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Acromag ACC1000, Instruction Manual

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Acromag ACC1000 Instruction Manual Download Page 13

Serial Communication Converters & Adapters 

Instruction Manual 

13

 

ACC1000 USB Serial Adapter 

Description 

The ACC1000 USB Serial Adapter allows for direct 
connection of a APM765/VPM3000 meter to the USB 
port of a PC. It is intended only for programming the 
meter. 

Installation 

Figure 23

 shows the connection of a 

APM765/VPM3000 meter to a PC using a ACC1000 
USB Serial Adapter. 

Figure 23. USB Adapter Connections 

Driver Download 

USB Drivers are available for download from the 
Documentation CD provided with every product. 

ACC1002 USB to RS-232 
Converter 

Description 

The ACC1002 USB to RS-232 Converter allows for 
direct connection of a serial device to the USB port of a 
PC.   

Installation 

Figure 24

 shows the connection of a 

APM765/VPM3000 meter to a PC using a ACC1002 
USB to RS-232 Converter, APMA7232 RS-232 adapter, 
and the APMA7420 Modular Cable. 

Figure 24. Connections for ACC1002 to serial device 

Driver Download 

USB Drivers are available for download from the 
Documentation CD provided with every product. 

USB Cable

(Provided)

USB Serial

Adapter

Standard 

Modular Cable

(Provided)

USB to RS-232

Converter

RS-232 Adapter

Modular Cable

Summary of Contents for ACC1000

Page 1: ...22 RS 485 Serial Adapter ACC1001 RS 232 to RS 485 Converter ACC1000 USB Serial Adapter ACC1002 USB to RS 232 Converter ACC1003 USB RS 485 Converter Provide Convenient Way to Bring Data from Meter Into PC PLC etc RS 232 and RS 485 Adapters Available USB to RS 485 and RS 232 Converters Available for APM765 and VPM3000 Meters ACC1000 USB Adapter Great for Programming APM765 and VPM3000 Meter ...

Page 2: ... under this limited warranty shall not exceed the purchase value repair or replacement of the defective unit See Warranty Information and Terms Conditions on www acromag com for complete details Registered Trademarks All trademarks mentioned in this document are the property of their respective owners 2020 Acromag Inc All rights reserved Introduction Acromag provides an assortment of serial commun...

Page 3: ...Mounting Instructions 7 Serial Communications Overview 8 APMA7232 RS 232 Serial Adapter 9 Description 9 Installation 9 Connections 9 APMA7420 Meter Copy Cable 9 Description 9 Connections 9 Operation 9 APMA7422 RS 485 Serial Adapter 10 Description 10 Installation 10 Connections 11 ACC1001 RS 232 to RS 485 Converter 11 Description 11 Installation 11 Connections 12 ACC1000 USB Serial Adapter 13 Descr...

Page 4: ...ing 9 Figure 13 Copy Cable Connecting Two Meters 9 Figure 14 RS 422 or RS 485 Wiring 10 Figure 15 RS 485 Two Wire Multi Drop Wiring 10 Figure 16 Standard Modular Cable Wiring 11 Figure 17 Connections for APMA7422 to Serial Converter 11 Figure 18 ACC1001 Connections and DIP Switch Settings 11 Figure 19 ACC1001 DIP Switch Settings Chart 12 Figure 20 ACC1001 RS 485 Two Wire Multi Drop Wiring 12 Figur...

Page 5: ...on Status Indication Separate LEDs for Power P Transmit TX and Receive RX ACC1001 RS 232 to RS 485 Converter Compatibility EIA 232 EIA 422 and EIA 485 Connectors Screw terminal connector and DB9 Dimension 1 7 x 0 9 x 3 3 43 mm x 24 mm x 83 mm W x H x D Distance RS 232 connection 50 15 m max RS 485 connection 3 937 1 200 m max Number of Units Up to 31 RS 485 compatible devices Power 9 12 VDC 115 VA...

