ELECTRONIC ENERGY CONTROL, INC.
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 ADC-16 ANALOG TO DIGITAL CONVERTER

ADC-16 DESCRIPTION

The ADC-16 A to D converter provides two separate 8 channel analog input ports which allow input of a wide variety of analog information into a conventional PC. Applications include temperature input (requires TE-8 temperature input conversion and sensors) and input of energy usage or electrical demand (requires watt transducer & current transformer). Other uses include input of pressure, light, voltage, weight, potentiometer movement, strain gauges, etc. (minimal external hardware required). The ADC-16 is very useful as a Data Logger or as an Electronic Chart Recorder. The data logging software for Windows which is provided with the ADC-16, allows the user to export data files into Excel or other programs to generate spreadsheets, charts, graphs etc. The ADC-16 may be used in battery management systems to monitor and control battery voltage levels and system operating characteristics. The ADC-16 also has many applications in the home automation field. Connection of a modem will allow these functions to be monitored from a remote site via telephone line (the EX-16 may be used for remote relay control). The A/D output is represented as a single byte number (0 to 255 decimal) with 8 bit resolution or in two byte format (0 to 1023 decimal) with 10 bit resolution. Voltage inputs of 5 millivolts or higher per increment require no additional hardware. The VA-1 or VA-2 Precision Instrumentation Amp may be used to input lower millivolt signal levels, for input scaling or to input differential signals. Each of the two analog input ports has an adjustable voltage reference input which allows the analog voltage input level to be adjusted. The default level is 0 to 5 volts DC single ended (20 millivolt resolution, 8 bit). The addition of an external voltage reference will allow greater resolution and lower voltage input levels. EXAMPLE: A 1.2 volt reference will provide a voltage input level of 0 to 1.2 volts (5 millivolt resolution, 8 bit). Inputs can be ratiometric or standard volt. The ADC-16 A/D converter provides an output expansion port to control up to 112 relays (using EX-16 expansion cards) and an input expansion port which allows for expansion to 32 analog inputs or an additional 128 status (digital) inputs (using AD-16 or ST-32 expansion card). The TE-8 temperature input conversion may be used for temperature input.
ADC-16 Photo (111 KByte file)
ADC-4 A to D CONVERTER...The ADC-4 provides four 12 bit analog inputs with an optional 8 channel port #2 of 8 or 10 bit resolution. The ADC-4 features the Siemens 12 bit A/D converter IC with an on-chip micro controller and memory for autocalibration. Total unadjusted error is plus or minus 1/2 LSB with no missing codes. The ADC-4 is identical to the ADC-16 in physical size & layout, I/O functions and expansion capability and provides both the relay expansion and input expansion ports. Analog port #2 may be converted for temperature input using the TE-8. Port #1 is used for connection of the four 12 bit inputs via a sheilded DB-9 connector. The A/D output is represented in two byte format (0 to 4095 decimal) in 4,096 increments. Voltage input range is fixed at 0 to 5 VDC single ended. Use the VA-1 or VA-2 Precision Instrumentation Amplifier for lower input voltage ranges, input scaling or for differential inputs.
ADC-4 Photo (50 KByte file)
FEATURES
ACCESSORIES FOR USE WITH THE ADC-4 & ADC-16
AD-16 & AD-32 Analog Expansion Cards
ST-32 Status Expansion Card
EX-16 & EX-32 Relay Expansion Cards
TE-8 Temperature Input Conversion
VA-1/VA-2 Precision Instrumentation Amplifiers
PS-4 Port Selecter
CH series Card Racks
SP-1 Power Protector & TranZorbs
Relay Cards and Relay Driver Cards
Power Relays and Relay Modules
Ribbon Cable to Terminal Block Adapters
Connector Cables and Power Supplies
Serial Interface Cards and Converters
Enclosures and Mounting Hardware

SPECIFICATIONS
Designed for continuous 24 hour industrial operation.

Baud rate is selectable (50 to 19,200 baud). Default protocol is 8 data bits, 1 or 2 stop bits and no parity. Jumpers may be used to select other standard protocols. Maximum sampling rate is 1,700 samples per second (single channel at 19,200 baud).

Two 8 channel analog input ports are provided. Inputs are expandable to 48 analog inputs (using the AD-16 or AD-32 analog expansion cards) or up to 128 status inputs (using ST-32 status input expansion cards). Up to 112 relays may be controlled (using EX-16 relay expansion cards).

