Galil DMC-1800, DMC-1700 user manual User Interrupts UI command, Servicing Interrupts

Bit Number	Condition
0	X motion complete
1	Y motion complete
2	Z motion complete
3	W motion complete
4	E motion complete
5	F motion complete
6	G motion complete
7	H motion complete
8	All axes motion complete
9	Excess position error*
10	Limit switch
11	Watchdog timer
12	Reserved
13	Application program stopped
14	Command done †
15	Inputs* (uses n for mask)

†Not available when using new version 7 drivers.

The argument “n” enables interrupts for the first 8 general inputs. To enable interrupts for the desired inputs, set bit 15 of the “m” argument, then set the desired inputs using the 8-bit mask for the “n” argument. For example, to enable interrupt on inputs 1-4, set EI32768,15. Note that the input interrupts must be reset for all inputs after any input has caused an interrupt.

Bit number	Input
0	Input 1
1	Input 2
2	Input 3
3	Input 4
4	Input 5
5	Input 6
6	Input 7
7	Input 8

User Interrupts (UI command)

The DMC-1700/1800 also provides 16 User Interrupts which can be sent by executing the command UIn to the DMC- 1700/1800, where n is an integer between 0 and 15. UI commands are useful in DMC programs to allow the application program communicate with a host application.

Servicing Interrupts

When an interrupt occurs, the motion controller provides a status byte to indicate which condition has occurred.

66 • Chapter 4 - Software Tools and Communications DMC-1700/1800