Galil DMC-13X8 user manual Digital Inputs, Instruction Function

For example:

INSTRUCTION	FUNCTION
SB6	Sets bit 6 of output port
CB4	Clears bit 4 of output port

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	FUNCTION
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 8-bit word using the instruction OP (Output Port). This instruction allows a single command to define the state of the entire 8-bit output port, where 20 is output 1, 21 is output 2 and so on. A 1 designates that the output is on.

For example:

INSTRUCTION FUNCTION

OP6

OP0 OP 255

Sets outputs 2 and 3 of output port to high. All other bits are 0. (21 + 22 = 6) Clears all bits of output port to zero

Sets all bits of output port to one.

(22 + 21 + 22 + 23 + 24 + 25 + 26 + 27)

The output port is useful for setting relays or controlling external switches and events during a motion sequence.

Example - Turn on output after move

#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 DMC-13X8 has eight digital inputs for controlling motion by local switches. The @IN[n] function returns the logic level of the specified input 1 through 8.

For example, a Jump on Condition instruction can be used to execute a sequence if a high condition is noted on an input 3. To halt program execution, the After Input (AI) instruction waits until the specified input has occurred.

Example:

USER MANUAL Chapter 7 Application Programming • 139