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SCOM-100, User guide 2 SCOM-100 Alarming & remote control unit User guide Manual version: 1.04, 2/2007 Firmware version: 1.04 Disclaimer While every effort has been made to ensure that the information included in this guide is accurate and complete, no liability can be accepted for any errors or omissions. Infinite Ltd reserves the right to change the specifications of the hardware and software described in this guide at any time without prior notice. No
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SCOM-100, User guide 3 Contents 1. Device overview 1.1 Connections 1.2 LED indications 2. Wiring 2.1 Power supply 2.2 Digital inputs 2.3 Digital outputs 2.4 Analog inputs 2.4.1 Analog input 1 2.4.2 Analog input 2 2.5 I/O expansion power supply 2.6 GSM antenna 2.7 Microphone 3. Getting started 3.1 Preparing a SIM card 3.2 Installing the SIM card 3.3 First power up & factory settings 4. Device operation 4.1 SMS commands 4.2 Naming the unit 4.3 Configuring a digital input fo
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SCOM-100, User guide 4 4.4.5 Setting a digital output after a delay 4.4.6 Resetting a digital output after a delay 4.4.7 Digital output time based scheduling 4.4.8 Clearing the digital output configuration 4.5 Analog signal alarming 4.5.1 Analog input configuration 4.5.2 Setting alarm message’s texts for analog inputs 4.5.3 Clearing the analog input configuration 4.6 Special I/O Functions 4.6.1 ON/OFF and PID control 5. User administration 5.1 Create a new user 5.2 Change user c
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SCOM-100, User guide 5 6.5 Setting date & time 6.6 Setting a GSM PIN 7. Monitoring capabilities 7.1 Monitoring commands 7.2.1 Using the HyperTerminal for configuration 7.2.2 Using the SCOM-100 Configurator for configuration 8. Using the microphone input 9. Appendix 9.1 Command reference 9.1.1 General parameter settings 9.1.2 User configuration 9.1.3 Output control & configuration 9.1.4 Input configuration 9.1.5 I/O Functions 9.1.6 RTC & Time scheduling 9.1.7 Monitoring commands
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SCOM-100, User guide 6 1. Device overview 1.1 Connections 1: Start up button 2: SIM cardholder 3: GSM antenna connector (SMA jack) 4. Microphone connector 5: Serial port RS232 (RJ-42 connector) 6: Power supply connector 7: I/O expansion connector (6 pin modular jack) 8: Analog inputs screw terminals 9: Digital inputs screw terminals 10: DIN rail snap 11: Digital outputs screw terminals
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SCOM-100, User guide 7 1.2 LED indications 1: Power indicator: Turns on after power up. 2: Four LEDs indicating the digital output states. 3: Turns on while sending or receiving an SMS. 4: Turns on if an error occurs during operation. See sections 9.4 and 9.5 for details. 5: Monitors the device status (RUN/ MONITOR/ STOP). See sections 6.1 and 9.5 for details. 6. Flashes during device start up. Remains on if the device is ready for operation. Turns off if one or more operatin
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SCOM-100, User guide 8 2. Wiring SCOM-100 is a simple device, not requiring special technical background for configuration and operation. However an electrical technician should undertake the installation of the device. 2.1 Power supply Power supply requirements are: SCOM-100-12: 12VDC +/-15% SCOM-100-24: 24VDC +/-15% A low ripple power supply output is recommended. Output voltage stabilization is not required. See section 9.3.1 for details.
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SCOM-100, User guide 9 2.2. Digital inputs SCOM-100 has 4 built in digital inputs, which can be expanded by the DIO-42 expansion modules. The digital inputs are wired by means of screw terminals. The digital inputs can be driven either by switches or transistors (open collector stages). Transducers with push-pull output are also applicable. Note: Output voltages higher than +5V or negative voltages (lower than GND) will be clamped from the comparator input protection zener. Th
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SCOM-100, User guide 10 2.3 Digital outputs SCOM-100 has 4 built in digital outputs, which can be expanded by the DIO-42 expansion modules. The digital outputs are wired by means of screw terminals. Each output has a normally open contact power relay. Voltage Current Mode 250VAC 10A AC1 250VAC 1A AC2,3 150VDC 0.5A DC It is recommended to use external power relays to drive inductive or capacitive loads demanding more than 0.5A.
