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Serial Communication Converters & Adapters Instruction Manual

Table of Contents

ORDERING INFORMATION --------------------------------------------- 2

SAFETY INFORMATION ------------------------------------------------- 3

SPECIFICATIONS ---------------------------------------------------------- 7

PDA1232 P

RS-232 Serial Adapter ---------------------------------- 7

PDA1485 P

RS-422/485 Serial Adapter ---------------------------- 7

PDA7232 Trident RS-232 Serial Adapter ---------------------------------- 7

PDA7422 Trident RS-422/485 Serial Adapter ---------------------------- 8

PDA7485 RS-232 to RS-422/485 Converter ------------------------------ 8

PDA7488 Trident RS-232 & RS-485 Multi-Input Adapter ------------- 9

PDA8232 USB to RS-232 Converter ---------------------------------------- 9

PDA8485 USB to RS-422/485 Converter -------------------------------- 10

SERIAL COMMUNICATIONS OVERVIEW ------------------------- 11

PDA1232 P

RS-232 SERIAL ADAPTER --------------------- 13

Description ----------------------------------------------------------------------- 13

Installation ------------------------------------------------------------------------ 14

Connections -------------------------------------------------------------------- 15

Serial Communication Address (

serial

) -------------------- 15

PDA1485 P

RS-422/485 SERIAL ADAPTER --------------- 16

Description ----------------------------------------------------------------------- 16

Installation ------------------------------------------------------------------------ 17

Serial Communication Address (

serIAl

) -------------------- 17

Connections -------------------------------------------------------------------- 20

PDA7232 TRIDENT RS-232 SERIAL ADAPTER ----------------- 21

Description ----------------------------------------------------------------------- 21

Installation ------------------------------------------------------------------------ 22

Connections -------------------------------------------------------------------- 23

PD765 Serial Communication Address (

serl

) ------------------------ 23

PDA7422 TRIDENT RS-422/485 SERIAL ADAPTER ----------- 24

Description ----------------------------------------------------------------------- 24

Installation ------------------------------------------------------------------------ 25

PD765 Serial Communication Address (

serl

) ------------------------ 25

Connections -------------------------------------------------------------------- 28

PDA7485 RS-232 TO RS-422/485 CONVERTER ----------------- 29

Summary of Contents for PDA1232

Page 1: ... to RS 422 485 Converter Isolated RS 232 to RS 422 485 Converter USB to RS 232 Converter USB to RS 422 485 Converter Isolated USB to RS 422 485 Converter Trident RS 232 RS 485 Multi Input Isolated Adapter Board Trident Serial Communication RS 232 Adapter Trident Serial Communication RS 422 485 Adapter PROVU Serial Communication RS 232 Adapter PROVU Serial Communication RS 422 485 Adapter ...

Page 2: ...ir respective owners 2008 Precision Digital Corporation All rights reserved ORDERING INFORMATION Model Description PDA1200 ProVu Meter Copy Cable 3 0 9 m PDA1232 ProVu RS 232 Serial Adapter PDA1485 ProVu RS 422 485 Serial Adapter PDA7420 Trident Meter Copy Cable 7 2 1 m PDA7232 Trident RS 232 Serial Adapter PDA7420 included PDA7422 Trident RS 422 485 Serial Adapter PDA7420 included PDA7485 I RS 23...

Page 3: ...ON CAUTION Read complete instructions prior to instal lation and operation of the equipment WARNING Risk of electric shock WARNING Hazardous voltages could exist on serial communication wiring networks Installation and service should be performed only by trained service personnel ...

Page 4: ...485 USB to RS 422 485 Converter 10 SERIAL COMMUNICATIONS OVERVIEW 11 PDA1232 PROVU RS 232 SERIAL ADAPTER 13 Description 13 Installation 14 Connections 15 PROVU Serial Communication Address serial 15 PDA1485 PROVU RS 422 485 SERIAL ADAPTER 16 Description 16 Installation 17 PROVU Serial Communication Address serIAl 17 Connections 20 PDA7232 TRIDENT RS 232 SERIAL ADAPTER 21 Description 21 Installatio...

