Telemetry 1 I/O Interface

Transcription

1 Telemetry 1 I/O Interface User s Guide _C March 21, 2012

2 Table of Contents 1. Features Accessories Hardware Schematic Voltage Monitoring Port (DC In) Relay I/O Port Digital-In Port Digital-Out Ports Software... 7 Page 2

3 Telemetry 1 I/O Interface The Telemetry 1 I/O Interface is a general purpose digital I/O interface for the TransPort WR41, WR44, and WR44 R. Main features are: 1x Voltage monitoring port 1x Relay in/out port 1x Opto-isolated digital input port 4x Opto-isolated digital output ports Internal temperature monitoring 1. Features ANT. WWAN (Main) ANT. WLAN (Aux.) ANT. WWAN (Aux.) ANT. WLAN (Main) 11-58VDC 1.3A MAX A B A B + _ + _ + _ + _ MAIN AUX. ASY 0 DC IN RLY IN OUT 1 OUT 2 OUT 3 OUT 4 LAN3 LAN2 LAN1 LAN Voltage Monitoring Port - Measures the input voltage level and the internal temperature of the unit. It can also be used to provide a power source for the Digital-In port. 2. Relay I/O Port - The relay will make or break a circuit depending on the state of the digital in port. 3. Digital-In Port - A sensor such as a PIR or other switch / signal input device can be connected to this interface. 4. Digital-Out Ports - Can be programmed using Python to make or break a circuit. All the ports are classified as SELV ports which do not use or generate voltage greater then 60VDC, however, an isolation of a minimum of 1500Vrms is supported. 1.1 Accessories A 14-terminal female connector is included which is designed to help ease wiring, cable management, and installation. Wires are secured to the connector via screw-down slots (see image on next page), and the connector is affixed tightly to the TransPort unit by tapered terminals. Recommended wire size is AWG. Page 3

4 2. Hardware The following section outlines the specifications and configuration of the Telemetry 1 I/O Interface. 2.1 Schematic Page 4

5 2.2 Voltage Monitoring Port (DC In) Voltage supplied to this port is used to power an on-board micro-controller which measures the input voltage level at this port and the internal temperature of the unit. It can also be used to provide a power source for the Digital-In port. The maximum voltage that can be used is 24VDC. Note: Terminal A should be connected to the common reference (typically earth / ground). The only exception to this rule is for TransPort WR41 models that support the isolated wide range power supply input. In this case, the polarity of the supply voltage is non-critical. 2.3 Relay I/O Port The Relay I/O port is capable of carrying up to 5A at 30VDC resistive load. It is independent of the Voltage Monitoring Port. 2.4 Digital-In Port The Digital-In port has two modes of operation: Internal Power Mode - The voltage input from the Voltage Monitoring Port is used to power source a downstream passive device, for example, a micro-switch. The maximum voltage that can be sourced is 24VDC. External Power Mode - An external power source is used. The maximum voltage that can be supplied is 24VDC. The default mode of operation is Internal Power Mode. Schematics of how each mode operates are shown below. Page 5

6 2.4.1 Hardware Configuration The Digital-In port can be configured for either Internal or External Power Mode. Follow the steps below to configure the device accordingly. WARNING: Access to the inside of the unit is required. This should only be done by a qualified person in an ESD protected environment. 1. Disconnect all power connections from the unit. 2. Unscrew the screws on the bottom of the unit and remove the cover. 3. Configure the jumpers accordingly (see figure below). 4. Replace the cover and fasten with the screws. 5. Reconnect the power connections and power-up the unit. 2.5 Digital-Out Ports The Digital-Out ports present a transistor emitter and collector output pair. The diagram on the next page illustrates the typical application of this port. The maximum collector current is 12mA. Page 6

7 3. Software The Telemetry 1 I/O Interface is configured via CLI commands. These commands can be built into Python or Basic scripts to automate functionality, or, entered manually via the CLI or SMS. The command ANACONDA is the main command for the interface. Its usage is as follows: ANACONDA [-y 0 1] {-o pwm} [-r 0 1] Frequently used commands are as follows: ANACONDA ANACONDA? ANACONDA -y 0 ANACONDA -y 1 ANACONDA o1 1 ANACONDA -o1 pwm PWM PWM Current status of the interface Command usage Set the relay (-y) to open (default state) Set the relay (-y) to closed (switch something on) Turn on digital output 1 (-o1 = digital output 1, -o2 = digital output 2, etc) Set digital output 1 to PWM mode (PulseWave Modulation) Set PWM frequency and ratio (light runs at 10% brightness) Set PWM frequency and ratio (light runs at 100% brightness) Note: The above commands are case sensitive. Page 7

8 Copyright 2011 Digi International Inc. All rights reserved. Digi, Digi International, the Digi logo, a Digi International Company, the Digi web site, Digi Remote Manager, Digi TransPort, Digi TransPort WR, and Digi TransPort WR44 are trademarks or registered trademarks of Digi International, Inc. in the United States and other countries worldwide. All other trademarks are the property of their respective owners. Information in this document is subject to change without notice and does not represent a commitment on the part of Digi International. Digi provides this document as is, without warranty of any kind, either expressed or implied, including, but not limited to, the implied warranties of fitness or merchantability for a particular purpose. Digi may make improvements and/or changes in this manual or in the product(s) and/or the program(s) described in this manual at any time. This product could include technical inaccuracies or typographical errors. Changes are periodically made to the information herein; these changes may be incorporated in new editions of the publication. No part of this document covered by copyright may be reproduced or copied in any form or by any means graphic, electronic, or mechanical, including photocopying, recording, taping, or information and retrieval systems without written permission of Digi International. Digi International Bren Road East Minnetonka, MN or