parallel bus transducer kits
Contents
1. CONNECT THE PIM TO THE PARALLEL PORT ONLY SEE FIGURE 1 2 Connect from five to eight remote transducers to the 25 pin connector built into the opposite end of the PIM Use the cables and 25 pin T adapters provided The T adapters can be connected in any configuration that appears suitable A star configuration at the PIM or daisy chaining at each transducer or a combination of both are acceptable However limit the total cable length to a maximum of 50 feet 3 Connect the PIM power cord to an AC power source of 95 to 230 volts at 50 60 hertz MENSOR CORP June 2000 4 PCS 400 PARALLEL BUS TRANSDUCER KITS 4 Power up the host PCS 400 only after all connections and power are completed at the PIM If power is not applied to the PIM first the PCS 400 will not recognize the remote transducers 5 The PCS 400 will add 16 to the device address of each transducer it recognizes on the PARALLEL PORT so that the transducer addresses become 16 through 23 0 16 through 7 16 6 To read one of these PBTs change the active transducer setting on the PCS 400 to the appropriate PBT address using the LIMITS ACTIVE TRANSDUCER menu selections SPECIFICATIONS The specifications for the Parallel Bus Transducer are the same as those shown in the Specifications section of the PCS 400 manual PN 0014141001 where applicable with the exceptions as given below PBT Size 2 5 wide x 3 3 high x 4 56 deep 6 35 cm x 8 38 cm x 12. 1 58 cm Weight 1 9 pounds 0 86 kg Power Requires 9 to 15 VDC 12V nominal 120 mA Warm up Approximately 30 minutes Transducer Volume cubic Centimeters Table 1 Transducer Volume Pressure Chamber Reference Chamber Gauge Unit 0 6 cc lt 20 cc Absolute Unit 0 6 cc N A Mounting The PBT may be mounted either vertical or horizontal There are four 6 32 UNF threaded holes in the base three 8 32 UNF threaded holes on the pressure port side and two 8 32 UNF threaded holes on the rear from which to mount the transducer See figure 6 for mounting hole patterns The PBT cover can be reversed such that the bus connector can be on either end 1 00 2 54cm 0 30 0 76cm 0 00 0 00 0 25 0 64cm 1 25 3 18cm 2 25 5 72cm MENSOR CORP 3 55 9 02cm Figure 6 PBT Mounting June 2000 2 30 5 84cm 0 60 1 52cm 2 15 5 46cm 0 00 i el lt 2 LO a lt l 2 2 el PCS 400 PARALLEL BUS TRANSDUCER KITS PIM Size 5 1 wide x 2 7 high x 6 90 deep 12 95 cm x 6 86 cm x 17 53 cm Weight 2 0 pounds 0 91 kg Power 84 264 VAC 50 W maximum Outputs The PIM provides TTL level signals with pinouts compatible with a standard IBM PC Centronics printer port output WARNING DO NOT CONNECT THE MENSOR BUS TRANSDUCER DIRECTLY INTO A STANDARD IBM PC CENTRONICS PARALLEL PRINTER PORT DAMAGE T
3. DRDY 11 P A D amp RAM DATA 12 T A D DATA O39 6 18 12 VDC a 14 GND 15 GND 16 GND 14 25 17 GND 18 GND 25 PIN D SUB CONNECTOR f NE 20 GND 21 GND 22 GND 23 GND 24 GND 25 12 VDC Figure 4 Transducer Port Pinouts Always have the PCS 400 power OFF when connecting external devices Parallel Bus Transducers can operate with up to 50 feet total of interconnecting cable Standard ribbon cable and special Y junction connectors available from Mensor can be used to link the transducers or they can be daisy chained using standard parallel cables with 25 pin D sub connectors The text of la on the following page is specific to the kit that adds from one to four PBTs and the text of 1b covers the kit that adds from five to eight PBTs to a PCS 400 These kits add the necessary components to the PCS 400 for full MEASURE mode operation of the external transducers In addition the PBTs can be connected to the MEASURE CONTROL port to use the external transducer in the CONTROL mode providing the full scale range of the PBT is not greater than the primary range of the PCS 400 MENSOR CORP June 2000 3 PCS 400 PARALLEL BUS TRANSDUCER KITS 1a ONE TO FOUR PBTs A PCS 400 modified for use with up to four PBTs will have a 25 pin connector on the rear panel labeled REMOTE TRANSDUCER PORT see figure 1 This port is a standard Centronics parallel port except for the power wiring The pin outs for this rear panel bus connect
