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RD-300/RD-232

Remote Displays

Version 2.1

Installation/Operation 

Manual

33210

Summary of Contents for RD-232

Page 1: ...RD 300 RD 232 Remote Displays Version 2 1 Installation Operation Manual 33210 ...

Page 2: ...2 920i Installation Manual ...

Page 3: ...AC Service 4 2 2 2 DC Models Voltages 6 2 18 VDC 4 2 3 Indicator Setup 5 2 4 Serial Data Inputs 8 2 4 1 RS 232 C SW2 8 Off 8 2 4 2 20 mA Active Current Loop SW2 8 On 9 2 4 3 20 mA Passive Current Loop SW2 8 On 9 2 4 4 Configuring the RD 300 RD 232 10 2 5 Powering up With the RD 300 RD 232 13 3 0 Mounting Procedure for Panel Mount RD 300 232 15 4 0 Appendix 19 4 1 RD 300 Replacement Parts 19 4 2 RD...

Page 4: ...2 RD 300 232 Installation Operation Manual ...

Page 5: ... for outdoor applications from 40 C to 25 C 104 F to 13 F The RD 300 can monitor up to four scales S1 S2 S3 S4 and is available for either AC or DC power The following diagram illustrates the front panel of an RD 300 remote display The RD 232 is a high performance serial remote data display designed for indoor use It displays weight data on a high contrast 0 8 LED Status indicators are provided fo...

Page 6: ...from 15 different types of scale indicators The receiver can accept either RS 232C or a 20 mA active or passive current loop The standard unit also re transmits the data via a 20 mA active current loop The data is transmitted either as received or in a Condec continuous serial format at the incoming baud rate 1 1 2 Standard Hardware The standard RD 300 or RD 232 is comprised of a single circuit bo...

Page 7: ...nting holes on 8 75 horizontal by 4 vertical centers Use 1 4 hardware not furnished and mount the enclosure securely The enclosure is hinged on the bottom side of the box The installation environment is not critical but the RD 300 RD 232 should be located as far as practical from major sources of electromagnetic interference EMI or radio frequency interference RFI Also care must be taken to ensure...

Page 8: ... the lever Pull on the wire to assure a good connection You must use 14 AWG or smaller wire Strip and insert the L2 white or neutral wire into TB1 3 Pull on the wire to assure a good connection Strip and insert the ground green wire into TB1 2 Pull on the wire to assure a good connection Figure 2 2 AC Power on Input TB1 To prevent injury or product damage do not turn on the power yet Wait until yo...

Page 9: ...put requires the current supply from the current loop output AND Instruments Model 5000 This indicator can supply either RS 232 or 20 mA active current loop Configure port two to transmit continuously in the Condec format Use the Condec setting for this meter Weigh Tronix 110 and 120 meters with continuous data outputs These indicators can be set up for either current loop or RS232 in the continuo...

Page 10: ...normally used with Masstron accessories This meter supports the grams and tons mode Use the Masstron receiver for these meters Fairbanks 90 164 This indicator is set up for 1200 baud current loop via Port C Enable the Lampbank output in the continuous mode Other Fairbanks meters such as the 90 167 will work with the RD 300 RD 232 if they have continuous data outputs Use the Fairbanks receiver for ...

Page 11: ...When the RD 300 RD 232 senses that the universal receiver has been selected use switch SW2 6 to tell the unit if the serial string contains a kilogram sign as a K or a KG The universal receiver always looks at the data string from back to front This keeps the receiver from confusing the g in kg with a g for gross mode If the string uses a single character for kilograms SW2 6 should be OFF Other In...

Page 12: ...ound do not use RS 232 output Set both the indicator output and the remote display input to 20 mA current loop instead Check your indicator s electrical schematics or feel for extreme heat at the RD 300 RD 232 transformer to determine if your indicator has a combined RS 232 signal and chassis ground If so use 20 mA current loop 2 4 1 RS 232 C SW2 8 Off Data is transmitted as a voltage and alternat...

