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Documentation Number 232OPSDA1397
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Optically Isolated Serial Data Acquisition Module
Model 232OPSDA Description
232OPSDA optically isolated RS-232 serial port data acquisition module with variety inputs. input channels provide 12-bit resolution have following configuration: 4-20mA current loop input, buffered inputs, input, non-buffered inputs. These channel configurations modified, required. addition, 232OPSDA contains digital input digital output. Demonstration software data logging utility included with 232OPSDA module.
Features
2500V Optical Isolation protection between RS-232 side module 4-20mA input channel (input resistance buffered input channels (input resistance input channel (input resistance 200K) non-buffered input channels digital input digital output line Automatic baud rate detection (1,200 9,600 baud)
Commands
Only three commands needed control 232OPSDA: read command, read digital command, digital output command. command string consists four five bytes: character, address byte character, command characters, data byte required).
232OPSDA Commands
Function Command Read Channels !0RA{#} Read Digital !0RD Digital Output !0SO{#} NOTE:{.} represents byte Response {I/O states} response
addition commands mentioned above, extended commands used provide bit-error identification. With these extended commands, character used place character, compliment data byte must sent after data byte. extended commands shown below.
232OPSDA Extended Commands
Function Read Channels Response Read Digital #0RD {I/O states}~{I/O states} Digital Output #0SO{#}~{#} response NOTE: Each ~{.} represents complement byte. Command #0RA{#}~{#}
Electronics March 1997
This product designed manufactured domestic imported parts
Documentation Number 232OPSDA1397
Please contact Technical Support more information.
Converter
232OPSDA channels 12-bit A/D. These channels have several different input configurations handle variety applications. channel converts 4-20mA analog input current voltage. channels read voltages between buffered provide high input impedance. channel read voltages between 10V, non-buffered channels read voltages between
Digital Lines
232OPSDA digital input that CMOS/TTL compatible handle voltages from -30VDC +30VDC. CMOS/TTL compatible digital output also available 232OPSDA. These digital lines available terminal blocks.
Terminal Block Assignments
Terminal Block Function Description Current Loop Input* Buffered Input** Buffered Input Input Non-buffered Input Non-buffered Input DOUT Digital Output Digital Input Isolated Ground +12VDC +12VDC Power Supply Connection *The current loop input uses non-inverting amplifier with gain 23.064. Spaces through-hole resistors provided change gain this non-inverting amplifier (Gain must decreasing gain, currents 100mA read using **This 0-5V input uses voltage follower circuit. Space provided through-hole resistors change voltage follower into non-inverting amplifier with gain This allows read small voltages with greater accuracy.
Power Supply
232OPSDA port powered RS-232 side device, external isolated power supply (232PS2 equivalent) needed power side device. wire connected terminal block labeled GND, positive voltage wire connected terminal block labeled +12VDC.
Communications
232OPSDA connects host computer's RS-232 serial port using DB-25 (female) connector. module automatically detects baud rates from 1,200 9,600. data format data bits, stop bit, parity used. RS-232 side device port powered. Power drawn from regardless state each. none these lines available, +12VDC supply connected DB-25 connector.
RS-232 Connector Pinout
DB-25 Function Optional Power Connection
Electronics March 1997
This product designed manufactured domestic imported parts
Documentation Number 232OPSDA1397
Please contact Technical Support more information.
Specifications
Analog Digital Converter Resolution: Channels: Connections: Terminal Blocks 4-20mA Input Channel: Input Resistance: Input Offset Voltage: 1500µV Input Offset Drift Voltage: 0.5µV/°C Maximum Signal Conditioning Error: output buffered Input Channels: Input Resistance: Input Offset Voltage: 1500µV Input Offset Drift Voltage: 0.5µV/°C Maximum Signal Conditioning Error: output Input Channel: Input Resistance: 200K Input Offset Voltage: 1500µV Input Offset Drift Voltage: 0.5µV/°C Maximum Signal Conditioning Error: output Non-buffered Channels: Input Offset Voltage: 1500µV Input Offset Drift Voltage: 0.5µV/°C Total Unadjusted Error: ±1.75LSB Non-buffered input channels must driven from source impedance less than Digital Input Voltage Range: Voltage: High Voltage: Leakage Current: Connection: Digital Output Voltage: High Voltage: Connection: Power Supply Input Voltage: Connection: Communications Standard: Baud Rate: Format: Port Power: Isolation Protection: Connector: -30VDC 30VDC -30VDC 1.0VDC 2.0VDC 30VDC microamp max. Terminal Block 0.6VDC 8.7mA 4.3V -5.4mA Terminal Block 9VDC 16VDC @10mA (Doesn't include power consumption external devices.) Terminal Blocks RS-232 1,200 9,600 (automatic detection) data bits, stop bit, parity 2500V DB-25S (female)
NOTE: Both port power isolated external power supply needed power 232OPSDA!
Electronics March 1997
This product designed manufactured domestic imported parts

Please contact Technical Support more information. Optically Isol

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