4. O THE COMPUTER COULD RESULT CONNECT THE MENSOR PARALLEL BUS TRANSDUCER TO THE POWER INTERFACE MODULE OR A SPECIALLY EQUIPPED PCS 400 ONLY Mounting It is not necessary to secure the PIM however four slotted holes are provided in the base flanges for a secure mounting if desired Orientation is not a consideration as the module may be mounted in any attitude 1c HIGH PRESSURE PBT The standard maximum range for external Parallel Bus Transducers is 1000 psi However ranges of up to 10 000 psi hydraulic are available Anyone interested in these higher ranges can contact Mensor for details and specifications MENSOR CORP June 2000 6 PCS 400 PARALLEL BUS TRANSDUCER KITS User s Notes MENSOR CORP June 2000 7
5. PRECISION INSTRUMENTS amp SYSTEMS USER S MANUAL PN 0014352001 1 14352 B1 re June 2000 PARALLEL BUS TRANSDUCER MENSOR CORPORATION CODE 201 BARNES DRIVE SAN MARCOS TEXAS 78666 512 396 4200 FAX 512 396 1820 RANGE WEB SITE _http Awww mensor com SN PCS 400 PARALLEL BUS TRANSDUCER KITS PARALLEL BUS TRANSDUCER KITS A PCS 400 can be configured to communicate directly with the Mensor Model 15500 Parallel Bus Transducer referred to as PBT external transducer or Bus Transducer There are two kits available one to interface the PCS 400 with up to four PBTs and another to connect from five to eight PBTs Remote Transducer Parallel Port 1 of 4 PBT S Port PIM Port 1 of 8 PBT S Hogg n Cables a n PCS 400 Rear View Cables Figure 1 Kit Configuration for Multiple PBT S The Model 15500 Parallel Bus Transducer is an external high accuracy pressure measurement module The transducer is essentially identical to the PCS 400 internal transducers except for the metal circuit board housing and the bus connector The circuit board housing can be installed with the 25 pin D sub bus connector facing either end of the PBT Each PBT has a battery backed RAM chip which stores the transducer s serial number temperature compensation coefficients and calibration data Q Q v Figure 2 Parallel Bus Transduc
6. er MENSOR CORP June 2000 1 PCS 400 PARALLEL BUS TRANSDUCER KITS PBT ADDRESS Each Bus Transducer within a group connected to either port of a PCS 400 must have a unique device address from 0 to 7 The address is set by a jumper on the top circuit board of each PBT as shown below in figure 3 The jumper is normally set to an appropriate address at the factory However it can be changed by placing the jumper on another pair of pins from WO to W7 for address 0 through 7 respectively Depending on which port the transducer is connected to the PCS 400 will convert the device address to another address as explained under 1a and 1b on page 4 in this supplement ADDRESS SELECTION PINS Z O w N W we 9 W4 VH 93 7 O 99 O 96 9 6 9 6 O Figure 3 PBT Address Selection Circuit Board MENSOR CORP June 2000 2 PCS 400 PARALLEL BUS TRANSDUCER KITS PBT CONNECTIONS The Bus Transducer connector is a standard female 25 pin D sub connector The transducer operates over a modified Centronics parallel bus The PBT bus differs from a standard Centronics bus in that the PBT bus supplies 12 volt DC power through pins 13 and 25 of the bus cable The PBT port pinouts are shown below PIN FUNCTION 1 SCLK 2 UNIT SEL AO 3 UNIT SEL A1 4 UNIT SEL A2 5 RAM CAL SEL 6 A D SEL 7 SENSOR WR 8 RAM DATA IN 9 NOT USED 1 18 10
7. or are the same as those shown in figure 4 When a PCS 400 is powered up with this kit it recognizes each external transducer connected to the REMOTE TRANSDUCER PORT at their device address The PCS 400 then adds 8 to the device address so that any of up to four bus transducers connected to this port are addressed by the host as transducer 08 through 15 0 8 through 7 8 To read one of these PBTs change the active transducer setting on the PCS 400 to the appropriate PBT address using the LIMITS ACTIVE TRANSDUCER menu selections 1b FIVE TO EIGHT PBTs Using more than four PBTs with a PCS 400 requires a Mensor Power Interface Module PIM PN 0014354001 to provide the necessary power to the external transducers The PIM plugs directly into the Parallel Port on the rear of the PCS 400 and the external transducers then plug into the PIM mensor PCS 400 POWER INTERFACE NODULE i_0 ie Figure 5 Power Interface Module PIM INPUT OUTPUT The procedure for setting up the PBTs and the PIM is as follows 1 The PIM has a built in ribbon cable approximately four feet long Connect this cable to the PARALLEL PORT on the rear of the PCS 400 see figure 1 CAUTION A PCS 400 WHICH HAS BEEN MODIFIED TO ACCEPT FROM ONE TO FOUR EXTERNAL TRANSDUCERS WILL HAVE AN EXTRA REAR PANEL CONNEC TOR LABELED REMOTE TRANSDUCER PORT DO NOT CONNECT THE POWER INTERFACE MODULE TO THIS PORT
Download Pdf Manuals
Related Search