UserÕs Guide ® http://www.omega.com e-mail: info@omega.
omega.com ® OMEGA® OMEGAnet ® On-Line Service http://www.omega.com Internet e-mail info@omega.com Servicing North America: USA: ISO 9001 Certified Canada: One Omega Drive, P.O. Box 4047 Stamford CT 06907-0047 TEL: (203) 359-1660 e-mail: info@omega.com 976 Bergar Laval (Quebec) H7L 5A1 TEL: (514) 856-6928 e-mail: info@omega.
TABLE OF CONTENTS I. WHAT SIGNAL CONDITIONERS DO: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 II. MODEL OF UNIT : . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 III. RS485 SERIAL COMMUNICATION SETUP: . . . . . . . . . . . . . . . . . . . . . . . . . 1 SAFETY CONSIDERATIONS: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 IV. COMMANDS FOR ACCESSING EEPROM: . . . . . . . . . . . . . . . . .
NOTES ii
I. WHAT SIGNAL CONDITIONERS DO: The DRX Series Signal Conditioners are high performance devices used as a front end for PLC’s and Data Acquisition systems to measure a variety of low level transducer signals with high precision and accuracy. The DRX Series Signal Conditioners interface directly to transducers and digitize the input signal. The measured signal is then transmitted to a PLC or a computer using the RS485 Serial Communication.
For Procomm: Start the Procomm Program. Press ALT + P (Select the appropriate communication parameters: Baud Rate, Parity, Data Bits, Stop Bits.) The default settings may require modifications.
DRX -- SIGNAL CONDITIONERS WITH RS485 SERIAL COMMUNICATION PORT RS232 TO RS485 CONVERTER HALF—DUPLEX COMPUTER SYSTEM GND OR SHIELD NOTE: YOU CAN CONNECT A DRX DIRECTLY TO THE COMPUTER IF YOU HAVE A RS485 COMMUNICATION CARD INSTALLED IN THE COMPUTER.
SAFETY CONSIDERATIONS This device is marked with the international Caution symbol. It is important to read this manual before installing or commissioning this device as it contains important information relating to Safety and EMC (Electromagnetic Compatibility). Unpacking & Inspection Unpack the instrument and inspect for obvious shipping damage. Do not attempt to operate the unit if damage is found.
SAFETY NOTE: Disconnect all signal input and outputs before attempting this procedure. Instructions 1) Open the Signal Conditioner Unit—Remove Side Covers from Unit by lifting at the “angled corners” first, using a flat-head screwdriver. Continue detaching remaining edges of the Cover. 2) Short TP6 & TP17 together, either by wire or, if available, jumper S1-A. 3) After shorting TP6 to TP17, apply power to the unit. 4) The Front Panel Power Indicator (LED) will NOT turn on.
IV. COMMANDS FOR ACCESSING EEPROM: NO. command letter index 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. R,W R,W R,W R,W R,W R,W R,W R,W R,W R,W R,W R,W R,W R,W R,W 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F meaning # of bytes Input range or function Input/output Configuration Decimal point Filter time constant Reading scale Reading offset Communication parameters Communication bus format Communication Data format Communication device address Communication recog. char.
2. If unit is not in echo mode : i. For the commands which require the data to be transmitted by the DRX Signal Conditioner, data is sent in the following formats: data[hh] ii. For the commands which do not require the data: NO RESPONSE B. Error response: 1. If unit is in echo mode: [nn]?ee 2. If unit is not in echo mode: ?ee NOTE : [] : Means will be used wherever applicable. * : Is the security recognition character(default is “*”).
?ee Note: V. : Special code indicating an error has occurred as: ?43 : Command error ( occurs if command letters and indexes are invalid) ?46 : Format error ( occurs if length of the data or number of characters is not correct ) ?48 : Checksum error ( occurs if checksum is not correct ) ?50 : Parity error ( occurs if parity is not correct ) : Carriage return If Baud rate, Recognition character or address are not correct then the UNIT will not respond.
b. INPUT RANGE BIT NO. VALUE Bits: 1-0 00 01 10 11 2 0 1 3 0 1 00 01 10 11 5-4 RTD 100 ohms 500 ohms 1000 ohms 10 ohms COPPER PLATINUM NICKEL DIN STANDARD NIST FOR Pt (SAMA FOR Ni) 2 wire 3 wire 4 wire not used 6 7 not used 0 1 Line frequency = 60Hz Line frequency = 50Hz c. INPUT RANGE BIT NO. VALUE 3-0 0000 0001 0010 0011 0100 0101 (0110 - 1111 not used) PROCESS (PR) STRAIN (ST) 0-20 mA 400 mV 1V 2V 5V 10 V 30 mV 100 mV --------- Internal excit. External excit. 4 0 1 14V Excit.
d. INPUT RANGE BIT NO. VALUE FREQUENCY/PULSE (FP) 0 0 1 ---Low input level 1 0 1 ---Debounce contact 2 0 1 ---3K pull up to 5V 3 0 1 ---1K pull down 5-4 00 01 10 11 12.5V excit. 5V excit. 8V excit. not used 7-6 not used 2. INPUT/OUTPUT CONFIGURATION: This is one byte data (2 characters). Bit pattern is: BIT NO. VALUE TC/RTD 1-0 00 Degree C 01 Degree F 10 Degree K 11 Degree K ACV/ACC/ST ------------- MEANING PR Totalizer Totalizer FP ---Freq. mode ---Freq. mode 2 0 1 Temp.
