Operation/Reference Guide
NXP-CPI16
NetLinx Custom Panel Interface
Custom Panel Interfaces
Document ID: 060-004-2394
Last Revised: 8/16/2006
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Table of Contents
Table of Contents
Product Information ...........................................................................................1
Specifications............................................................................................................ 2
Installation ..........................................................................................................3
Input and Output Connectors ................................................................................... 3
Quadrature Connectors ............................................................................................ 3
Quadrature Inputs........................................................................................................... 4
Programming ......................................................................................................5
Levels........................................................................................................................ 5
Send_Commands ...................................................................................................... 6
System Worksheets ..........................................................................................11
NXP-CPI16 NetLinx Custom Panel Interface
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Table of Contents
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NXP-CPI16 NetLinx Custom Panel Interface
Product Information
The AMX NXP-CPI16 is a NetLinx panel device that allows system integrators to connect switches,
indicators, and rotary encoders to a NetLinx control system. Providing contact closure inputs and
feedback outputs for up to 16 buttons, the miniature PC board contains two 20-pin headers for ribbon
cable installation or direct mounting to a printed circuit board. FIG. 1 shows an NXP-CPI16.
Product Information
Indicator
power connector
ICSNet connectors
Status LED
ID button
20-pin I/O header with
Outputs 9-16
and Inputs 9-16
(Header 2)
6-pin quadrature connector
(Header 3)
FIG. 1 NXP-CPI16
NXP-CPI16 NetLinx Custom Panel Interface
20-pin I/O header with
Outputs 1-8
and Inputs 1-8
(Header 1)
1
Product Information
Specifications
The table below lists the NXP-CPI16 specifications.
NXP-CPI16 Specifications
Power Requirement 12 VDC (300 mA max.)
Input Connectors:
Indicator Power Two-pin 3.5 mm captive-wire. This connector is used to supply a higher voltage
and more current to the power pins of Header 1 and Header 2. The external
supply connected to the two-pin captive-wire must be greater than +12 V. If the
external supply voltage is less than that, the ICSNet supply (+12 V) will be
used for the Power pin of the I/O connectors (not the external supply).
Closure Inputs 16 closure inputs activated with a GND or TTL Low (< 0.8 V). Inputs are sam-
pled approximately every 10 msec and are debounced in software.
Rotary Encoder Inputs 2 quadrature inputs on a 2 x 3 header with a +5 V supply pin (supplying up to
100 mA) and a GND pin.
ICSNet 2 RJ-45 connectors for ICSNet connection
ID Button Generates an event from the CPI16 to allow you to assign new Device num-
bers, using ID mode in the NetLinx Studio software program.
LED ICSP status indicator (green)
Open Collector Outputs 16 open-collector outputs, acting as a switch to ground, up to 100 mA. Outputs
can be connected to voltages ranging between 0 V and +28 V. Each output is
updated approximately every 10 msec.
Dimensions (HWD) 2.75" x 1.75" x 0.062" (69.85 mm x 44.45 mm x 1.557 mm)
Accessories • 6-pin header with 3 feet (0.91 m) of ribbon cable
• Two mating 20-pin headers, each with 3 feet of ribbon cable attached
• One green 2-pin 3.5 mm pitch captive wire connector for external indicator
power.
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NXP-CPI16 NetLinx Custom Panel Interface
Installation
Input and Output Connectors
To install the NXP-CPI16, connect ribbon cables or a PC board to one or more of the headers. The table
below shows the pinouts for the two 20-pin headers.
I/O Connector Pinouts
Header 1 Header 2
Pin Signal Function Pin Signal Function
1 Output 1 OC to Ground 1 Output 9 OC to Ground
2 Output 2 OC to Ground 2 Output10 OC to Ground
3 Output 3 OC to Ground 3 Output 11 OC to Ground
4 Output 4 OC to Ground 4 Output 12 OC to Ground
5 Output 5 OC to Ground 5 Output 13 OC to Ground
6 Output 6 OC to Ground 6 Output 14 OC to Ground
7 Output 7 OC to Ground 7 Output 15 OC to Ground
8 Output 8 OC to Ground 8 Output 16 OC to Ground
9 Ground Signal Ground 9 Ground Signal Ground
10 Power Power Supply 10 Power Power Supply
11 Ground Signal Ground 11 Ground Signal Ground
12 Ground Signal Ground 12 Ground Signal Ground
13 Input 1 Logic Input 13 Input 9 Logic Input
14 Input 2 Logic Input 14 Input 10 Logic Input
15 Input 3 Logic Input 15 Input 11 Logic Input
16 Input 4 Logic Input 16 Input 12 Logic Input
17 Input 5 Logic Input 17 Input 13 Logic Input
18 Input 6 Logic Input 18 Input 14 Logic Input
19 Input 7 Logic Input 19 Input 15 Logic Input
20 Input 8 Logic Input 20 Input 16 Logic Input
Installation
Quadrature Connectors
The table below lists the connector pinouts for the quadrature connector.
