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A8911-23 Modbus Pulse Input Module

Obvius, LLC

Installation and Operation Manual

Date Nov 3, 2011

Page 1

A8911-23

www.

.com

[email protected]

1.800.561.8187

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Summary of Contents for A8911-23

Page 1: ...A8911 23 Modbus Pulse Input Module Obvius LLC Installation and Operation Manual Date Nov 3 2011 Page 1 A8911 23 www com information itm com 1 800 561 8187...

Page 2: ...been abused or misused 3 has not been repaired altered or modified outside of Obvius s authorized facilities 4 has not been sold subject to other warranty terms specified at the time of sale and 5 is...

Page 3: ...10 Mechanical Drawings 11 Markings and Symbols WARNING A potential risk exists if the operating instructions are not followed General Warning Symbol This symbol indicates the need to consult the oper...

Page 4: ...s power input and RS485 are non isolated Environmental Pollution Degree 2 Altitude up to 2000M For indoor and outdoor use when used in an appropriate enclosure The A8911 23 must be mounted inside a NE...

Page 5: ...supply Confirm the green Alive LED starts blinking Turn off the power to the module 4 Attach the RS485 and shield wires to the A8911 23 module Attach the other end of the RS485 line to the Modbus mast...

Page 6: ...as running in parallel to electrical cable and VFD systems 8 Power up the A8911 23 The Input LEDs for each connected input should now blink The input LED will be on when the contacts are closed WARNIN...

Page 7: ...read only unless otherwise noted Registers listed as NV are options that are stored in non volatile memory and will be preserved when power is removed from the device Modbus 40xxx registers read regis...

Page 8: ...conds MSW 1008 41009 UINT32 up time seconds LSW 1009 41010 UINT16 Our modbus address 1010 41011 UINT16 Hardware Version major 8911 1011 41012 UINT16 Hardware Version minor HighByte pcb rev 0 rev A etc...

Page 9: ...sters 16bits each Modbus master systems should always query the A8332 8F2D using a single query to read an entire block of registers Never use two queries to read one register and then combine the two...

Page 10: ...tor on the top of the device Step 5 Power up the power supply to the A8911 23 The Green Alive LED should light up and blink Step 6 Run the LPC2000 Flash Utility The following screen will be displayed...

Page 11: ...GND P13 GND P14 GND P15 GND P16 GND P17 GND P18 GND P19 GND P20 GND P21 GND P22 GND P23 485 485 NC Shield 24V GND P1 Alive 485 TX 485 RX P2 P3 P4 P5 P6 P7 P8 P9 P10 P11 P12 P13 P14 P23 P22 P21 P20 P19...

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