Infinite Peripherals SCOM-100 manual Analog inputs

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SCOM-100, User guide

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 monolithic semiconductor sensor (AD592) for temperature measurement. This sensor acts as a high impedance temperature dependent current source of 1µA/K. The nominal current output is 298µA at 25°C. The voltage drop on the analog input resistor (2K) is 496mV at -25°C and 756mV at 105°C. The SCOM-100 power supply (Vcc) can be used for the sensor’s excitation.

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Contents Page Disclaimer Contents Page Page Connections Device overviewLED indications Power supply WiringDigital inputs AC1 Digital outputsAnalog input Analog inputsVin SCOM-100, User guide Analog input I/O expansion power supply SCOM-100, User guide Microphone GSM antennaPreparing a SIM card Installing the SIM cardGetting started First power up & factory settings XXXX,A..A,..,..,Z..Z SMS commandsDevice operation Naming the unit1100,m,n,s,a,d Configuring a digital input for alarmingMy SCOM-100 Door contact 1100,0,1,Door contact,3,301101,m,n,ID1,ID2 Setting alarm message’s texts0630,ID,s My SCOM-100 0630,1,Door is opened 0630,2,Door is closed0630,1,Door is opened 0630,2,Door is closed 1101,0,1,2,1 My SCOM-100 Door contact Door is opened1110,m,n Clearing the digital input configurationDoor contact Door is closed 1000,0,2 Setting a digital outputControlling the digital outputs 1000,m,n1071,0,2 Configuring an output as a closed contact1001,0,2 1071,m,nPulse digital output 1070,m,n1010,0,2,25 Setting a digital output after a delay1010,m,n,s 1020,m,n,h,mn Resetting a digital output after a delay1021,m,n,h,mn 1040,m,n,mon,moff Digital output time based scheduling1700,ID,d,P1B-P1D,P2B-P2D,…,P8B-P8D Time schedule program1701,ID,P 1700,1,0,800-120,1130-1001645-1801030,m,n,ID 1090,m,n,ID Clearing the digital output configuration1701,3,50 1200,m,n,s,SSL,SSH,SCL,SCH,ALL,ALH,u,d Analog signal alarmingAnalog input configuration ALH SCOM-100, User guide 1201,m,n,ID1,ID2 Setting alarm message’s texts for analog inputs1200,0,2,Pressure,819,4095,0,10000,2500 8500,mBar,15 1800,d Clearing the analog input configurationSetting the analog inputs alarm deadband 1210,m,n1250,id,m,n,m1,n1,sp,g,it,dt,ct,h Special I/O Functions1 ON/OFF and PID control 1251,id,s 1255,id,sp1260,id 1252,id,m,n1253,id 0500,id,n,p,c1,c2,c3 User administrationCreate a new user Delete a user Change user configurationDefining specific alarm recipients Set a DI alarm recipientClear AI alarm recipients Set an AI alarm recipientClear DI alarm recipients Monitor command Device status & mode controlsSetting the device status RUN Control commandSend acknowledgement SMS Controlling the device statusControlling the device response 1105,m,n,vResponse format Setting up an SMS counterMerge concurrent alarms Setting a GSM PIN Setting date and timeUNITMy SCOM-100 Monitoring commandsMonitoring capabilities 5100Using the Hyperterminal for configuration Connecting a PCSCOM-100, User guide SCOM-100, User guide Atsms=1100,0,1,Door contact,3,30 Using the Scom Configurator for configurationAte1 Using the microphone input Appendix Command referenceGeneral parameter settings SMS User configuration Output control & configuration Input configuration 5 I/O Functions RTC & Time scheduling Monitoring commands AI/DI/AO/DO Troubleshooting Page Main unit Technical specificationsGE-DIO-42 Digital I/O Expansion module Error handling LED Status LED indicationsGE-DIO-42 Digital I/O expansion Default parameter values Factory settingsSetting an I/O expansion module address Dip switch settings Module number m PIN RS232C connector layout