Powered from any power supply with a voltage output of 9 to 14 volts DC. Requires 300 milliamp (specify PS-GP-1 wall adapter for single ADC-16).

Analog input connections use a standard 10 contact ribbon cable header socket (.1" centers). A terminal block is provided for power supply and serial I/O connections.

The ADC-16 serial interface meets or exceeds the EIA standard for RS-232C data communications.

Dimensions...5" by 7" (rack mountable with other 5" by 7" cards using the CH series card holder racks).

CONTROL SOFTWARE
For the ADC-16 Analog to Digital Converter
The analog information is transmitted from the ADC-16 upon request from the computer. To initiate the sequence, the A/D channel code must be transmited by the computer. This is accomplished by using the command... PRINT #1, CHR$(X);
(where X + 1 = channel #) channel 1 = 0, channel 2 = 1, etc. This command is then repeated (except when sequencing) to initiate transmission from the ADC-16. The ADC-16 will then transmit a number from 0 to 255 to represent the analog information (0 = 0 voltage, 255 = full scale voltage, 128 = half scale voltage, etc.). The ADC-16 recognizes only the control codes 0 to 15 (or 0 to 31 with the AD-16 or ST-32 connected). The ADC-16 passes all higher control codes to the EX-16 (if attached) for relay functions.

SAMPLE PROGRAM
The following program will continuously display the analog information from each of the 16 analog channels. The screen is updated continuously so that new analog information is displayed at intervals only a few milliseconds apart. (GW Basic or QuickBasic for IBM & compatibles)
 10 CLS
 20 OPEN "COM1:9600,N,8,2,DS,CD,CS" AS #1  '...configure serial port
 30 FOR X=0 TO 8
 40 IF X=8 THEN Z=0:GOTO 60                '...synchronize
 50 Z=X
 60 PRINT #1,CHR$(Z);                      '...transmit channel code*
 70 A$(X) = INPUT$(1,1)                    '...receive byte from ADC
 80 NEXT X
 90 LOCATE 1,1                             '...position cursor 
100 FOR X=1 TO 8
110 PRINT ASC(A$(X));"  "                  '...print data on screen
120 NEXT X
130 GOTO 30
*Please note that the semicolon is required to suppress the carrage return and line feed.

More detailed information is provided with the ADC-16 documentation.

ADC-16 TEMPERATURE INTERFACE
The ADC-16 Temperature Interface has proven to be an extremely reliable industrial grade temperature interface for connection to RS-232, RS-422, RS-485 or USB. It's low cost and proven performance make it the ideal choice for a wide variety of temperature monitoring applications and is for use with all types of computers which provide an RS-232, RS-422, RS-485 or USB connection.

The following temperature interface products are available:
ADC-8/E Analog to Digital Converter...(provides 8 temperature inputs)*
ADC-16/E/F Analog to Digital Converter...(provides 16 temperature inputs)*
ADC-16/E/F with the AD-16/E/F Analog Expansion Card...(provides 32 temperature inputs)*
ADC-16/E/F with the AD-32/E2/F2 Analog Expansion Card...(provides 48 temperature inputs)*