Page 13: ...ector Insert the wire and release the lever Test the tightness by gently pulling on the wires Tighten the strain relief fitting around the serial data cable with a wrench or pliers The 20 mA receiver in the RD 300 RD 232 is an HP 4200 high speed current loop receiver The photo coupler and requires current swings of less than 4 mA as a mark and greater than 12 mA for a space The output of both the ...

Page 14: ...tered through SW1 and SW2 DIP switches on the CPU board See Figure 2 7 and table below Figure 2 7 DIP Switch Settings Meter Number Receiver SW1 1 SW1 2 SW1 3 SW1 4 0 Universal On On On On 1 IQ plus Condec On On On Off 2 Toledo On On Off On 3 Flex Weigh On On Off Off 4 Analogic On Off On On 5 Fairbanks On Off On Off 6 Cardinal On Off Off On 7 Masstron On Off Off Off 8 AND Off On On On 9 Weigh troni...

Page 15: ...lay the data selected by SW2 6 and 7 regardless what is showing on the scale indicator IF YOU ARE USING ANY OTHER METER SETTING USE THE FOLLOWING SWITCH DATA ON PAGE 12 Baud Rate SW2 1 SW2 2 SW2 3 38 400 On On On 19 200 Off On On 9 600 On Off On 4800 Off Off On 2400 On On Off 1200 Off On Off 600 On Off Off 300 Off Off Off Table 2 2 Baud Rate Settings Input Type SW2 8 20 mA CL On RS 232 Off Table 2...

Page 16: ...RD 300 RD 232 initiates a power on reset clear all data read the switches and waits for new data For these meters SW2 4 5 6 and 7 have the following meanings Time Out Enable SW2 7 Time out counter disabled cn dis Off Time out counter enabled cn ena On Table 2 7 SW2 7 Time Out Enabled Setting Display on Time Out SW2 5 No sig On Last data received Off Table 2 8 SW2 5 Time Out Settings Universal KG C...

Page 17: ...tensity of the three displays on the left side of the display board Note If the display intensity is adjusted to high it will cause the micro s voltage and current to drop causing the remote to continually cycle it s power up sequence To correct this turn the pots counter clockwise about half the adjustment or five turns Repeat this adjustment on both pots to balance the display intensity PRODUCT ...

Page 18: ... with the appropriate status segments Some formats do not make this data available In this case the segments are not illuminated If you have trouble remember you must have continuous data coming from the meter The most common problems are non standard indicator serial outputs mis wiring and mis programming both in the meter and in the RD 300 RD 232 setup Check the LED and see if it is flashing If ...

Page 19: ...ges as smooth as possible because the front plate must lay flush on top of it 6 Detach the circuit board from the front plate and remove the nut and lockwashers from the mounting screws Place the front plate on the panel from the front and push the mounting screws and studs through the holes as shown in Figure 3 1 Figure 3 1 Mounting Procedure for Panel Mount Have someone hold it or secure it with...

Page 20: ...16 RD 300 RD 232 Installation Operation Manual ...

Page 21: ...Mounting Procedure for Panel Mount RD 300 232 17 ...

Page 22: ...18 RD 300 RD 232 Installation Operation Manual ...

Page 23: ... CPU RD 300 R2B 1 LCD w backlight serial 1 32723 Microprocessor RD 300 MPU revision 2 1 1 16348 IC 20 mA receiver HP 4200 1 22586 Display driver MC145453 2 22588 Fuse 25A slo blo PCB 2 22546 Overlay front panel RD 300 1 Table 4 1 RD 300 Replacement Parts List Part Number Description Quantity 32726 Board display CPU RD 232 R2N 0 8 LED serial 1 32723 Microprocessor RD 232 MPU revision 2 1 1 16348 IC...

Page 24: ...nd was not caused by accident misuse neglect alteration improper installation improper repair or improper testing RLWS shall be the sole judge of all alleged non conformities Such equipment has not been modified altered or changed by any person other than RLWS or its duly authorized repair agents RLWS will have a reasonable time to repair or replace the defective equipment Buyer is responsible for...

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