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-1700/1800 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.

1X80

For the DMC-1750 thru DMC-1780 or DMC-1850 thru DMC-1880, the @IN[n] function is valid for inputs 1 thru 24. For the DMC-17X8, the @IN[n] function is valid for inputs 1 through 80.

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:

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

Example - Start Motion on Switch

Motor X must turn at 4000 counts/sec when the user flips a panel switch to on. When panel switch is turned to off position, motor X must stop turning.

Solution: Connect panel switch to input 1 of DMC-1700/1800. High on input 1 means switch is in on position.

INSTRUCTION

FUNCTION

#S;JG 4000

Set speed

AI 1;BGX

Begin after input 1 goes high

AI -1;STX

Stop after input 1 goes low

AMX;JP #S

After motion, repeat

EN;

 

Input Interrupt Function

The DMC-1700/1800 provides an input interrupt function which causes the program to automatically execute the instructions following the #ININT label. This function is enabled using the II m,n,o command. The m specifies the beginning input and n specifies the final input in the range. The parameter o is an interrupt mask. If m and n are

unused, o contains a number with the mask. A 1 designates that input to be enabled for an interrupt, where 20 is bit 1, 21 is bit 2 and so on. For example, II,,5 enables inputs 1 and 3 (20 + 22 = 5).

A low input on any of the specified inputs will cause automatic execution of the #ININT subroutine. The Return from Interrupt (RI) command is used to return from this subroutine to the place in the program where the interrupt

DMC-1700/1800

Chapter 7 Application Programming • 167

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Galil DMC-1700, DMC-1800 Digital Inputs, Input Interrupt Function, Example Start Motion on Switch, AI 1BGX, Amxjp #S
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DMC-1800, DMC-1700 specifications

The Galil DMC-1700 and DMC-1800 are advanced motion controllers widely recognized for their high performance and versatility in the automation and robotics industries. These controllers are designed to meet the demands of complex motion control applications, providing users with enhanced features and innovative technologies that optimize motion precision and efficiency.

One of the main features of the Galil DMC-1700 is its ability to handle up to 8 axes of motion control. This capability makes it suitable for a range of applications, from simple point-to-point movements to intricate trajectories in multi-axis systems. In contrast, the DMC-1800 extends this functionality, supporting up to 64 axes, making it ideal for large-scale automation environments.

Both models leverage Galil's powerful programming interface, which simplifies the development of motion control applications. The DMC-1700 and DMC-1800 controllers utilize a high-level programming language that supports advanced motion commands, including linear interpolation, circular interpolation, and complex motion profiles. This feature allows users to implement sophisticated motion sequences seamlessly.

In terms of connectivity, the Galil DMC series offers multiple communication options, including Ethernet, RS-232, and CAN bus, ensuring compatibility with various hardware and enabling easy integration into existing systems. The controllers also come equipped with digital and analog I/O ports, providing flexibility for sensor feedback and actuator control.

The advanced technology incorporated into both the DMC-1700 and DMC-1800 includes on-board PID control, which ensures precise motion control through closed-loop feedback. This results in improved stability and accuracy, particularly in high-speed applications. Additionally, the controllers offer extensive diagnostics and monitoring capabilities, allowing for real-time performance analysis and troubleshooting.

Another notable characteristic of these motion controllers is their compact design, which offers space-saving advantages while maintaining high processing power. Their robust construction and ability to operate in challenging environments make them suitable for a wide range of industrial applications, from CNC machining to assembly lines.

In conclusion, the Galil DMC-1700 and DMC-1800 motion controllers stand out due to their high-performance capabilities, advanced programming features, and flexibility in connectivity. With their ability to handle complex motion control tasks efficiently, these controllers are invaluable tools for engineers and manufacturers looking to enhance their automation processes. By integrating Galil's innovative motion control technology, industries can achieve greater precision, speed, and reliability in their operational workflows.
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