*the above products are available with an extended temperature range by adding the 10 bit /G and /H options and/or extended range sensors (see below). The E and F options for the ADC-16 and AD-16 specify that the TE-8 temperature conversion is added in groups of 8 temperature inputs. The E option indicates that the TE-8 temperature input conversion is added to the first 8 channels on the A/D card. The F option indicates that the TE-8 temperature input conversion is added to the second 8 channels on the A/D card.
The TE-8 temperature input conversion provides (8) temperature sensing inputs (with temperature sensors) for use with the ADC-8, ADC-16 Analog to Digital Converter the ADC-4 Analog to Digital Converter or the AD-16 Analog Expansion Card. A terminal block is provided for connections to the temperature sensors using a single twisted pair wire. The temperature sensors may be located up to several thousand feet from the TE-8. The TE-8 connects directly to the analog input port with the ribbon cable provided (four TE-8's will provide 32 temperature inputs with an AD-16 expansion card). Includes (8) precision temperature sensors, (8) trimmer potentimeters (for manual calibration, but not required), resistors, capacitors and voltage reference (if the TE-8 is purchased as a kit, the components must be installed on the ADC-16 or AD-16 cards). The temperature sensors are linear temperature sensing IC's supplied in a TO-92 plastic package. The ADC-16 or AD-16/32 may be ordered with the TE-8 installed by adding the suffix /E or /F (see options) or the ADC-16 may be shipped back to us for installation of the TE-8 at no charge. Temperature range is -40 degrees F to 146 degrees F (-40C to 64C) when used with 8 bit converters or -40 degrees F to 212 degrees F (-40C to 100C) when used with 10 or 12 bit converters. Extended range sensors are also available with a temperature range of -67 degrees F to 302 degrees F (-55C to 150C). Accurate to 1 degree F over the entire temperature range. Includes technical reference, software examples and ADC-16 Data Acquisition Software for Windows which allows you to label, display temperatures, log temperatures and perform other functions (for use with Windows versions 3.0, 3.1, Windows 95, 98, 2000, ME, NT, XP and Vista). Software is also provided that allow the temperature inputs and/or relays to be controlled or monitored over a network (LAN, Internet, etc.).TE-8 ribbon cable length is 15". Dimensions are 1½" by 3".
OPTIONS
Options for the ADC-4, ADC-8 & ADC-16 may be ordered by adding the proper suffix. The following options may be ordered for the Analog to Digital Converters:

/A422 or /A485 OPTION: The serial I/O is configured for the RS-422 or RS-485 interface, allowing up to a 4,000 foot distance between the PC and ADC-16 (for use with the ADC-4, ADC-8 & ADC-16).

/E OPTION: Port #1 is configured for temperature input (-40 degrees to 146 degrees F) using the TE-8 temperature input conversion (for use with the ADC-8, ADC-16 & AD-16). Includes 8 temperature sensors, 8 trimmers and terminal block.

/F OPTION: Port #2 is configured for temperature input (same as above, for use with the ADC-4/I, ADC-16 & AD-16).

/G OPTION: Port #1 is configured for 10 bit resolution (for use with the ADC-8, ADC-16 & AD-16). 10 bit resolution will allow you to have up to 1,024 increments in the range of measurement.

/H OPTION: Port #2 is configured for 10 bit resolution (for use with the ADC-4/I, ADC-16 & AD-16).

/I OPTION: Optional port #2, 8 channel analog input port for use with ADC-4.

/Z OPTION: This option is for use with customized hardware.

PLEASE NOTE: The ADC-4, ADC-8 & ADC-16 require a power supply, connecter cable and terminal block to function. Select the power supply and terminal block for your application and the proper cable for your computer. The EX-16, AD-16 and ST-32 expansion cards require the RC-20 ribbon connecter (sold separately) for connection to the A/D converter.

To order the standard ADC-16 analog to digital converter, specify part number ADC-16. The standard ADC-16 will be supplied with an RS-232 serial interface.

To order any of the above options, add the proper suffix to the part number. Any number of options may be included by adding the proper suffix to the part number.

EXAMPLE:
use ADC-8/E ... to order the ADC-8 with port #1 configured for temperature input.
use ADC-4/A/I ... to order the ADC-4 with RS-422 and the optional 8 bit port #2.
use ADC-16/A/E/F ... to order RS-422 with ports #1 & #2 configured for temperature input.
PAC-B ANALOG TO DIGITAL PACKAGE...The ADC-16 analog to digital package is an assembled package which includes the EN-A 7½" by 10" plastic enclosure, the ADC-16 analog to digital converter, (1) RCT-16 terminal block, (1) power supply and (1) connecter cable. The serial cable supplied will be the CC-DB25S unless specified otherwise.

PAC-B Photo (47 KByte file)

WHAT IS RESOLUTION?

 The selection of the analog resolution needed for a particular application is generally based upon the accuracy of the sensor or device connected to the analog input.
An 8 bit analog to digital converter will divide the measurement range into 256 increments. A 10 bit analog to digital converter will divide the measurement range into 1,024 increments, while a 12 bit converter will divide the measurement range into 4,096 increments.
Since most temperature sensors are only accurate to about 1 degree, an 8 bit analog to digital converter will be suitable for measurement of outdoor temperature since the 8 bit converter will allow up to 256 degrees of measurement in one degree increments.