Page 6: ...10 3 m max RS 485 connection 3 937 1 200 m max Driver Compatibility Win 98 2000 ME XP Vista 7 8 10 Number of Units Up to 31 RS 485 compatible devices Power USB Port Status Indication Separate LEDs for Power P Transmit TX and Receive RX Isolation 1500 VAC between data lines 700 VDC input output to power USB Drivers for Serial Communications Adapters USB Drivers for serial communications adapters ar...

Page 7: ...weigh approximately 1 5 oz 42 grams each so the mounting hardware does not need to be overly strong We recommend two 10 pan head screws as shown in Figure 5 but only because they best accommodate the slots in the DIN rail The amount of strain the wiring might place on the module mounting needs to be considered also In many cases DIN rail with double sided tape might be acceptable although not reco...

Page 8: ...2 and back again can be used to form an RS 232 extension cord Data rates of up to 100 kbits second and distances of 3 937 1 200 m can be accommodated with RS 422 RS 422 devices however cannot be used to construct a true multi point network A multi point network consists of multiple drivers and receivers connected on a single bus where any point node can transmit and or receive data RS 485 is an en...

Page 9: ...2 has an RJ11 connector to connect the APMA7420 modular 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 Figure 11 RS 232 Adapter Connections Connections An APMA7420 cable is provided to connect the APM765 VPM3000 meter to the APMA7232 serial adapter Figure 12 shows the APMA7420 cable details Figu...

Page 10: ...001 RS 232 to RS 485 converter in an RS 422 network The APMA7422 has an RJ11 connector to connect the APMA7420 modular cable and a screw terminal connector to connect to the RS 422 network Figure 15 shows the connection of several APM765 VPM3000 meters with APMA7422 serial adapters to a PC using a ACC1001 RS 232 to RS 485 converter in an RS 485 network Figure 14 RS 422 or RS 485 Wiring Notes 1 Ter...

Page 11: ...output 3 TX input and 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 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 power ground GND Baud rates are automatic and handled by the ACC1001 The ACC1001 has three diagnostic LEDs a Power...

Page 12: ...APMA7422 RS 485 Serial Adapter on page 10 for further details 3 Use shielded cable twisted pair plus ground Connect ground shield only at one location Connections To power the ACC1001 connect 12 VDC to the 12VDC and ground to the GND screw terminals from the supplied 115 VAC 12 VDC adapter The ACC1001 may be configured for either a four wire or two wire network Figure 21 details the wiring connect...

Page 13: ...from the Documentation CD provided with every product ACC1002 USB to RS 232 Converter Description The ACC1002 USB to RS 232 Converter allows for direct connection of a serial device to the USB port of a PC Installation Figure 24 shows the connection of a APM765 VPM3000 meter to a PC using a ACC1002 USB to RS 232 Converter APMA7232 RS 232 adapter and the APMA7420 Modular Cable Figure 24 Connections...

Page 14: ...ferent options Factory settings for the switch are shown in Figure 25 Figure 25 ACC1003 DIP Switch Location The termination switch position adds an internal 120 ohm termination resistor when ON up Termination should be used on both ends of the network with high data rates and long wiring runs To configure a two wire network set both of the 2 wire switch positions to ON up For a four wire network s...

Page 15: ...e Figure 28 Connections for ACC1003 in a Two Wire Network The ACC1003 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 Figure 29 shows an example configuration of a two wire network Each device e g APM765 VPM3000 meter connected to the ...

Page 16: ...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 DisplayWizard address and baud rate 5 DIP switch setting on the ACC1001 or ACC1003 If both data status LEDs TX and RX are off when trying to communicate Remove all unnecessary cables and meters Try getting the system to ...

Page 17: ...ion Manual ACROMAG INC 30765 S Wixom Road Wixom MI 48393 USA Tel 248 624 1541 www acromag com LIM7232AM_B 07 20 Contact Acromag Inc Support Call 248 624 1541 Email answers acromag com For the latest version of this manual please visit www acromag com ...

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