Operation/Reference Guide NXP-CPI16 NetLinx Custom Panel Interface Cu st o m P a n e l I n t er f a c e s L as t R e vi s ed: 1 /1 3 /20 0 9
AMX Limited Warranty and Disclaimer AMX warrants its products to be free of defects in material and workmanship under normal use for three (3) years from the date of purchase from AMX, with the following exceptions: • Electroluminescent and LCD Control Panels are warranted for three (3) years, except for the display and touch overlay components that are warranted for a period of one (1) year.
Table of Contents Table of Contents Product Information ...........................................................................................1 Specifications............................................................................................................ 2 Installation ..........................................................................................................3 Input and Output Connectors ...................................................................................
Product Information 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.
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.
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.
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.
Programming 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.
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.
Send_Commands (Cont.) LVL_SZ The default is byte (8-bits), which yields a range of 0 - 255 for the level value. Sets the size (data type) of the value that will be used by the NXP-CPI16 when receiving and sending LEVEL messages.
Please note that the actual direction of rotation for a positive level change will depend Controls the direc- upon the phase relationship of the outputs on the quadrature encoder selected. If the tion of rotation that correct phase relationship is not met, it may be necessary to send a CCW (counterwill correspond to a clockwise) QDIR command to get a positive level change for a clockwise rotation of the encoder. positive level QDIR increase on the quadrature inputs.
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 J3 Chan 1-8 Chan 9-16 J4 Chan 9-16 Chan 25-32 Outputs The NXP-CPI16 may be configured to default to STATUS-ON mode using the following method.
10 NXP-CPI16 NetLinx Custom Panel Interface
System Worksheets System Worksheets Dealer ID Date Dealer PO Number Job SO Number Description Serial Number Rev Number Device Number Header 1 CH1 Pin Number 1 CH2 CH3 13 In 2 Out 14 In 3 Out 15 4 CH4 Out In Out 16 In 5 Out 17 In CH5 6 CH6 18 7 CH7 19 8 CH8 Out In Out In Out 20 In 9 Ground 10 Power 11 Ground 12 Ground Header 2 NXP-CPI16 NetLinx Custom Panel Interface 11
CH9 CH10 CH11 1 13 In 2 Out 14 In 3 Out 15 4 CH12 Out In Out 16 In 5 Out 17 In CH13 6 CH14 18 7 CH15 19 8 CH16 Out In Out In Out 20 In 9 Ground 10 Power 11 Ground 12 Ground
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