Chapter 3: Configuring the 1762sc-IF4OF4 for RSLogix 500
3-9
User’s Manual Pub. 0300247-01 Rev. D
Section 3.5
Read Input
Data
The input data file contains module status information and analog input data for
each of the four input channels. Analog input data is read for each channel,
converted to a scaled digital value, and stored in the input file. Use the addressing
scheme below to locate the 8 input words used for channels 0 through 7,
respectively.
1.
I/O located on the controller (embedded I/O) is slot 0. I/O added to the
controller (expansion I/O) begins with slot 1.
The layout for the input file is shown below.
Table 3-7 (Input Data File Layout)
Word
Bits
15 14
13 12 11 10
9
8
7 6
5
4
3 2
1
0
General Status
I:e.0
-
-
-
-
-
-
-
-
S7 S6
S5 S4 S3 S2
S1 S0
Output Status
I:e.1
-
LD3 U3 O3 -
LD2 U2 O2 -
LD1 U1 O1 -
LD0 U0 O0
Input Status
I:e.2
-
OC7 U7 O7 -
OC6 U6 O6 -
OC5 U5 O5 -
OC4 U4 O4
CJC Temperature
I:e.3
16 Bit Word
Input Channel 4
Data
I:e.4
16 Bit Word
Input Channel 5
Data
I:e.5
16 Bit Word
Input Channel 6
Data
I:e.6
16 Bit Word
Input Channel 7
Data
I:e.7
16 Bit Word
-
= Not used: Bit set to 0.
S<×> = General status bit: If a bit is set (1) then there is an error associated
with that channel (i.e. under/over range).
U<×> = Under range flag bits: Applies to all input/output types.
Inputs:
When set to 1, indicates input signal is below the value in the “Low
Range” column indicated by the table above. However, the module
Summary of Contents for 1762sc-IF4OF4
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Page 6: ...vi MicroLogix 1200 Analog Combo Module 4Ch IN 4Ch Out User s Manual Pub 0300247 01 Rev D...
Page 41: ...Appendix A Module Specifications A 7 User s Manual Pub 0300247 01 Rev D...
Page 42: ...A 8 Appendix A Module Specifications User s Manual Pub 0300247 01 Rev D...
Page 44: ...User s Manual Pub 0300247 01 Rev D...