Page 5: ... TRIDENT RS 232 RS 485 MULTI INPUT ADAPTER 33 Description 33 Installation 34 Mounting 34 PD765 Serial Communication Address serl 34 Connections 36 PDA8232 USB TO RS 232 CONVERTER 37 Description 37 Installation 38 PDA8485 USB TO RS 422 485 CONVERTER 39 Description 39 Installation 40 Connections 41 TROUBLESHOOTING 43 ...

Page 6: ...able Wiring 28 Figure 12 Connections for PDA7422 to Serial Converter 28 Figure 13 PDA7485 Terminal Connectors and DIP Switch 30 Figure 14 PDA7485 DIP Switch Settings 30 Figure 15 RS 485 Two Wire Multi Drop Wiring 31 Figure 16 Connections for PDA7485 in a Four Wire Network 32 Figure 17 Connections for PDA7485 in a Two Wire Network 32 Figure 18 PDA7488 Mounting 34 Figure 19 RS 422 or RS 485 Wiring 3...

Page 7: ...EIA 485 CONNECTORS Removable screw terminal connector and RJ11 adapter to meter CABLE 6 1 8 m standard Cat5e cable provided with adapter DISTANCE Adapter to to PROVU meter 6 1 8 m max Adapter to com puter 3 937 1 200 m max POWER Powered by PROVU meter M Link connection STATUS INDICIATION Separate LEDs for Power P Transmit TX and Receive RX PDA7232 Trident RS 232 Serial Adapter COMPATIBILITY EIA 23...

Page 8: ... RJ11 connection STATUS INDICIATION Separate LEDs for Power P Transmit TX and Receive RX PDA7485 RS 232 to RS 422 485 Converter COMPATIBILITY EIA 232 EIA 422 and EIA 485 CONNECTORS Screw terminal connector and DB9 DISTANCE RS 232 connection 50 15 m max RS 422 485 connec tion 3 937 1 200 m max NUMBER OF UNITS Up to 31 RS 485 compatible devices POWER 9 12 VDC 115 VAC 12 VDC adapter included STATUS I...

Page 9: ... connection 3 937 1 200 m max NUMBER OF UNITS Up to 6 Trident meters POWER Powered by 1 PD765 RJ11 connection STATUS INDICIATION Separate LEDs for power POWER transmit DATA OUT and receive DATA IN ISOLATION 1500 VAC input to output TX to RX line 500 VAC meter to meter DIMENSIONS 4 0 x 5 5 x 0 9 H x W x D PDA8232 USB to RS 232 Converter COMPATIBILITY USB 1 1 USB 2 0 EIA 232 CONNECTORS PC compatible...

Page 10: ...SB Type B DRIVERS Windows 98 2000 ME XP Linux 2 4 greater DISTANCE USB connection 10 3 m max RS 422 485 connection 3 937 1 200 m max NUMBER OF UNITS Up to 31 RS 485 compatible devices POWER USB port STATUS INDICIATION Separate LEDs for Power P Transmit TX and Receive RX ISOLATION PDA8485 I 1500 VAC between data lines 700 VDC input output to power PDA8485 N 1500 VAC between data lines only ...

Page 11: ... is often inadequate The differential data transmission of RS 422 and RS 485 offers superior performance in most applications Differential signals can help nullify the effects of ground shifts and induced noise signals that can appear as common mode voltages on a network RS 422 was designed for greater distances and higher baud rates than RS 232 In its simplest form a pair of converters from RS 23...

Page 12: ...ns 5 wires PDA8485 DO DO DI DI GND DO DO DI DI GND RS 422 485 DEVICE Figure 1 General Four Wire Network Connection Figure 2 illustrates how to connect a general two wire network a two wire network actually contains 3 wires Note that the PDA7485 and PDA8485 have DIP switches that allow for two wire connections without the need to externally wire the DO to the DI and the DO to the DI see the convert...

Page 13: ...gnal Ground Pins 7 RTS and 8 CTS are tied together and pins 1 CD 4 DTR and 6 DSR are tied together The adapter is powered by the PROVU meter M Link connection Baud rates are adjustable and handled by the PROVU see the PROVU Instruction Manual for more details The PDA1232 has three diagnostic LEDs a Power P LED to show when the adapter is powered properly a Transmit Data TX LED to show when the ada...