Another example might be a pressure transducer with a working range of 0 to 1000 PSI. An 8 bit converter would present this information in approximately 4 PSI increments... 0 PSI, 4 PSI, 8 PSI, 12 PSI, etc. (1000 divided by 256 equals about 4 PSI). A 10 bit converter will present this information in about 1 PSI increments... 0 PSI, 1 PSI, 2 PSI, 3 PSI, etc. A 12 bit converter will present this information in about ¼ PSI increments... 0 PSI, ¼ PSI, ½ PSI, ¾ PSI, 1 PSI, etc.


PRECISION INSTRUMENTATION AMPLIFIERS
VA-1 PRECISION INSTRUMENTATION AMPLIFIER...The VA-1 is a high input impedance precision instrumentation amplifier with a typical input impedance of about 1 trillion ohms (minimum 1.0 nA input current required) which utilizes the most recent technology developed by Burr-Brown (one of the foremost leaders in analog design). The VA-1 is configurable for both single-ended and differential inputs. A terminal block is provided for connections to the power source and signal I/O. Requires an isolated 18 volt power supply, 50 milliamp (specify PS-12VDC-500 wall adapter).

VA-2 PRECISION INSTRUMENTATION AMPLIFIER...The VA-2 is a two channel version of the VA-1. Requires an isolated 18 volt power supply, 100 milliamp (specify PS-12VDC-500 wall adapter).
VA-1/VA-2 Photo (23 KByte file)
VA-1 and VA-2 SPECIFICATIONS

Size (VA-1)................ 1.75" by 3.75"     
Size (VA-2)................ 1.75" by 5.25"    
    
Weight (VA-1).............. 1 ounce
Weight (VA-2).............. 2 ounces

Offset Voltage............. 50 microvolts (maximum)
Drift...................... 0.5 microvolts per degree C (maximum)
Common Mode Rejection...... 115 dB (minumum)
Input Voltage Protection... to +40 or -40 volts without damage

Voltage output range....... 0 to 5 volts DC (for direct connection to 
                            the ADC-16 or ADC-4)

Voltage input range........ adjustable: 0 to 1 millivolt through 
                            0 to 5 volts DC (0 to 100 millivolt typical)

Differential input range... adjustable: +1 to -1 millivolt through 
                            +5 to -5 volts DC (+1 to -1 volt typical)

Operating Temperature...... -40 degrees C to 85 degrees C
Power requirements......... 18 to 24 volts DC (100 milliamp)


CO-420 PRECISION 4 to 20ma CONVERTER

The CO-420 Precision 4 to 20ma Converter utilizes the most recent technology developed by Burr-Brown (one of the foremost leaders in analog design). The CO-420 will provide an output level of 0 to 5 volts DC for connection directly to the ADC-4, ADC-8 or ADC-16. The CO-420 converter will provide a 0 volt ouput with 4ma on the input loop and a 5 volt output with 20ma on the input loop along with the corresponding values in the 4 to 20ma range (example: 12ma on the loop will convert to a 2.5 volt DC output on the CO-420, etc.). A terminal block is provided for connection to the input, output and power source. Other features include high noise immunity (86dB CMR), 0.01 percent overall conversion accuracy, internal sense resistors and + and - 40V common-mode input range. The CO-420 provides a current source for the 4 to 20ma loop. Includes technical reference and applications information. Size 1.6" by 2.25". Requires 32 to 48 volt DC power source (specify PS-24VDC-400 wall adapter).
CO-420 Photo (40 KByte file)


DIGITAL TO ANALOG CONVERTERS

DA-1 DIGITAL TO ANALOG CONVERTER... The DA-1 is a single channel, 8 bit, D to A converter which has an adjustable output range from 0 to 1.25 volts thru 0 to 6 volts (0 to 5 volts typical). The DA-1 connects directly to any of the output ports on the AR-16 Relay Interface or the EX-16 Relay Expansion card (requires eight digital outputs). The DA-1 may be connected to other types of digital equipment which will provide eight TTL level outputs for connection to the DA-1. Relative accuracies are better than plus or minus two tenth of a percent. The DA-1 provides outstanding linearity with zero level output current of less than 4 microamps. The 8 bit converter provides 256 increments of output voltage. Typical applications include variable air damper control, blower and motor speed control, light level control, audio sound level control, motion control and hundreds of other applications. A terminal block is provided for connections to the power source and analog output. A ribbon cable is provided for connection to the AR-16 or EX-16. The DA-1 and DA-2 are also available with a 0 to 10 volt output range (please contact technical support for more information). Includes technical reference, software examples and test software. Requires an isolated 18 volt power supply, 50 milliamp (specify PS-12VDC-500 wall adapter). Dimensions are 1.75" by 4.875".
DA-1/DA-2 Photo (40 KByte file)
DA-2 DIGITAL TO ANALOG CONVERTER... The DA-2 is an 8 bit, two channel version of the DA-1 described above. Two ribbon cables are provided for connection to the AR-16 or EX-16 relay ports (requires sixteen digital outputs). Includes technical reference, software examples and test software. Requires an isolated 18 volt power supply, 100 ma. (specify PS-12VDC-500 wall adapter). Dimensions are 2.125" by 7".

