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Basic 6250 Features

Example

Command Description

> INFNC Query status of all inputs; response indicating default conditions is:

*INFNC1-A NO FUNCTION INPUT - STATUS OFF

*INFNC2-A NO FUNCTION INPUT - STATUS OFF

(response continues until all 26 inputs are reported)

> INFNC1 Query status of input #1; response indicating default conditions is:

*INFNC1-A NO FUNCTION INPUT - STATUS OFF

> INFNC1-D Change input #1 to function as a Stop input

> INFNC1 Query status of input #1; response should be now be:

*INFNC1-D STOP INPUT - STATUS OFF

> TIN Query binary status report of all inputs; response indicating default

conditions is: *TINØØØØ_ØØØØ_ØØØØ_ØØØØ_ØØØØ_ØØØØ_ØØ

Input Debounce

Time

Using the Input Debounce Time (INDEB) command, you can change the input debounce time

for all 24 general-purpose inputs (one debounce time for all 24), or you can assign a unique

debounce time to each of the 2 trigger inputs.

General-Purpose Input Debounce: The input debounce time for the 24 general-purpose inputs is

the period of time that the input must be held in a certain state before the 6250 recognizes

it. This directly affects the rate at which the inputs can change state and be recognized.

Trigger Input Debounce: For trigger inputs, the debounce time is the time required between a

trigger's initial active transition and its secondary active transition. This allows rapid

recognition of a trigger, but prevents subsequent bouncing of the input from causing a false

position capture or registration move.

The INDEB command syntax is INDEB,. The first is the input number and the

second is the debounce time in even increments of milliseconds (ms). The debounce time

range is 1 - 250 ms. The default debounce time is 4 ms for the 24 general-purpose inputs, and

24 ms for the 2 trigger inputs (TRG-A & TRG-B). If the first is in the range 1 - 24, the

specified debounce time is assigned to all 24 general-purpose inputs. If the first is 25 or

26, the specified debounce is assigned only to the specified trigger input.

For example, the INDEB5,6 command assigns a debounce time of 6 ms to all 24 general-

purpose inputs. The INDEB26,12 command assigns a debounce time of 12 ms only to

input #26, which is trigger B (TRG-B).

No Function

(INFNCi-A)

When an input is defined as a No Function input (default function), the input is used as a standard

input. You can then use this input to synchronize or trigger program events. To view the current

state of the inputs, use the TIN command. To use the state of the outputs as a basis for

conditional branching or looping statements (IF, REPEAT, WHILE, etc.), use the [ IN ]

command (refer to the Conditional Looping and Branching section in Chapter 7 for details).

Example

Command Description

> DEF prog1 Begin definition of program prog1

- INFEN1 Enable input functions

- INFNC1-A No function for input 1

- INFNC2-A No function for input 2

- INFNC3-D Input 3 is a stop input

- INFNC4-A No function for input 4

- A1Ø Set acceleration

- V1Ø Set velocity

- D4ØØØ Set distance

- WAIT(IN=b1XX1) Wait for input 1 and 4

- GO1 Initiate motion

- IF(IN=bX1) If input 2

- TPE Transfer motor position

- NIF End IF statement

- END End prog1

> RUN prog1 Initiate program prog1

BCD Program

Select

(INFNCi-B)

Inputs can be defined as BCD program select inputs. This allows you to execute defined

programs (DEF command) by activating the program select inputs. Program select inputs are

assigned BCD weights. The table below shows the BCD weights of the 6250's inputs when

inputs 1- 8 are configured as program select inputs. The inputs are weighted with the least

weight on the smallest numbered input.

Input BCD Weight

Input 1 1

1 2 ... 62 63 64 65 66 67 68 69 70 71 72 ... 137 138

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Calculated Industries 6250 Guide de l'utilisateur Page 67

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