Inputs Words
Original instructions
About us
Overview
This section describes how to interpret the value of the input words.
Words Used
The status of the 170 ANR 120 90 module and the values of the analog and discrete input channels are contained in input words 1 through 8 as follows:
Word
Input Data
1
Status word (module status)
2
State of the 8 discrete inputs
3
Analog input word channel 1
4
Analog input word channel 2
5
Analog input word channel 3
6
Analog input word channel 4
7
Analog input word channel 5
8
Analog input word channel 6
9 ... 12
Not used
Word 1
The Status word (word 1) contains information about the health of the module and the status of the discrete outputs. Word 1 also contains network communication loss, over temperature of the discrete outputs and short circuit at the discrete outputs.
Bits 15 ... 9
Bit 8
Bits 7 ... 4
Bit 3
(Channel 7, 8)
Not used
0 = Bad module health (module lost communication)
1 = Healthy module
Not used
0 = Fault
1 = No fault
Bit 2
(Channel 5, 6)
Bit 1
(Channel 4, 3)
Bit 0
(Channel 1, 2)
0 = Fault
1 = No fault
0 = Fault
1 = No fault
0 = Fault
1 = No fault
Word 2
Discrete input register
This word contains a right justified binary eight bit data field.
Words 3 ... 8
Analog input register
Words 3 ... 8 map to the analog input register. Each word in this range contains a left justified 15 bit data field. The range is from 0H to 7FFE hex, but the resolution is 14 bit. (0 ... 32766 decimal or 0 ... 7FFE hex). See Analog I/O Map.
Words 9 ...12
Words 9 ... 12 are not used.
3x Registers
The 3x registers traffic copped to this module are used for input data as follows.
I/O Map Register
Data Type
3x + 1
Data for discrete input
3x + 2
Data for analog input channel 1
3x + 3
Data for analog input channel 2
3x + 4
Data for analog input channel 3
3x + 5
Data for analog input channel 4
3x + 6
Data for analog input channel 5
3x + 7
Data for analog input channel 6
Range
Input operating range
Input Voltage
Data is left justified
Comment
Input Range
0 ... 10.000V
0 ... 32000
Nominal Input Voltage Range
Input Over Range
10.000 ... 10.238V
32002 ... 32764
Nondestructive Tolerated Input Over Range Voltage
Input Out of Range
>=10.238
32766
(7FFE Hex)
Input Voltage Exceeding This Threshold May Damage The Module