AMX NXC-COM2 specifications B9MOFF, B9MON, Chardm, Ctspshoff, GET Baud, Hsoff, Hson

Installation Guide

NXC-COM2Dual COM Port Card, 2 RS-232/422/485

NetLinx Control Cards and NetModules

NetLinx Control Cards can be installed in either the NXF CardFrame, NI-4000, or NetModules. For detailed information on the cards, refer to the NetLinx CardFrame, Control Cards, and NetModules Instruction Manual available on-line via www.amx.com.

ICSNET Status LED

LED 1

LED 4

FIG. 1 NXC-COM2 Dual COM Port Control card

NXC-COM2 Specifications

The NXC-COM2 Dual COM Port Control Card provides two RS-232/422/485 control ports and LED feedback for remote sources connected to the NetLinx CardFrame, NI-4000, or NetModule:

NXC-COM2 (FG 2022) Specifications

Power Requirements:	140 mA @ 12 VDC
Operation:	Data 1-2: Two RS-232/422/485 control ports, supports
	XON/XOFF, CTS/RTS
Status LEDs	• Red LEDs show TX (transmit) data activity
(2 per channel):	• Yellow LEDs show RX (receive) data activity
	- LED 1: CH1 TX (red)
	- LED 2: CH1 RX (yellow)
	- LED 3: CH2 TX (red)
	- LED 4: CH2 RX (yellow)
	• Green ICSP status LED (located on the board):
	- On = card is not in communication with the Master.
	- Blinks (1-second intervals) during normal operation.
Connections/wiring:	Two 10-pin 3.5 mm captive-screw terminals
DEVICE_ID:	$0107

NXC-COM2 Pinouts and Wiring Information:

NXC-COM2 Pinouts			NXC-COM2 Wiring Configuration
Pin	Signal	Function	RS-232	RS-422	RS-485
1	GND	Signal ground	X	X
2	RXD1	Receive data	X
3	TXD1	Transmit data	X
4	CTS1	Clear to send	X
5	RTS1	Request to send	X
6	TX1+	Transmit data		X	X (strap to pin 8)
7	TX1-	Transmit data		X	X (strap to pin 9)
8	RX1+	Receive data		X	X (strap to pin 6)
9	RX1-	Receive data		X	X (strap to pin 7)
10	+12 VDC	Power	Optional	Optional
11	GND	Signal ground	X	X
12	RXD2	Receive data	X
13	TXD2	Transmit data	X
14	CTS2	Clear to send	X
15	RTS2	Request to send	X
16	TX2+	Transmit data		X	X (strap to pin 18)
17	TX2-	Transmit data		X	X (strap to pin 19)
18	RX2+	Receive data		X	X (strap to pin 16)
19	RX2-	Receive data		X	X (strap to pin 17)
20	+12 VDC	Power	Optional	Optional

NXC-COM2 Channel Assignment:

Channel 255 is the CTS (Clear To Send) push channel. It reflects the state of the CTS input if a 'CTSPSH' command was sent to the device.

NXC-COM2 Programming Information:

NXC-COM2 Send_Commands

B9MOFF	Syntax:
Disable 9-bit in	SEND_COMMAND <DEV>,"'B9MOFF'"
232/422/455 mode.	Example:
This command works in	SEND_COMMAND SOMEDEVICE_1,"'B9MOFF'"
conjunction with the	Sets the port settings on SOMEDEVICE to match the port's
B9MON command.	configuration settings.
B9MON	Syntax:
Enable 9-bit in	SEND_COMMAND <DEV>,"'B9MON'"
232/422/455 mode.	Example:
This command works in	SEND_COMMAND SOMEDEVICE_1,"'B9MON'"
conjunction with the	Resets the SOMEDEVICE port's communication parameters to
B9MOFF command.	nine data bits and one stop bit.
CHARD	Syntax:
Set the delay time	SEND_COMMAND <DEV>,"'CHARD-<Time>'"
between all transmitted	time: 0 - 255. Measured in 100 microsecond increments.
characters to the value	Example:
specified (in 100 micro-	SEND_COMMAND RS232_1,"'CHARD-10'"
second increments).
	Sets a 1-millisecond delay between all transmitted characters.
CHARDM	Syntax:
Set the delay time	SEND_COMMAND <DEV>,"'CHARDM-<Time>'"
between all transmitted	time: 0 - 255. Measured in 1 millisecond increments.
characters to the value	Example:
specified	SEND_COMMAND RS232_1,"'CHARDM10'"
(in 1 millisecond
	Sets a 10-millisecond delay between all transmitted
increments).
	characters.
CTSPSH	If Clear To Send (CTS) is set high, then channel 255 is On.
Enable Pushes,	Syntax:
Releases, and status	SEND_COMMAND <DEV>,"'CTSPSH'"
information to be reported	Example:
via channel 255 using the	SEND_COMMAND RS232_1,"'CTSPSH'"
CTS hardware handshake
	Sets the RS232_1 port to detect changes on the CTS input.
input.
CTSPSHOFF	Syntax:
Disable Pushes,	SEND_COMMAND <DEV>,"'CTPSH OFF'"
Releases, and Status	Example:
information to be reported	SEND_COMMAND RS232_1,"'CTSPSH OFF'"
via channel 255.	Disables the RS232_1 port to detect changes on the CTS
	input.
GET BAUD	Syntax:
Get the RS-232/422/485	SEND_COMMAND <DEV>,"'GET BAUD'"
port’s current	Example:
communication parame-	SEND_COMMAND RS232_1,"'GET BAUD'"
ters.	Device responds with:
Device sends the
	<port #>,<baud>,<parity>,<data>,<stop>
response out the Master
	485 <ENABLED DISABLED>
program port.
HSOFF	Syntax:
Disable hardware	SEND_COMMAND <DEV>,"'HSOFF'"
handshaking (default).	Example:
	SEND_COMMAND RS232_1,"'HSOFF'"
	Disables hardware handshaking on the RS232_1 device.
HSON	Syntax:
Enable RTS	SEND_COMMAND <DEV>,"'HSON'"
(ready-to-send) and CTS	Example:
(clear-to-send) hardware	SEND_COMMAND RS232_1,"'HSON'
handshaking.	Enables hardware handshaking on the RS232_1 device.
RXCLR	Syntax:
Clear all characters in the	SEND_COMMAND <DEV>,"'RXCLR'"
receive buffer waiting to	Example:
be sent to the Master.	SEND_COMMAND RS232_1,"'RXCLR'"
	Clears all characters in the RS232_1 device's receive buffer.
RXOFF	Syntax:
Disable the transmission	SEND_COMMAND <DEV>,"'RXOFF'"
of incoming received	Example:
characters to the Master	SEND_COMMAND RS232_1,"'RXOFF'"
(default).	Stops the RS232_1 device from transmitting received
	characters to the Master.