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Programming
Overview
This section describes the Send_Commands, Send_Strings, and Channel commands you can use to program the NXI.
The examples in this section require a declaration in the DEFINE_DEVICE section of your program to work correctly.
Refer to the NetLinx Programming Language instruction manual for specifics about declarations and DEFINE_DEVICE
information.
Using the ID Button
The ID Button on the rear panel of the NXI (FIG. 3 on page 1) is used in conjunction with the NetLinx Studio software
program to allow you to assign new Device and System numbers for the NXI.
1.
Using NetLinx Studio, place the system in Identity (ID) Mode. ID Mode means the entire system is put on hold
while it waits for an event from any NetLinx device in the named system (for example, pushing the ID button on the
NXI). The device that generates the first event is the identified device.
2.
Press the ID Mode button to generate an event from the NXI and assign new device and system numbers in NetLinx
Studio.
Device:Port:System (D:P:S)
A device is any hardware component that can be connected to an AXlink or ICSNet bus. Each device must be assigned a
unique number to locate that device on the bus. The NetLinx programming language allows numbers in the range 0-
32,767. Device 0 refers to the local master; numbers greater than 32,767 are reserved.
NetLinx requires a Device:Port:System (D:P:S) specification. This D:P:S triplet can be expressed as a series of
constants, variables separated by colons, or a DEV structure. For example:
STRUCTURE DEV
{
INTEGER Number
INTEGER Port
INTEGER System
}
The D:P:S notation is used to explicitly represent a device number, port and system. For example, 128:1:0 represents the
first port on device 128 on this system. If the system and Port specifications are omitted, (e.g. 128), system 0 (indicating
this system) and port 1 (the first port) is assumed. Here's the syntax:
NUMBER:PORT:SYSTEM
where:
Program Port Commands
The Program port commands listed in the following table can be sent directly to the Master Card using a terminal
program (i.e. Telnet). Be sure that your PC's COM port and terminal program's communication settings match those in
the table below:
PC COM Port Communication Settings
Baud
Parity
Data Bits
Stop Bits
Flow Control
In your terminal program, type "Help" or a question mark ("?") and <Enter> to display the Program port commands
listed in the following table.
NetLinx Integrated Controller (No Master) - Operation Reference Guide
// Device number
// Port on device
// System the device belongs to
NUMBER:
16-bit integer represents the device number
PORT:
16-bit integer represents the port number (in the range 1 through the number of
ports on the Controller or device)
SYSTEM:
16-bit integer represents the system number (0 = this system)
38400 (default)
None
8
1
None
Programming
1
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