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Serial Communication Converters & Adapters
Instruction Manual
• RS-232 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 Serial Communication RS-232 Adapter
• Trident Serial Communication RS-485 Adapter
• Trident Serial Communication USB Adapter
• P
V
Serial Communication RS-232 Adapter
RO
U
• P
V
Serial Communication RS-485 Adapter
RO
U
PRECISION DIGITAL CORPORATION
233 South Street • Hopkinton MA 01748 USA
Tel (800) 343-1001 • Fax (508) 655-8990
www.predig.com
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Summary of Contents for Precision Digital Corporation PDA1232
- Page 1 • Trident Serial Communication RS-485 Adapter • Trident Serial Communication USB Adapter • P Serial Communication RS-232 Adapter • P Serial Communication RS-485 Adapter PRECISION DIGITAL CORPORATION 233 South Street • Hopkinton MA 01748 USA Tel (800) 343-1001 • Fax (508) 655-8990 www.predig.com...
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Page 2: Safety Information
All trademarks mentioned in this document included are the property of their respective owners. Trident RS-485 Serial Adapter, PDA7420 PDA7422 included © 2008-2019 Precision Digital Corporation. RS-232 to RS-422/485 All rights reserved. PDA7485-I Isolated Converter Trident USB Serial www.predig.com PDA8006... -
Page 3: Table Of Contents
Table of Figures --------------------------------------- 3 Figure 4. RS-422 or RS-485 Wiring ......8 Specifications ------------------------------------------ 4 Figure 5. RS-485 Two-Wire Multi-Drop Wiring ..9 PDA1232 P RS-232 Serial Adapter ----------- 4 Figure 6. Connections for PDA1485 to Serial PDA1485 P RS-485 Serial Adapter ----------- 4 Converter ............ -
Page 4: Specifications
Serial Communication Converters & Adapters Instruction Manual Specifications PDA7232 Trident RS-232 Serial Adapter Compatibility EIA-232 PDA1232 P RS-232 Serial Adapter Connectors PC compatible 9-pin D subminiature connector Compatibility EIA-232 (DB9) and RJ11 (adapter to Connectors PC compatible 9-pin D meter) -
Page 5: Pda7485 Rs-232 To Rs-422/485 Converter
Serial Communication Converters & Adapters Instruction Manual PDA7485 RS-232 to RS-422/485 PDA8232 USB to RS-232 Converter Converter Compatibility USB 1.1, USB 2.0, EIA-232 Compatibility EIA-232, EIA-422, and EIA- Connectors PC compatible 9-pin D subminiature connector Connectors Screw terminal connector (DB9) and USB Type A and DB9 ®... -
Page 6: Serial Communications Overview
Serial Communication Converters & Adapters Instruction Manual The cabling used for an RS-422 or RS-485 Serial Communications serial communications network should always Overview be a high quality cable such as Belden 8162 or Alpha 6203C. A two-wire system requires two RS-232, RS-422, and RS-485 are standard twisted pairs, and a four-wire system requires interfaces approved by the Electronic Industries... -
Page 7: Pda1232 Pro Vu Urs-232 Serial Adapter
RS-232 Serial Adapter Figure 3 shows the connection of a P meter to a PC using the PDA1232 serial adapter. The PDA1232 has an RJ45 connector to connect the Cat5e cable and a PC compatible 9-pin D subminiature connector (DB9). The DB9 can be connected directly to the PC or by using a standard serial extension cable. -
Page 8: Description
Serial Communication Converters & Adapters Instruction Manual Serial Communication PDA1485 P RS-485 Address ( serIAl ) Serial Adapter 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 meter the address may be programmed from 001 to 247. -
Page 9: Connections
Serial Communication Converters & Adapters Instruction Manual Connections A Cat5e cable is provided to connect the P meter to the PDA1485 adapter. Figure 6 details the wiring connections from the PDA1485 to an RS-422/485 serial converter (such as the PDA7485 or PDA8485) for a four- wire network. -