Quadrature Connector Pinouts
Header 3
Pin Signal Function
1 Ground Signal ground
2 1A Encoder # 1, Input A
3 1B Encoder # 1, Input B
4 2A Encoder # 2, Input A
5 2B Encoder # 2, Input B
6 +5 V Encoder power
NXP-CPI16 NetLinx Custom Panel Interface
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Installation
Quadrature Inputs
By default, the quadrature inputs expect the phase relationship, shown in FIG. 2, for a clockwise rotation
of the encoder to generate a positive level change. If the phase relationship does not match the example,
a clockwise rotation will generate a negative level change. This can be corrected in two ways:
Inputs A and B can be wired in reverse so the phase relationship is obtained at the quadrature
encoder input pins.
Insert a QDIR Send_Command in the NetLinx program.
200 nsec minimum
Input A
Input B
FIG. 2 Quadrature inputs phase relationship for clockwise rotation
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NXP-CPI16 NetLinx Custom Panel Interface
Programming
There are two modes of Channel Assignments: Discrete Output and Default Mode. Both modes are set
using the ‘STATUS-ON’ and ‘STATUS-OFF’ commands. Discrete Output mode should be used if
channel status feedback for the outputs needs to be separate from the inputs. The tables below provide
channel assignment information on both modes. For more information, refer to the
Send_Commands section on page 6.
Status ON Mode Channel Assignment
I/O Corresponding Channel
Inputs 1 - 8 Channels 1 - 8 (On/Push/Off/Release)
Outputs 1 - 8 Channels 9 - 16 (On/Off only)
Inputs 9 - 16 Channels 17 - 24 (On/Push/Off/Release)
Outputs 9 - 16 Channels 25 - 32 (On/Off only)
Programming
Assignment
Status OFF Mode Channel Assignment
I/O Corresponding Channel
Assignment
Inputs 1 - 8 Channels 1 - 8 (Push/Release only)
Outputs 1 - 8 Channels 1 - 8 (On/Off only)
Inputs 9 - 16 Channels 9 - 16 (Push/Release only)
Outputs 9 - 16 Channels 9 - 16 (On/Off only)
Levels
By default all levels have a data type of byte (8-bits), which gives a range of 0-255 for the Level Value.
The ‘LVL_SZ’ Send_Command sets the size of the value for levels 1 - 4. It is important that the variable
in any SEND_LEVEL command and CREATE_LEVEL statement in the NetLinx program match the
data type selected by the ‘LVL_SZ’ Send_Command. Incorrect levels may occur if the data types do not
match.
The input and output Level values will not be sent until a ’LEVON’ command
message is received by the CPI16. A transmission of levels will cease after the
receipt of a ’LEVOFF’ command.
The values of Levels 1 and 2 (quadrature inputs) will be sent whenever the input changes.
Levels
Level Function
1 Quadrature Input 1
2 Quadrature Input 2
3 Bargraph 1 (Outputs 1 - 8) - if configured for bargraph mode
4 Bargraph 2 (Outputs 9 - 16) - if configured for bargraph mode
NXP-CPI16 NetLinx Custom Panel Interface
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Programming
Send_Commands
Use the Send_Commands listed in the table below to program the NXP-CPI16.
Send_Commands
BMODE
Configures either
set of 8 outputs as
an 8-segment bargraph display.
LEVOFF
Keeps any level
value from transmitting.
LEVON Syntax:
Syntax:
‘BMODE <bargraph #> <bargraph mode>’
Var iable s:
Where <bargraph #>
1 - Selects bargraph 1 (outputs 1 - 8)
2 - Selects bargraph 2 (outputs 9 - 16)
Where <bargraph mode>
0 - normal bar mode
1 - normal dot mode (only one peak LED on at a time)
2 - special bar mode (a level of 1 - 15 still has the first LED on)
3 - special dot mode (a level of 1 -15 still has the first LED on)
4 - inverse normal bar mode
5 - inverse normal dot mode
6 - inverse special bar mode
7 - inverse special dot mode
8 - individual element, discrete mode
9 - inverse individual element, discrete mode
OFF - disables bargraph mode [default]
The command is used to configure either set of 8 outputs as an 8-segment bargraph display. By default, Bargraph mode is OFF and all outputs are discrete outputs that are controlled via CHANNEL ON/OFF messages. If this command is received, the selected bank
of 8 outputs will respond according to the selected mode.