Page 14: ...ng the PDA1232 serial adapter The PDA1232 has an RJ45 connector to con nect the Cat5e cable and a PC compatible 9 pin D subminiature con nector DB9 The DB9 can be connected directly to the PC or by using a standard serial extension cable Cat5e Cable Provided RS 232 Adapter Serial Cable Not Provided Figure 3 RS 232 Adapter Connections ...

Page 15: ...y be programmed from 001 to 247 The PROVU meter is factory set to address 001 To change the PROVU meter address 1 Press and hold the Menu button for three seconds to access Ad vanced Features menu of the meter 2 Press Up arrow until Serial SEriaL menu is displayed and press Enter Addres is displayed 3 Press Enter to change meter address using Right and Up arrow buttons Press Enter to accept 4 Pres...

Page 16: ... RS 422 485 terminals which includes Transmit Data DO and DO Receive Data DI and DI and Signal Ground The adapter is pro vided by the PROVU meter M Link connection Baud rates are adjustable and handled by the PROVU see the PROVU Instruction Manual for more details The PDA1485 has three diagnostic LEDs a Power P LED to show when the adapter is powered properly a Transmit Data TX LED to show when th...

Page 17: ...2 485 converter in an RS 485 network PROVU Serial Communication Address serIAl When using more than one meter in a multi drop or multi point mode each meter must be provided with its own unique address For the PROVU meter the address may be programmed from 001 to 247 The PROVU meter is factory set to address 001 To change the PROVU meter address 1 Press and hold the Menu button for three seconds t...

Page 18: ...22 485 Adapter DI DI DO DO DI DI DO DO Figure 4 RS 422 or RS 485 Wiring Notes 1 Termination resistors are optional and values depend on the cable length and characteristic impedance Consult the cable manufacturer for recommendations 2 Refer to RS 232 to RS 422 485 Converter documentation for further details 3 Use shielded cable twisted pairs plus ground Connect ground shield only at one location ...

Page 19: ...ded Adapter 1 PDA1485 RS 422 485 Adapter DI DI DO DO Figure 5 RS 485 Two Wire Multi Drop Wiring Notes 1 Termination resistors are optional and values depend on the cable length and characteristic impedance Consult the cable manufacturer for recommendations 2 Refer to RS 232 to RS 485 Converter documentation for further de tails 3 Use shielded cable twisted pair plus ground Connect ground shield on...

Page 20: ...nverter such as the PDA7485 or PDA8485 for a four wire network Figure 6 Connections for PDA1485 to Serial Converter If the serial converter is configured for a two wire network then the re quirement to externally wire the DO to the DI and the DO to the DI on the PDA1485 screw terminal connector is needed PDA1485 to RS 422 485 Serial Converter Connections RS 422 485 Serial Converter PDA1485 RS 422 ...

Page 21: ...5 Signal Ground Pins 7 RTS and 8 CTS are tied together and pins 1 CD 4 DTR and 6 DSR are tied together The adapter is powered by the PD765 Trident meter Baud rates are adjustable and handled by the PD765 see the Trident Instruction Manual for more details The PDA7232 has three diagnostic LEDs a Power P LED to show when the adapter is powered properly a Transmit Data TX LED to show when the adapter...

Page 22: ...pter The PDA7232 has an RJ11 connector to con nect the PDA7420 modular cable and a PC compatible 9 pin D submi niature connector DB9 The DB9 can be connected directly to the PC or by using a standard serial extension cable PDA7420 Modular Cable Provided RS 232 Adapter Serial Cable P R E C I S I O N D I G I T A L Not Provided Figure 7 RS 232 Adapter Connections ...

Page 23: ... address may be programmed from 00 to 99 for PDC Protocol and from 1 to 247 for Modbus RTU The PD765 Trident meter is factory set to PDC Protocol at address 00 To change the PD765 Trident meter address 1 Press and hold Right arrow and Menu buttons for three seconds to access Advanced Features menu of the meter 2 Press Up arrow until Serial SErL menu is displayed and press Enter Ack Addr is display...

