1 Status Word. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-18
Class 3 Status Word. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-19
Input Word Bit Definitions . . . . . . . . . . . . . . . . . . . . . . . . 5-20

Error Conditions (Bits 15 through 13) . . . . . . . . . . . . . . 5-20

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