Galil DMC-4040 - Digital Inputs

Example- Output Bit
The Output Bit (OB) instruction is useful for setting or clearing outputs depending on the value of a variable, array,
input or expression. Any non-zero value results in a set bit.
Instruction Interpretation
OB1, POS Set Output 1 if the variable POS is non-zero. Clear
Output 1 if POS equals 0.
OB 2, @IN [1] Set Output 2 if Input 1 is high. If Input 1 is low,
clear Output 2.
OB 3, @IN [1]&@IN [2] Set Output 3 only if Input 1 and Input 2 are high.
OB 4, COUNT [1] Set Output 4 if element 1 in the array COUNT is non-
zero.
The output port can be set by specifying an 16-bit word using the instruction OP (Output Port). This instruction
allows a single command to define the state of the entire 16-bit output port, where bit 0 is output 1, bit1 is output2
and so on. A 1 designates that the output is on.
Example- Output Port
Instruction Interpretation
OP6 Sets outputs 2 and 3 of output port to high. All other
bits are 0. (2
1
+ 2
2
= 6)
OP0 Clears all bits of output port to zero
OP 255 Sets all bits of output port to one.
(2
2
+ 2
1
+ 2
2
+ 2
3
+ 2
4
+ 2
5
+ 2
6
+ 2
7
)
The output port is useful for setting relays or controlling external switches and events during a motion sequence.
Example - Turn on output after move
Instruction
Interpretation
#OUTPUT Label
PR 2000 Position Command
BG Begin
AM After move
SB1 Set Output 1
WT 1000 Wait 1000 msec
CB1 Clear Output 1
EN End
Digital Inputs
The general digital inputs for are accessed by using the @IN[n] function or the TI command. The @IN[n] function
returns the logic level of the specified input, n, where n is a number 1 through 48.
Example - Using Inputs to control program flow
Instruction Interpretation
JP #A,@IN[1]=0 Jump to A if input 1 is low
JP #B,@IN[2]=1 Jump to B if input 2 is high
AI 7 Wait until input 7 is high
AI -6 Wait until input 6 is low
Chapter 7 Application Programming • 165 DMC-40x0 User Manual