Page 24: ...rew terminal connector for the RS 422 485 terminals which includes Transmit Data DO and DO Receive Data DI and DI and Signal Ground Baud rates are adjustable and handled by the PD765 see the Trident Instruction Manual for more details The PDA7422 has three diagnostic LEDs a Power P LED to show when the adapter is powered properly a Transmit Data TX LED to show when the adapter is sending data out ...

Page 25: ...rial Communication Address serl When using more than one meter in a multi drop or multi point mode each meter must be provided with its own unique address For the PD765 Trident meter the address may be programmed from 00 to 99 for PDC Protocol and from 1 to 247 for Modbus RTU The PD765 Trident meter is factory set to PDC Protocol at address 00 To change the PD765 Trident meter address 1 Press and ...

Page 26: ...DI DI DO DO DI DI DO DO P R E C I S I O N D I G I T A L Figure 9 RS 422 or RS 485 Wiring Notes 1 Termination resistors are optional and values depend on the cable length and characteristic impedance Consult the cable manufacturer for recommendations 2 Refer to RS 232 to RS 422 485 Converter documentation for further details 3 Use shielded cable twisted pairs plus ground Connect ground shield only ...

Page 27: ...5 Adapter DI DI DO DO P R E C I S I O N D I G I T A L P R E C I S I O N D I G I T A L Figure 10 RS 485 Two Wire Multi Drop Wiring Notes 1 Termination resistors are optional and values depend on the cable length and characteristic impedance Consult the cable manufacturer for recommendations 2 Refer to RS 232 to RS 485 Converter documentation for further de tails 3 Use shielded cable twisted pair pl...

Page 28: ... wiring connections from the PDA7422 to an RS 422 485 serial converter such as the PDA7485 or PDA8485 for a four wire network Figure 12 Connections for PDA7422 to Serial Converter If the serial converter is configured for a two wire network then the re quirement to externally wire the DO to the DI and the DO to the DI on the PDA7422 screw terminal connector is needed PDA7422 to RS 422 485 Serial C...

Page 29: ...R and 6 DSR are tied together The RS 485 terminal blocks support Transmit Data DO and DO Receive Data DI and DI and Signal Ground A separate terminal block supports the power input 12VDC and pow er ground GND Baud rates are automatic and handled by the PDA7485 The PDA7485 has three diagnostic LEDs a Power P LED to show when the converter is powered properly a Transmit Data TX LED to show when the ...

Page 30: ...witch positions to ON up For a four wire network set both of the 2 WIRE switches to OFF down When the RS422 switch position is ON up it is configured for an RS 422 network For RS 485 networks set the RS422 switch to OFF down The ECHO switch position allows the data being sent from the RS 232 port to be echoed back into the RS 232 port In most networks this is an undesired effect and the ECHO switc...

Page 31: ...ir R DI DI DO DO DI DI DO DO Modular Cable to Meter Provided Adapter 1 PDA7422 RS 422 485 Adapter DI DI DO DO P R E C I S I O N D I G I T A L P R E C I S I O N D I G I T A L Figure 15 RS 485 Two Wire Multi Drop Wiring Notes 1 Termination resistors are optional and values depend on the cable length and characteristic impedance Consult the cable manufacturer for recommendations 2 Refer to PDA7422 do...

Page 32: ...7485 have been set to the 2 Wire Mode Figure 17 Connections for PDA7485 in a Two Wire Network The PDA7485 internally connects the DI to the DO and the DI to the DO when the DIP switches are set to 2 Wire Mode Either the DI or DO could be used to connect to DATA and either the DI or DO could be used to connect to DATA Two PDA7485 RS 232 to RS 422 485 Serial Converters could be used as a serial exte...

Page 33: ...RTS and 8 CTS are tied together and pins 1 CD 4 DTR and 6 DSR are tied together The PDA7488 has a removable screw terminal connector for the RS 422 485 terminals which includes Transmit Data DO and DO Receive Data DI and DI and Signal Ground Baud rates are adjustable 9600 bps and up recommended and han dled by the PD765 see the Trident Instruction Manual for more details The PDA7488 has three diag...