Note 1: Bit 2&3 set the speed of process totalize. The time it would take process totalize to reach the non-totalize reading is shown in the following table: Bit 3 Bit 2 0 0 1 1 0 1 0 1 Time to reach regular reading 1 minute 1 hour 1 day 30 day 3. DECIMAL POINT : This is one byte (2 characters) as: value 1 2 3 4 5 6 meaning XXXXXX. XXXXX.X XXXX.XX XXX.XXX XX.XXXX X.XXXXX Note 1: For TC and RTD models, value must be 1 to 3 only. 4.
5. READING SCALE: Multiplication factor applied to input to get a higher or lower reading. This is 3 byte data (6 characters) as follows: - Bits 0 to 18 (19 bits) are value of the scale from 0 to 500000 - Bit 19 is sign, 0 for positive and 1 for negative - Bits 20 to 23 are for decimal point value = DP It means as: Actual decimal value = 10 ** ( 1 - DP ) where ** means "TO THE POWER OF" example: if scale is -0.000345678.
PARITY = bits 4,3 and are: 00 01 10 11 for NO for ODD for EVEN not used DATA BIT = bit 5 and is: 0 1 for 7 data for 8 data STOP BIT = bit 6 and is: 0 1 Bit 7 : always 0 for 1 stop for 2 stop Note 1: Stop bit is always 1. Unless 7 data, no parity is selected then unit will use 2 stop bits. Note 2: When 8 Data bit is selected, only NO PARITY is allowed. 8.
9. DATA FORMAT: This is one byte and specifies the data which will be transmitted against the "V01" command. Bit pattern: bit 0 = 0/1 Means do not include/include peak & valley status register. bit 1 = 0/1 Means do not include/include reading. bit 2 = 0/1 For models(TC/RTD/ACV/ACC): Means do not include/include peak reading. bit 2 = 0/1 For models(PR/ST): Means do not include/include process totalize. bit 3 = 0/1 For models(TC/RTD/ACV/ACC): Means do not include/include valley reading.
12. UNIT OF MEASURE: This is 3 bytes. It is ASCII value of unit of measure. 13. GATE TIME(For FP model only): This is 1 byte from 00 to FF. For value = 00 to FA: Each count equals 10ms. If 0 then gate time = 3ms. Example : 1 second gate time = 64 hex. For value = FB to FF: Value FB FC FD FE FF Gate time 5 seconds 10 seconds 20 seconds 40 seconds 80 seconds 14. DEBOUNCE TIME(For FP model only): This is 1 byte from 01 to FF. Each count equals 5ms. If 0 then error. 15.
VI. COMMANDS FOR MEASUREMENT VALUES: Command Receiving value *01X01 (For all models): Note: In order to have continuous update on reading. Customer should send X01 command every time reading is requested. Reading value. After reading scale and offset. Models(TC/RTD/ACV/ACC): *01X02 Peak reading value. *01X03 Valley reading. Models(PR/ST/FP): *01X03 Peak reading value. *01X04 Valley reading. *01V01 (For all models): String of values.
VIII. RESET COMMANDS : *01Z01 (For all models): Hard reset (reading data from EEPROM). *01Z02 (For all models): Soft reset (Initialize reading). *01Z03 (For models: TC/RTD/ACV/ACC): Reset peak and valley. (For models: PR/ST): Reset process totalize value. *01Z04 (For models: (PR/ST/FP): Reset peak value. *01Z05 (For models: PR/ST/FP): Reset valley value. *01Z07 (For models: TC/RTD/ACV/ACC): Reset peak only. *01Z08 (For models: TC/RTD/ACV/ACC): Reset valley only. NOTE: * 01(Follow “*”) IX.
COLOR 7, 0 CLS END RDG: PRINT #1, "*01X01" DAT1$ = "" DAT$ = "" T$ = TIME$ T1$ = MID$(T$, LEN(T$) - 1, 2) T1 = VAL(T1$) DO IF LOC(1) > 0 THEN CNT = 0 DAT1$ = INPUT$(LOC(1), #1) DAT$ = DAT$ + DAT1$ ELSE T$ = TIME$ T2$ = MID$(T$, LEN(T$) - 1, 2) T2 = VAL(T2$) IF T2 < T1 THEN T2 = T2 + 60 IF T2 - T1 >= 2 THEN CNT = 1 END IF LOOP UNTIL CNT = 1 OR INSTR(1, DAT$, CHR$(13)) > 0 IF DAT$ = "" THEN LOCATE 5, 30 COLOR 28 PRINT "COMMUNICATION ERROR!" P = 1 ELSE IF P = 1 THEN LOCATE 15, 30 COLOR 7, 0 PRINT " " ' (24 SPA
DRX-ACC SPECIFICATIONS INPUT RANGES: 10 mA, 100 mA, 1 Amp, 5 Amp AC current Dedicated input terminals for (10, 100 mA same input), 1 Amp and 5 Amp. Return terminal common to all ranges. WARM UP TO RATED ACCURACY: 30 minutes INPUT POWER: 10 to 32 Volt DC POWER CONSUMPTION: 2.4 Watts (100 mA at 24 V DC) FREQUENCY RANGE: 30 Hz to 1KHz OPERATING AMBIENT: -5 to +55 °C INPUT IMPEDANCE: 3.3 Ohms for 10, 100 mA input 0.2 Ohms for 1 Amp input 0.