In modes 8 and 9, the discrete LEDs that are ON correspond to the bit mask sent via a
Send_Level command. For Example:
SEND_LEVEL CPI16, 3, $5A
Turns on LEDs 2, 4, 5, and 7 of bargraph #1.
Example:
SEND_COMMAND ‘BMODE 1 0’
Reconfigures Outputs 1 - 8 such that they now act as an 8-segment bargraph.
Syntax:
‘LEVOFF’
The NXP-CPI16 will not transmit any level value messages after the receipt of this command until the receipt of another LEVON command.
‘LEVON’
The NXP-CPI16 transmits level value messages after the receipt of this command.
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NXP-CPI16 NetLinx Custom Panel Interface
Send_Commands (Cont.)
LV L_ S Z
Sets the size (data
type) of the value
that will be used by
the NXP-CPI16
when receiving
and sending
LEVEL messages.
STATUS-OFF
Puts the NXPCPI16 in Default
Mode (non-Discrete Output
Mode).
The default is byte (8-bits), which yields a range of 0 - 255 for the level value.
Syntax:
‘LVL_SZ <level #> <data type of level value>’
Var iable s:
Where <level #>
1 - Quadrature Input 1
2 - Quadrature Input 2
3 - Bargraph 1 (using outputs 1 - 8)
4 - Bargraph 2 (using outputs 9 - 16) and <data type of level value>
B - Byte (8-bits); range of 0 - 255 [default level data type]
I - Integer (16 bits); range of 0 - 65,535
S - Signed Integer (signed 16-bits); range of -32,768 to 32,767
Example:
SEND_COMMAND ’LVL_SZ 2 S’
Quadrature Input 2's data type is now Signed Integer.
Syntax:
‘STATUS-OFF’
The CPI16 remembers the last Mode it was set for. Therefore, once a ’STATUS-OFF’
Send_Command is received, Default Mode becomes the power-up mode of the CPI16. It
is not necessary to send a ’STATUS-OFF’ Send_Command each time the device is powered. Once the CPI16 is programmed for Default Mode, it remains in that mode until a
’STATUS-ON’ Send_Command is received; see chart below.
Programming
STATUS-ON
Puts the NXPCPI16 in Discrete
Output Mode.
Inputs 1 - 8
Outputs 1 - 8
Inputs 9 - 16
Outputs 9 -16
It is not necessary to send a 'STATUS-OFF' Send_Command each time the device is
powered. Once the CPI16 is programmed for Default Mode, it will remain in Default
Mode until a 'STATUS-ON' Send_Command is received.
Syntax:
‘STATUS-ON’
The CPI16 remembers the last Mode it was set for. Therefore, once a ’STATUS-ON’
Send_Command is received, Discrete Output Mode becomes the power-up mode of the
CPI16. It is not necessary to send a ’STATUS-ON’ Send_Command each time the
device is powered. Once the CPI16 is programmed for Discrete Output Mode, it remains
in that mode until a ’STATUS-OFF’ Send_Command is received.; see chart below.
Inputs 1 - 8
Outputs 1 - 8
Inputs 9 - 16
Outputs 9 -16
Channels 1 - 8 (Push/Release only)
Channels 1 - 8 (On/Off only)
Channels 9 - 16 (Push/Release only)
Channels 9 - 16 (On/Off only)
Channels 1 - 8 (On/Push/Off/Release)
Channels 9 - 16 (On/Off only)
Channels 17 - 24 (On/Push/Off/Release)
Channels 25 - 32 (On/Off only)
NXP-CPI16 NetLinx Custom Panel Interface
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Programming
Send_Commands (Cont.)
QDIR
Controls the direction of rotation that
will correspond to a
positive level
increase on the
quadrature inputs.
The default rotation for both
quadrature inputs
is CW (clockwise).
QRATE
Sets the number of
pulses that must
be seen on the
quadrature input in
a given direction in
order to reach the
maximum attainable level.
