User manual CRESTRON CNXCOM-2

[. . . ] CRESTRON Contents CNX RS-232/422/485 Expansion Card: CNXCOM-2 1 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Physical Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Leading Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] 8123 CNX RS-232/422/485 Expansion Card: CNXCOM-2 · 3 CRESTRON A common application is to use a three-wire null modem serial cable to communicate with a PC, shown below. Since the pinout on the CNXCOM-2 is nonstandard, the card should not be plugged into the PC directly. The pinout in this illustration emulates the IBM PC AT connector except for the RS-422 signals on pins 1, 4, 6, and 9. Three-Wire Null Modem Serial Cable RXD 2 TO CNXCOM-2 TXD 3 GND 5 RED WHITE BLACK 3 TXD 2 RXD 5 GND TO SERIAL DEVICE 9-PIN FEMALE "D" CONNECTOR 9-PIN FEMALE "D" CONNECTOR NOTE: To support RS-485, tie pin 1 (RXD-) to pin 9 (TXD-) and pin 4 (TXD+) to pin 6 (RXD+) in the cable (refer to the table after this note). COM Pinout to RS-485 Bus COM (DB9) CONNECTOR Tie Pins 1 & 9 Tie Pins 4 & 6 Pin 5 RS-485 BUS + G Programming with SIMPLTM Windows® ® SIMPL (Symbol Intensive Master Programming Language) is an easy-to-use programming language that is completely integrated and compatible with all Crestron system hardware. The objects that are used in SIMPL are called symbols. SIMPL Windows offers drag and drop functionality in a familiar Windows® environment. SIMPL Windows is Crestron Electronics' software for programming Crestron control systems. It provides a well-designed graphical environment with a number of workspaces (i. e. , windows) in which a programmer can select, configure, program, test, and monitor a Crestron control system. The next two subsections describe a sample SIMPL Windows program that utilizes the CNXCOM-2. The first subsection details how the sample program works with a textual description and block diagram. The second subsection provides a broad description of how to actually create the SIMPL Windows program. NOTE: The following description assumes that the reader has knowledge of SIMPL Windows. If not, please refer to the extensive help information provided with the software. NOTE: There is no need to recreate the sample SIMPL Windows program. A copy of this program is available from Crestron's ControlCD (version 4. 03 and later). Search for the CNXCOM-2. SMW project in the SIMPL Windows Example Base. 4 · CNX RS-232/422/485 Expansion Card: CNXCOM-2 Operations Guide - DOC. 8123 CRESTRON How the Program Works A basic CNXCOM-2 SIMPL program is shown on the next page in block diagram form. For this example, the CNXCOM-2 occupies slot #1 of a CNMSX-PRO. Assume that a touchpanel is used to control the state of Zone 1 in a lighting system. Zone 1 can either be turned ON or OFF or can be ramped UP or DOWN. Block Diagram of CNXCOM-2 To turn the lights on, 9 bytes are sent (\x02Z-01-ON\x03). When join #1 on the touchpanel is pressed, the signal "Lights-Z1-On" goes high. When this signal goes high, the data is sent out the port to the lighting system. A similar approach is taken for "Lights-Z1-Off". [. . . ] No merchandise may be returned for credit, exchange, or service without prior authorization from CRESTRON. To obtain warranty service for CRESTRON products, contact the factory and request an RMA (Return Merchandise Authorization) number. Enclose a note specifying the nature of the problem, name and phone number of contact person, RMA number, and return address. Products may be returned for credit, exchange, or service with a CRESTRON Return Merchandise Authorization (RMA) number. [. . . ]