Device Array Examples; Device-Channels And Device-Channel Arrays - AMX NETLINX PROGRAMMING LANGUAGE Manual

The index of the last member of the array for which an event notification was received can be determined
by calling
referenced in a particular notification message.

Device array examples

The command below sends
DEV DeviceSetA[ ] = {Device1, Device2, Device3}
SEND_COMMAND DeviceSetA, 'CHARD10'
The command below sends
SEND_COMMAND DeviceSetA[3], 'CHARD10'
and is equivalent to:
SEND_COMMAND Device3, 'CHARD10'
The intent of the feedback statement is to set channel 1 in every device in
off, depending on the value of the right-hand expression; it is unclear what the right-hand expression
evaluates to. The compiler will issue a warning indicating the syntax is unclear and that
DeviceSetB[1]
example:
[DeviceSetA, 1] = [DeviceSetB[1], 2]

Device-channels and device-channel arrays

As the name implies, a device-channel (
represented internally as a
representing the device with a field representing the channel number.
STRUCTURE DEVCHAN
{
}
The first component of a device-channel pair represents the device number, port, and system. It can be
specified as either a single device number, a constant
device specified in a device-channel pair should be defined in the
Channels are expressed as integer constants. A
or
DEFINE_CONSTANT
" are all valid representations of device-channel pairs.
5]
A
DEVCHAN
curly braces does not, as illustrated below:
DEFINE_VARIABLE
DEVCHAN dc1 = {128:1:0, 1}
DEVCHAN dcset[ ] = { {128:1:0, 1}, {128:1:0, 2}, {128:1:0, 3} }
DEFINE_PROGRAM
IF ( [dc1] || [128:1:0, 2] )
[dc1] = 1
dc1 = {129:1:0, 2}
[dc1] = {129:1:0, 2}
NetLinx Programming Language Reference Guide
GET_LAST(MydeviceSet)
'CHARD10'
'CHARD10'
is assumed. To avoid this warning, specify a particular device in the array. Here's an
structure. This structure combines the fields of a
DEVCHAN
DEV //Device
INTEGER //Channel
section. For example, "
enclosed within square brackets implies an evaluation, whereas a
. This is useful for determining which device in an array is
to all devices in the array,
DeviceSetA
to the third device in the array,
(* Correct *)
) is a combination of a device and a channel. It is
DEVCHAN
structure or as a D:P:S specification. Each
DEV
DEFINE_DEVICE
is declared in either the
DEVCHAN
", "
[128, 1] [CONSTANTDPS, 9]
// evaluation of 2 devchans
// feedback
// assigns a new value to dc1
// Syntax Error!
Language Elements
.
,
DeviceSetA
to either on or
DeviceSetA
structure
DEV
section.
DEFINE_VARIABLE
" and "
[128:1:0,
enclosed within
DEVCHAN
43