DA-2I DIGITAL TO ANALOG CONVERTER... The DA-2I is a two channel (4 bit) digital to analog converter with electrically isolated analog outputs. This 4 bit converter provides 16 increments of output voltage. An adjustable voltage reference is provided which allows the output voltage range to be adjustable from 0 to 1.25 volts thru 0 to 10 volts (0 to 5 volts typical). Connects directly to any of the output ports on the AR-16 or EX-16 cards with the ribbon cable provided (requires only 4 digital outputs per channel). Includes technical reference, software examples and test software. Requires an isolated 12 volt power supply (specify PS-GP-1 adapter).


STA-16 STATUS INPUT INTERFACE
The STA-16 Status Input Interface provides two 8 channel status input ports which allow input of on/off status information into a conventional PC for a wide variety of monitoring and signaling applications. Uses include the input of on/off status information of relays, switches, thermostats, security system motion detectors and magnetic switches, smoke detectors, heating and air conditioning equipment, air flow switches, air damper position switches, pressure switches and thousands of other devices. The STA-16 also has many applications in the home automation field. The energy consumption of equipment with a constant load (lighting, resistance heating, hot water heaters, etc.) is easily computed by multiplying the time on by the equipment's KW rating. Other uses include the input of 8 or 16 bit binary codes for interfacing to TTL or CMOS level digital signals (allowing connection to counters, parallel data bus lines and other types of digital devices & equipment). The KY-12M Keypad may be connected directly to the STA-16 status input ports for use with security systems, door entry access, remote data entry and other uses. A modem will permit the status inputs to be monitored from a remote site. The status information is obtained by transmitting a single byte port code to the STA-16. The STA-16 then transmits back a single byte code with each bit representing the 8 inputs on that port. The status inputs are turned on by applying a small current (6 ma typical) to the LED inside the opto coupler on the STA-16 (minimum 1.5 volts required, common cathode). Optional AC opto couplers are available which will turn on in both directions, allowing for both common cathode and common anode configurations. The input voltage range defaults to a 6 to 18 volt range with a 1.8 K series resistor to the LED (the STA-16 may be ordered with other resistor values or with no resistors by specifying the /M option). The STA-16 Status Input Interface provides a relay expansion port to control up to 112 relays (using EX-16 or EX-32 relay expansion cards) and an input expansion port which allows for expansion to 144 status inputs or 32 analog inputs (using ST-32, AD-16 or AD-32 expansion cards). An optional Touch Tone input is also available. Includes technical reference, software examples and STA-16 Data Acquisition Software for Windows (for use with Windows versions 3.0, 3.1, Windows 95, 98, 2000, ME, NT, XP and Vista). Software is also provided that allow the STA-16 inputs and/or relays to be controlled or monitored over a network (LAN, Internet, etc.).

STA-16 Photo (99 KByte file)
FEATURES
  • Low cost - High reliability - 10 years of proven performance in the energy management field.

  • Quality - Industrial grade components... provided by major manufactures including National Semiconductor, Motorola, Harris, Siemens, Burr-Brown, Maxim and other major manufacturers.

  • Use with IBM and compatibles, Apple, Macintosh, Tandy and most other computers.

  • Serial data I/O...connects to RS-232 serial I/O ports (or optional RS-422, RS-423 or RS-485) - COM1, COM2, COM3, COM4, etc.

  • A wide variety of serial cables and custom made serial cables are available for connection to most computers.

  • Simplified software development using virtually any programming language that supports serial communications, including GW Basic, Quick Basic, Visual Basic, C, Visual C, Assembly and many others. Special drivers or handshaking are not required.

