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Sensor-to-Computer Modules

The SCM9B-1000 Sensor-to-Computer Modules are a family of complete solutions designed for data acquisition systems based on personal computers and other processor-based equipment with standard serial I/O ports. The modules convert analog input signals to engineering units and transmit in ASCII format to any host with standard RS-485 or RS-232C ports. These modules can measure temperature, pressure, voltage, current and various types of digital signals. The modules provide direct connection to a wide variety of sensors and perform all signal conditioning, scaling, linearization and conver-sion to engineering units. Each module also provides digital I/O lines for controlling devices through solid state relays or TTL signals. These digital I/O lines along with built-in limit setting capability provide alarm and control outputs.

The modules contain no pots or switches to be set. Features such as address, data rate, parity, alarms, echo, etc. are selectable using simple commands over the communications port—without requiring access to the module. The selections are stored in nonvolatile EEPROM which maintains data even after power is removed.

Circuit diagram Dataforth SCM9B-1000

Block Diagram SCM9B-1000

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  • Backpanels and Accessories

  • 72 Modules for Type SCM9B-1000:

    SCM9B-1712 15 Digital In and or 8 Digital Out
    SCM9B-1711 15 Digital In and or 8 Digital Out
    SCM9B-1702 7 Digital In, 8 Digital Out
    SCM9B-1701 7 Digital In, 8 Digital Out
    SCM9B-1642 Accumulator, Timer
    SCM9B-1641 Accumulator, Timer
    SCM9B-1632 Accumulator, Frequency
    SCM9B-1631 Accumulator, Frequency
    SCM9B-1622 Event Counter
    SCM9B-1621 Event Counter
    SCM9B-1612 Timer
    SCM9B-1611 Timer
    SCM9B-1602 Frequency
    SCM9B-1601 Frequency
    SCM9B-1562 1-6 V Bridge, 10V Excitation
    SCM9B-1561 1-6 V Bridge, 10V Excitation
    SCM9B-1552 1-6 V Bridge, 8V Excitation
    SCM9B-1551 1-6V Bridge, 8V Excitation
    SCM9B-1542 ±100 mV Bridge, 10 V Excitation
    SCM9B-1541 ±100 mV Bridge, 10 V Excitation
    SCM9B-1532 ±100 mV Bridge, 5 V Excitation
    SCM9B-1531 ±100 mV Bridge, 5 V Excitation
    SCM9B-1522 ±30mV Bridge, 10 V Excitation
    SCM9B-1521 ±30 mV Bridge, 10 V Excitation
    SCM9B-1512 ±30 mV Bridge, 5 V Excitation
    SCM9B-1511 ±30 mV Bridge, 5 V Excitation
    SCM9B-1462 TD-Thermistor
    SCM9B-1461 TD-Thermistor
    SCM9B-1452 2252 Ohm-Thermistor
    SCM9B-1451 2252 Ohm-Thermistor
    SCM9B-1432 .00388 RTD
    SCM9B-1431 .00388 RTD
    SCM9B-1422 .00392 RTD
    SCM9B-1421 .00392 RTD
    SCM9B-1412 .00385 RTD
    SCM9B-1411 .00385 RTD
    SCM9B-1382 Thermocouple Type C
    SCM9B-1381 Thermocouple Type C
    SCM9B-1372 Thermocouple Type B
    SCM9B-1371 Thermocouple Type B
    SCM9B-1362 Thermocouple Type S
    SCM9B-1361 Thermocouple Type S
    SCM9B-1352 Thermocouple Type R
    SCM9B-1351 Thermocouple Type R
    SCM9B-1342 Thermocouple Type E
    SCM9B-1341 Thermocouple Type E
    SCM9B-1332 Thermocouple Type T
    SCM9B-1331 Thermocouple Type T
    SCM9B-1322 Thermocouple Type K
    SCM9B-1321 Thermocouple Type K
    SCM9B-1312 Thermocouple Type J
    SCM9B-1311 Thermocouple Type J
    SCM9B-1252 4-20 mA
    SCM9B-1251 4-20 mA
    SCM9B-1242 ±1 A
    SCM9B-1241 ±1 A
    SCM9B-1232 ±100 mA
    SCM9B-1231 ±100 mA
    SCM9B-1222 ±1 mA
    SCM9B-1221 ±1 mA
    SCM9B-1212 ±10 mA
    SCM9B-1211 ±10 mA
    SCM9B-1152 ±100 V
    SCM9B-1151 ±100 V
    SCM9B-1142 ±10 V
    SCM9B-1141 ±10 V
    SCM9B-1132 ±5 V
    SCM9B-1131 ±5 V
    SCM9B-1122 ±1 V
    SCM9B-1121 ±1 V
    SCM9B-1112 ±100 mV
    SCM9B-1111 ±100 mV


    • RS-485 or RS-232C Interface
    • ASCII Format Command
    • Input isolation voltage 500 Vrms
    • 15-Bit resolution
    • self - calibrated
    • Programmable digital Filter
    • Digitale adjustments of alarms and boundary
    • Counter up to 10.000.000
    • Power Supply +10V bis +30VDC
    • Transient suppression on RS485 lines
    • Screw Clamp included
    • CE Compliant