Page 10: Pda7232 Trident Rs-232 Serial Adapter
Serial Communication Converters & Adapters Instruction Manual PDA7232 Trident RS-232 Serial Adapter Description The PDA7232 converts the serial output of the Figure 7. RS-232 Adapter Connections PD765 Trident meter to an unbalanced, full- Connections duplex RS-232 signal. The RS-232 port has a female DB9 connector A PDA7420 cable is provided to connect the with pins 2 (RX output), Trident meter to the PDA7232 serial adapter. -
Page 11: Pda7422 Trident Rs-485 Serial Adapter
Serial Communication Converters & Adapters Instruction Manual provided with its own unique address. For the PDA7422 Trident RS-485 PD765 Trident meter the address may be Serial Adapter 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. -
Page 12: Connections
Serial Communication Converters & Adapters Instruction Manual Connections A PDA7420 cable is provided to connect the Trident meter to the PDA7422 adapter. Figure 11 shows the PDA7420 cable details. (WH) 1 (BK) 2 (R) 3 (G) 4 (Y) 5 (BL) 6 Figure 11. -
Page 13: Pda7485 Rs-232 To Rs-422/485 Converter
Serial Communication Converters & Adapters Instruction Manual PDA7485 RS-232 to RS- Installation 422/485 Converter The DIP switch SW1 allows for several different options. Factory settings for the switch are shown in Figure 13. 1 2 3 4 5 Figure 13. PDA7485 Terminal Connectors and DIP Switch The TERM switch position adds an internal 120 ohm termination resistor when ON (up). -
Page 14: Connections
Serial Communication Converters & Adapters Instruction Manual Connections To power the PDA7485, connect 12 VDC to the +12VDC and ground to the GND screw terminals from the supplied 115 VAC/12 VDC adapter. The PDA7485 may be configured for either a four-wire or two-wire network. -
Page 15: Pda8006 Trident To Usb Serial Adapter
Serial Communication Converters & Adapters Instruction Manual PDA8006 Trident to USB Serial Adapter Description The PDA8006 Trident to USB Serial Adapter allows for direct connection of a Trident meter to the USB port of a PC. Installation Figure 21 shows the connection of a Trident Series meter to a PC using a PDA8006 Trident to USB Serial Adapter. -
Page 16: Pda8232 Usb To Rs-232 Converter
Serial Communication Converters & Adapters Instruction Manual When connecting a Precision Digital PDA8232 USB to RS-232 ConsoliDator to a PC using the PDA8232 USB Converter to RS-232 Converter, a Null Modem Cable (not included) 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. -
Page 17: Pda8485 Usb To Rs-422/485 Converter
Serial Communication Converters & Adapters Instruction Manual The termination switch position adds an internal PDA8485 USB To RS- 120 ohm termination resistor when ON (up). 422/485 Converter Termination should be used on both ends of the network with high data rates and long wiring runs. -
Page 18: Connections
Serial Communication Converters & Adapters Instruction Manual Connections The PDA8485 is powered by the USB port. The PDA8485 can be configured for either a four-wire or two-wire network. Figure 26 details the wiring connections from the PDA8485 to an RS-422/485 serial device in a four-wire network. PDA8485 to RS-422/485 Serial Device Four- Wire Connections PDA8485 Serial... -
Page 19: Troubleshooting
Serial Communication Converters & Adapters Instruction Manual Troubleshooting Symptom Check/Action Power LED is off PDA1232, PDA1485, PDA7232, or PDA7422: 1. Check modular cable connection 2. Check power to meter PDA7485: 3. Check wall plug adapter output 4. Check power connection polarity PDA8485, PDA8006, PDA8008: 5. - Page 20 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 PRECISION DIGITAL CORPORATION 233 South Street • Hopkinton MA 01748 USA Tel (800) 343-1001 • Fax (508) 655-8990 www.predig.com LIM7232_N...
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