  • All 16 status inputs are electrically isolated with opto isolators (opto isolators are included).

  • Optional Touch Tone input and AC inputs are available.

  • Optional USB, RS-422 or RS-485 serial interface available (distances to 4,000 feet).

  • Available in an 8 channel version.

  • Full documentation is provided with the STA-16, including connection diagrams, pin-outs, hardware interfacing and control software examples. A disk is provided with each order providing test software and control software examples in GW Basic, Microsoft QuickBasic, MicroSoft Visual Basic, Turbo C, MicroSoft Visual C, and Assembly Language. Test programs are also provided (.EXE files).

  • Full technical support provided from on-staff technical advisers.

  • Control up to 112 Relays, input up to 144 Digital Inputs or up to 32 Analog Inputs. All through a single RS-232 connection (using EX-16, ST-32 or AD-16 expansion cards).

TOUCH TONE INPUT
The STA-16 may be ordered with an optional touch tone input which decodes all 12 of the standard telephone tones plus 4 additional tones which may be used for control functions. An interrupt output is provided on the STA-16 which may be used in generating an RS-232 interrupt when a tone is detected. A molex connector (.1" centers) is used for connection to the touch tone input. The touch tone input may be connected directly to a telephone line with the addition of the VC-1 voice coupler. The touch tone input may be used for a variety of applications such as voice mail, telephone call routing, and remote control applications which allow remote input of control functions into a conventional PC from any touch tone telephone.

VC-1 VOICE COUPLER...The VC-1 connects directly to the STA-16 tone input via a molex connector cable (included). A terminal block is provided for connection to a power source and for the RS-232 I/O interface connection to your PC. This interface allows the PC to monitor for rings and allows the PC to place the telephone off-hook. The VC-1 may share the same RS-232 that is used with the STA-16. Two RJ11 telephone jacks are provided on the VC-1 which are selectable line 1 or line 2. One of the RJ11 jacks is used for connection to the telephone line and the other RJ11 may be used for connection to an additional telephone, modem or other device. The VC-1 also provides voice input and voice output connections which may be used with a sound card. The voice input may be used for providing a message to the calling party, music on hold or other functions. The voice output may be used to record a message from the calling party or for other uses. LED indicator lamps are provided to indicate ring, off-hook and power. Requires a power source (12 to 14 volts DC, 100ma). Dimensions are 2.25" by 4".

VC-1 Photo (47 KByte file)
KY-12M KEYPAD
The KY-12M keypad is a 12 key keypad with a matrix decoder. The keypad connects to the decoder card via an 18" ribbon cable (provided) and the decoder card connects to the STA-16, ADC-16, ST-32 or AD-16 port via a 14" ribbon cable (provided). The KY-12M requires 4 digital or analog inputs. An interrupt output is provided on the KY-12M which may be used in generating an RS-232 interrupt when a keypress is detected. The KY-12M may be ordered with a terminal block in place of the ribbon cable for installation away from the STA-16 or for use with other types of equipment which provide TTL level digital inputs. The KY-12M Keypad may be powered through the ribbon cable by the STA-16 or ADC-16 or may be powered by an external 5 to 12 volt DC power source (50 ma). Size 2.875" by 1.75" (fits in a standard single gang electrical box). Includes software examples, test software, and technical data.


KY-12M Photo (47 KByte file)
PAC-C STATUS INPUT PACKAGE...The STA-16 status input package is an assembled package which includes the EN-A 7½" by 10" plastic enclosure, the STA-16 status input card, (1) RCT-16 terminal block, (1) power supply and (1) connecter cable. The serial cable supplied will be the CC-DB25S unless specified otherwise.

PAC-C Photo (47 KByte file)
ACCESSORIES FOR USE WITH THE STA-16
AD-16 & AD-32 Analog Expansion Cards
ST-32 Status Expansion Card
EX-16 & EX-32 Relay Expansion Cards
VC-1 Voice Coupler
PS-4 Port Selecter
CH series Card Racks
SP-1 Power Protector and TranZorbs
Keypads and Keypad Accessories
Relay Cards and Relay Driver Cards
Power Relays and Relay Modules
Ribbon Cable to Terminal Block Adapters
Connector Cables and Power Supplies
Serial RS-232 to RS-422 Converters
Enclosures and Mounting Hardware

SPECIFICATIONS
Designed for continuous 24 hour industrial operation.

