Galil DMC-2X00 Example- Set Bit and Clear Bit, Example- Output Bit, Example- Output Port

Example- Set Bit and Clear Bit

Instruction	Interpretation
SB6	Sets bit 6 of output port
CB4	Clears bit 4 of output port

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 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.

Example- Output Port

Instruction

OP6

Interpretation

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

OP0	Clears all bits of output port to zero
OP 255	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

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 96..

114 • Chapter 7 Application Programming DMC-2X00