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SCOM-100, User guide 11 2.4 Analog inputs SCOM-100 has 2 built in analog inputs (AI1, AI2). A1 is designed for voltage input and A2 for current input. 2.4.1 Analog input 1 Analog input 1 is a voltage input with two wiring options. Wiring option: A1A The input voltage range for this wiring option is 0-1VDC. The input resistance is 2K. The input voltage range is converted internally to a digital raw range of 0-4095. The circuit displayed on the left side of the page uses a mo
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SCOM-100, User guide 12 The circuit displayed on the center uses an external shunt resistor (~51.3 Ω) wired parallel to the input in order to measure current signals (e.g. 0-20/4-20mA). The circuit displayed on the right side of the page uses an external resistor (Rx) to measure DC voltage (Vx). Rx and Rin (2K) form a voltage divider. The following table illustrates the applicable resistor Rx values for different DC voltages: Vx Rx Vin 0..1V 0 0 -1V 0..5V 8K, 1/4W 0 -1V 0..30V 58
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SCOM-100, User guide 13 Wiring option: A1B Wiring option A1B is designed for 0..10VDC signal input through an internal 18K & 2K voltage divider. The input resistance is 20K.
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SCOM-100, User guide 14 2.4.2 Analog input 2 Analog input 2 is designed as a current input. It can be used in conjunction with industry standard current loop transducers & sensors. Input impedance is 50 Ω. The 0-20mA input is converted internally to a digital raw range of 0-4095. Note: Applying a voltage source to the current input AI2 may damage the internal 50 Ω input resistor and respectively the entire input circuit.
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SCOM-100, User guide 15 2.5 I/O expansion power supply SCOM-100 has two ways to provide power supply for the I/O expansion units. Bridge Vcc to Vex on the main SCOM-100 unit to power a limited number of I/O expansion units (up to 4), as shown below. (Power is then wired through the 6th pin on to the modular I/O expansion connector). If the number of expansion modules is more than 4, an external power supply source must be connected to the power connector screw terminals of each
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SCOM-100, User guide 16 Note: The Vex pin must not be connected when an external power source is connected on the expansion modules because the main SCO-100 unit will be damaged.
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SCOM-100, User guide 17 2.6 GSM antenna An external GSM antenna should be used for locations with weak signal strength. SCOM-100 utilizes an SMA plug connector to connect a GSM antenna. The GSM antenna must be of appropriate frequency to cover the frequency band of your GSM provider’s network. 2.7 Microphone A two-pin connector is provided to connect an electret type microphone.
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SCOM-100, User guide 18 3. Getting started 3.1 Preparing a SIM card Before installing the SIM card, use your phone to: 1. Clear the PIN code (no PIN needed). 2. Enter your name and phone number in the first place of the phonebook directory of the SIM card. Note: You can alternatively power up the unit without a SIM card and set the PIN number using a terminal program on a PC, or you can set a PIN in later configuration stages. 3.2 Installing the SIM card Note: Always remove or inst
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SCOM-100, User guide 19 Insert the card into the tray and slide the tray with the card faced down into the cardholder. 3.3 First power up & factory settings Power up the unit and hold the startup button pressed until the ready LED starts blinking rapidly. The unit executes the startup procedure setting all parameters to the factory defaults, reads the SIM card’s phonebook entry, enters the RUN (Control) mode and sends a HELLO SMS message to the mobile phone number that was fou
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SCOM-100, User guide 20 4. Device operation 4.1 SMS commands The SCOM-100 unit accepts text SMS commands to configure operational parameters, control the unit’s operation modes, and control the unit’s outputs. Several commands can be packed in one SMS message. An SMS command has the following structure: XXXX,A..A,..,..,Z..Z XXXX: Command identification number 0000- 9999 A..A, Z..Z: Command parameters The comma character (‘,’) is used as a separator in the command structure. T