Baud rate is selectable (50 to 19,200 baud). Default protocol is 8 data bits, 2 stop bits and no parity. Jumpers may be used to select other protocols. Maximum sampling rate is 1,700 samples per second (eight channels at 19,200 baud).

Use the ST-32 status expansion cards to expand up to 144 status inputs or the AD-16/AD-32 expansion card to add up to 32 analog inputs. Use the EX-16/EX-32 expansion cards to control up to 112 relays. The PS-4 port selector may be used to connect satellite STA-16 interface cards, allowing input of up to 576 status and control of up to 448 relays from a single RS-232.

Powered from any power supply with a voltage output of 9 to 14 volts DC. Requires 300 milliamp (specify PS-GP-1 wall adapter for single STA-16).

Status input connections use a standard 10 contact ribbon cable header socket (.1" centers). A terminal block is provided for power supply and serial input connections.

Dimensions...5" by 7" (rack mountable with other 5" by 7" cards using the CH series card holder racks).

CONTROL SOFTWARE
For the STA-16 Status Input Interface
The status information is transmited from the STA-16 upon request from the computer. To initiate the sequence, the status port code must be transmited by the computer. In Basic, this is accomplished by using the following command: PRINT #1,CHR$(X); (where X = the status port code... status port #1=0, status port #2=1, etc.). The STA-16 will then immediately transmit back the status of the 8 status inputs for that status port. The single byte number will represent the status information in sequence using the LS bit as the lowest status input and the MS bit as the highest status input (0 = OFF, 1 = ON). Additional information is provided with the STA-16. The program below (GW Basic/QuickBasic, for IBM & Compatibles) will continuously display the status information from each of the first 8 status inputs on the STA-16. The screen is updated continuously so that new status information is displayed at intervals only a few milliseconds apart.
10 CLS                             
20 OPEN "COM1:9600,N,8,2,CS,DS,CD" AS #1  '...configure serial port
30 PRINT #1,CHR$(0);                      '...transmit port #1 code    
40 A$ = INPUT$(1,1)                       '...receive
50 Z=1                                    '...start with LS bit                       
60 FOR Y=1 TO 8                           '...test 8 bits         
70 A= ASC(A$) AND Z                       '...isolate bit            
80 Z=Z*2                                  '...advance to next bit 
90 IF A>0 THEN A(Y)=1:GOTO 110            '...bit set?  
100 A(Y)=0                                '...bit not set 
110 NEXT Y 
120 LOCATE 1,1                            '...position cursor top left 
130 FOR X=1 TO 8 
140 PRINT A(X)                            '...print status on screen  
150 NEXT X                                           
160 GOTO 30
OPTIONS
Options for the STA-16 may be ordered by adding the proper suffix. The following options may be ordered for the STA-16 Status Input Card:

/A422 Option: The STA-16 serial I/O is configured for the RS-422 interface.

/A485 Option: The STA-16 serial I/O is configured for the RS-485 interface.

/D Option: Touch tone input is installed on the STA-16. The touch tone signal is connected using a molex connecter (located on the top right hand side of the card).

/M Option: Input voltage limiting resistors of a specified value are installed on the STA-16. The desired resistance value should be added to the part number after /M. A part number of STA-16/M0 is used to specify no resistor installed.

/Z Option: This option is for use with customized hardware. A 6 digit code will follow the Z suffix to identify the customer and type of modification.

PLEASE NOTE: The STA-16 requires a power supply (PS-GP-1 typical), connecter cable (CC-DB9S typical) and terminal block (RCT-16 typical) to function. Select the proper cable, power supply and terminal block for your application and computer from the associated data sheets. The EX-16, ST-32 and AD-16 expansion cards require a ribbon cable connecter (part number RC-20, sold separately) for connection to the STA-16.

To order the standard STA-16 status input card, specify part number STA-16. The standard STA-16 will be supplied with an RS-232 serial interface.

To order any of the above options, add the proper suffix to the STA-16 part number. Any number of options may be included by adding the proper suffix to the STA-16 part number.
EXAMPLE: use STA-16/D ... to order the STA-16 with the touch tone input
use STA-16/A422 ... to order RS-422
use STA-16/D/M5K ... to order the touch tone input and 5K limiting resistors

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EECI Control System Technology
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