DMC-40x0 Command Reference OP • 179
OP
FUNCTION: Output Port
DESCRIPTION:
The OP command sends data to the output ports of the controller. You can use the output port to
control external switches and relays.
ARGUMENTS: OP m,a,b where
m is an integer in the range 0 to 65535 decimal, or $0000 to $FFFF hexadecimal.
m is the decimal representation of the general output bits Output 1 through Output 8 for
controllers with 4 axes or less. Outputs 1 through Output 16 for controller with 5 or more
axes.
a,b represent the extended I/O in consecutive groups of 16 bits, (values from 0 to 65535).
Arguments which are given for I/O points which are configured as inputs will be ignored.
The following table describes the arguments used to set the state of outputs.
Arguments Blocks Bits Description
m 0 1-8 General Outputs (1-4 axes controllers)
m 0,1 1-16 General Outputs (5-8 axes controllers)
a 2,3 17-32 Extended I/O
b 4,5 33-48 Extended I/O
m = ? returns the value of the argument, where n is any of the above arguments.
USAGE: DEFAULTS:
While Moving Yes Default Value 0
In a Program Yes Default Format 5.0
Command Line Yes
Controller Usage
ALL CONTROLLERS
OPERAND USAGE:
_OP0 contains the value of the first argument, m
_OP1 contains the value of the first argument, a
_OP2 contains the value of the first argument, b
RELATED COMMANDS:
SB Set output bit
CB Clear output bit
EXAMPLES:
OP 0 Clear Output Port -- all bits
OP $85 Set outputs 1,3,8; clear the others
MG _OP0 Returns the first parameter "m"
MG _OP1 Returns the second parameter "a"
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