Page 34: ...sure to allow for adequate room for all connections and or wiring PDA7488 Mounting Feet Figure 18 PDA7488 Mounting PD765 Serial Communication Address serl When using more than one meter in a multi drop or multi point mode each meter must be provided with its own unique address For the PD765 Trident meter the address may be programmed from 00 to 99 for PDC Protocol and from 1 to 247 for Modbus RTU ...

Page 35: ... Trident Multi Input Adapter Board DI DI DO DO METER 1 DI DI DO DO Figure 19 RS 422 or RS 485 Wiring Notes 1 Termination resistors are optional and values depend on the cable length and characteristic impedance Consult the cable manufacturer for recommendations 2 Refer to RS 232 to RS 422 485 Converter documentation for further details 3 Use shielded cable twisted pairs plus ground Connect ground ...

Page 36: ...y a Trident PD765 meter connected to METER 1 connector as shown on Figure 19 The attached meter must be powered and the connection using the standard modular cable provided must be maintained to power the adapter Fig ure 20 shows the cable details WH 1 BK 2 R 3 G 4 Y 5 BL 6 1 2 3 4 5 6 Figure 20 Standard Modular Cable Wiring ...

Page 37: ... Communication Converters Adapters Instruction Manual 37 PDA8232 USB TO RS 232 CONVERTER Description The PDA8232 USB to RS 232 Converter allows for direct connection of a serial device to the USB port of a PC ...

Page 38: ... When connecting a Precision Digital ConsoliDator to a PC using the PDA8232 USB to RS 232 Converter a Null Modem Cable not in cluded must be used A Null Modem Cable is a serial cable that swaps pairs of the wires to allow the two connected devices to operate as they would if they were linked using modems Two PDA7485 RS 232 to RS 422 485 Serial Converters could be used as a serial extender to allow...

Page 39: ...485 terminals which includes Transmit Data DO and DO Receive Data DI and DI and Signal Ground Baud rates are automatic and handled by the PDA8485 The PDA8485 has three diagnostic LEDs a Power P LED to show when the converter is powered properly a Transmit Data TX LED to show when the converter is sending data out from the PC side and a Receive Data RX LED to show when the converter is receiving da...

Page 40: ...rk set both of the 2 wire switch positions to ON up For a four wire network set both of the 2 wire switches to OFF down When the RS 422 switch position is ON up and the RS 485 switch position is OFF down it is configured for an RS 422 network When the RS 422 switch position is OFF down and the RS 485 switch position is ON up it is configured for an RS 485 network PDA8485 DIP Switch Settings SW1 Sw...

Page 41: ...al device in a two wire network when the DIP switches on the PDA8485 have been set to the 2 Wire Mode Figure 25 Connections for PDA8485 in a Two Wire Network The PDA8485 internally connects the DI to the DO and the DI to the DO when the DIP switches are set to 2 Wire Mode Either the DI or DO could be used to connect to DATA and either the DI or DO could be used to connect to DATA PDA8485 to RS 422...

Page 42: ...eld Twisted Pair R DI DI DO DO DI DI DO DO Modular Cable to Meter Provided Adapter 1 PDA7422 RS 422 485 Adapter DI DI DO DO P R E C I S I O N D I G I T A L P R E C I S I O N D I G I T A L Figure 26 RS 485 Two Wire Multi Drop Wiring Notes 1 Termination resistors are optional and values depend on the cable length and characteristic impedance Consult the cable manufacturer for recommendations 2 Refer...

Page 43: ... setting on the PDA7485 or PDA8485 If only the TX or DATA IN data status LED is flashing when serial communications attempted Check 1 Serial adapter and cable 2 Serial protocol selected 3 Meter address and baud rate 4 MeterView address and baud rate 5 Check DIP switch setting on the PDA7485 or PDA8485 If both data status LEDs TX and RX are off when trying to commu nicate Remove all unnecessary cab...

Page 44: ...ion Digital For Technical Support please Call 800 610 5239 or 508 655 7300 Fax 508 655 8990 Email support predig com For Sales Support or to place an order please Call 800 343 1001 or 508 655 7300 Fax 508 655 8990 Email sales predig com For the latest version of this manual please visit www predig com ...

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