R e a d / W r i t e a n I / O G r o u p

When using the IO variable to read the state of a group of inputs/outputs, or write to a group of outputs you would first want to configure the entire I/O group to be general purpose inputs or outputs using the IOS variable. In this case the response or input won’t be a logic state of 1 or 0, but rather the decimal equivalent (0 to 63) of the 6 bit binary number repre- sented by the entire group.

When addressing the I/O as a group the LSB (Least Significant Bit) will be line 1 of the group, (e.g. 21, 31, 41, 51). The MSB (Most Significant Bit) will be line 6 of the group (e.g. 26, 36, 46, 56).

The table on the left shows the bit weight of each I/O line in the group. It also illustrates the state should 6 LED’s be connected to I/O group 20 when entering the IO variables in this exercise.

Configure the IOS variable such that group 20 is all general purpose outputs, active low or:

IOS 20 = 0,1,0

Enter the following in the terminal:

IO 20 = 35

As shown in the table I/O lines 26, 22 and 21 should be illumi- nated, 25, 24 and 23 should be off.

Enter this next:

IO 20 = 7

Now I/O 21, 22 and 23 should be illuminated.

IO 20 = 49

I/O 26, 25, and 21 are illuminated.

BIT WEIGHT DISTRIBUTION TABLE

FOR GROUP 20 I/O

I/O 26

I/O 25

I/O 24

I/O 23

I/O 22

I/O 21

MSB

 

 

 

 

LSB

32

16

8

4

2

1

BINARY STATE OF I/O GROUP 20

IO 20 = 35

1

0

0

0

1

1

I/O 26

I/O 25

I/O 24

I/O 23

I/O 22

I/O 21

MSB

 

 

 

 

LSB

BINARY STATE OF I/O GROUP 20

IO 20 = 7

0

0

0

1

1

1

I/O 26

I/O 25

I/O 24

I/O 23

I/O 22

I/O 21

MSB

 

 

 

 

LSB

BINARY STATE OF I/O GROUP 20

IO 20 = 49

1

1

0

0

0

1

I/O 26

I/O 25

I/O 24

I/O 23

I/O 22

I/O 21

MSB

 

 

 

 

LSB

Table 6.4: Binary State of Outputs

N

NOTE: You can only write to General Purpose Outputs. If you attempt to write to and input or dedicated output type an error will occur!

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Modular LYNX System 12.05.2003

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Intelligent Motion Systems Modular LYNX System manual A d / W r i t e a n I / O G r o u p, Binary State of Outputs
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Modular LYNX System specifications

The Intelligent Motion Systems Modular LYNX System represents a cutting-edge innovation in the realm of automation and control solutions. Developed to offer flexibility and scalability, the LYNX System is designed for a wide range of applications, from advanced robotics to intelligent transportation systems, showcasing its versatile nature in modern industrial environments.

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