WARM UP TO RATED ACCURACY: 30 minutes DRX-ACV SPECIFICATIONS INPUT RANGES: 400 mV, 4V, 40 Volt, 400 Volt INPUT POWER: 10 to 32 Volt DC FREQUENCY RANGE: 30 Hz to 1 KHz POWER CONSUMPTION: 2.4 watts (100 mA at 24 Vdc) INPUT IMPEDANCE: 2.1 Meg for all ranges. ISOLATION: Dielectric strength to 1000 Vrms transient per 1 minute test based on EN 61010 for 50 Vdc or Vrms working voltage.
DRX-FP SPECIFICATIONS FREQUENCY 0 to 9.99999 Hz 10 to 99.9999 Hz 100 to 999.999 Hz 1000 to 9999.99 Hz 10000 to 50000.0 Hz 0 to 50000 Hz RTN +IN INPUT TYPE: Min. Low level signal input (magnetic 120mV pickups) : From 0 mV to 120 mV ø Open Collector NPN (Use software to set: 3 KΩ pull up to 5V): Max. current source = 1.66 mA Open Collector PNP (Use software to set: 1KΩ pull down to RTN): Max. current sink = 12.5 mA TTL/CMOS Input: (Use software to set: no pull up/down). Low <= 0.8 V , High >= 3.
WARM UP TO RATED ACCURACY: 30 minutes DRX-PR SPECIFICATIONS INPUT RANGES: ±20mA; ±400mV, ±1V, ±2V, ±5V, and ±10V Ratiometric or nonratiometric INPUT POWER: 10 to 32 Volt DC EXCITATION: 14V or 10V @ 25mA POWER CONSUMPTION: 3 watts (125 mA at 24Vdc) INPUT IMPEDANCE: Voltage Range: 1MΩ Current Range: 10Ω OPERATING AMBIENT: -5 to +55 °C STORAGE TEMPERATURE: -40 to +85 °C ISOLATION: Dielectric strength to 1000 Vrms transient per 1 minute test based on EN 61010 for 50 Vdc or Vrms working voltage.
POWER CONSUMPTION: 2.4 Watts (100 mA at 24 V DC) DRX-RTD SPECIFICATIONS SPECIFICATIONS: 100, 500, 1000 Ohm platinum RTD with both European (alpha=0.00385) and American (alpha=0.00392) curves.
INPUT POWER: 10 to 32 Volt DC DRX-ST SPECIFICATIONS INPUT RANGE: ±30mV/ ±100mV Ratiometric or nonratiometric POWER CONSUMPTION: 3 watts (125 mA at 24Vdc) EXCITATION: 10V @ 30mA or external OPERATING AMBIENT: -5 to +55 °C INPUT IMPEDANCE: More than 1MΩ STORAGE TEMPERATURE: -40 to +85 °C ISOLATION: Dielectric strength to 1000 Vrms transient per 1 minute test based on EN 61010 for 50 Vdc or Vrms working voltage.
WARM UP TO RATED ACCURACY: 30 minutes DRX-TC SPECIFICATIONS INPUT TYPE: Type J,K,T,E,R,S,B,N, J DIN Input Type Range °F J -346 to 1400°F K -454 to 2500°F T -454 to 752 °F E -454 to 1832 °F RS -58 to 3214 °F B +212 to 3300 °F N -454 to 2372°F J DIN -328 to 1652 °F INPUT POWER: 10 to 32 Volt DC Range °C -210 to 760 °C -270 to 1372 °C -270 to 400 °C -270 to 1000 °C -50 to 1768 °C +100 to 1820 °C -270 to 1300 °C -200 to 900 °C POWER CONSUMPTION: 2.
DIMENSIONS: 0. 89 [2 2. 5] 2.95[75.0] PW R .1] [121 4.
WARRANTY/DISCLAIMER OMEGA ENGINEERING, INC. warrants this unit to be free of defects in materials and workmanship for a period of 13 months from date of purchase. OMEGA Warranty adds an additional one (1) month grace period to the normal one (1) year product warranty to cover handling and shipping time. This ensures that OMEGA’s customers receive maximum coverage on each product. If the unit should malfunction, it must be returned to the factory for evaluation.
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