Please note that the actual direction of rotation for a positive level change will depend
upon the phase relationship of the outputs on the quadrature encoder selected. If the
correct phase relationship is not met, it may be necessary to send a CCW (counterclockwise) QDIR command to get a positive level change for a clockwise rotation of the
encoder.
Syntax:
‘QDIR <input #> <direction or rotation for a positive level
change>’
Var iable s:
Where <input#>
1 - Quadrature Input 1
2 - Quadrature Input 2 and <direction of rotation for a positive level change>
CW - Clockwise rotation
CCW - Counter-Clockwise rotation
Example:
SEND_COMMAND ‘QDIR 2 CCW’
The quadrature input 2 is set for counter-clockwise rotation.
Syntax:
‘QRATE <input #> <# of pulses that represent the maximum level
allowed>’
Var iable s:
Where <input #>
1 - Quadrature Input 1
2 - Quadrature Input 2
and <# of pulses that represent the maximum level allowed>
0-32,767
This number should be calculated as follows:
Pulses = <pulses/rotation> x <# of rotations to reach maximum level>
The default for Pulses is 24.
Example:
Pulses/rotation = 50 (get from encoder data sheet)
# of rotations desired to reach max. level = 2
Therefore, the equation reads: 50 x 2 = 100.
This value will be used to scale the level reported to the NetLinx master as follows:
level change = (<maximum level> / <Pulses>) x <current pulse count>
Example:
SEND_COMMAND ‘QRATE 1 100’
The full range of quadrature input 1 is set for 100 pulses from the encoder.
The NXP-CPI16 uses input channels to report user input on the contacts or switches attached to the input
terminals. Output channels are used to turn on the lamp or LED display devices to indicate the button
status to the user.
The NXP-CPI16 default mode is STATUS-OFF, and in this mode the programmer cannot poll the NXPCPI16 to determine the state of the output channel. This is because in this mode the output and input
channels use the same number assignments. Inputs are sent by the NXP-CPI16 only as input changes.
When set for STATUS-ON mode the output channels are assigned a different channel number than the
input channels. This allows the programmer to monitor the status of an output channel. However the
channel offset must be accommodated in the programming code.
Statements such as this example can be used in a program.
IF[CPI16,25] (* output channel assigned to input channel 9 on P3 connector *)
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NXP-CPI16 NetLinx Custom Panel Interface
Programming
Each of the two 20-pin connectors is assigned a group of 8 input and output channels. The table below
shows the relation of input and output channels in the STATUS modes.
Input/Output STATUS Mode
Mode Connector STATUS-OFF (default) STATUS-ON
Inputs J3 Chan 1-8 Chan 1-8
J4 Chan 9-16 Chan 17-24
Outputs J3 Chan 1-8 Chan 9-16
J4 Chan 9-16 Chan 25-32
The NXP-CPI16 may be configured to default to STATUS-ON mode using the following method. The
commands can force a change to the mode no matter what default mode is configured for the device.
STATUS-ON Mode:
Remove R7 (1K ohm) resistor OR short across R8 for STATUS-ON mode. Firmware remains the same
for standard and STATUS-ON mode NXP-CPI16 units.
NXP-CPI16 NetLinx Custom Panel Interface
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Programming
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NXP-CPI16 NetLinx Custom Panel Interface
System Worksheets
Dealer ID Date
Dealer PO Number
Job SO Number
Description Serial Number
Rev Number Device Number
Header 1
Pin
Number
1
CH1
13
CH2
14
Out
In
2
Out
In
System Worksheets
CH3
CH4
CH5
CH6
CH7
CH8
15
16
17
18
19
20
10
11
12
Out
3
In
Out
4
In
Out
5
In
Out
6
In
7
Out
In
Out
8
In
9
Ground
Powe r
Ground
Ground
Header 2
NXP-CPI16 NetLinx Custom Panel Interface
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System Worksheets
CH9
CH10
CH11
CH12
CH13
CH14
13
14
15
16
17
18
1
Out
In
2
Out
In
Out
3
In
Out
4
In
Out
5
In
Out
6
In
CH15
CH16
19
20
10
11
12
7
Out
In
Out
8
In
9
Ground
Power
Ground
Ground
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NXP-CPI16 NetLinx Custom Panel Interface
System Worksheets
NXP-CPI16 NetLinx Custom Panel Interface
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2006 AMX. All rights reserved. AMX and the AMX logo are registered trademarks of AMX. AMX reserves the right to alter specifications without notice at any time.
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060-004-2394 8/06
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