Compod™ Instruction Manual IM-COMPOD Rev. G 3
TABLE OF CONTENTS
IMPORTANT CUSTOMER NOTICE ................................................................................... 2
CHAPTER 1: INTRODUCTION .......................................................................................... 7
Safety information ............................................................................................................. 7
CHAPTER 2: INSTALLATION ........................................................................................... 8
CHAPTER 3: ELECTRICAL CONNECTIONS ......................................................................... 9
Pin configuration ............................................................................................................... 9
Instrument and Compod™ power ................................................................................... 10
RS485 connection ............................................................................................................ 10
General 2-wire topology RS485 network..................................................................... 11
Daisy chain units .......................................................................................................... 11
Analog inputs ................................................................................................................... 12
Pulse output ..................................................................................................................... 12
Digital outputs ................................................................................................................. 12
Relay outputs ............................................................................................................... 12
CHAPTER 4: COMMUNICATING ................................................................................... 14
Power up .......................................................................................................................... 14
Data format various registers .......................................................................................... 14
Modbus registers overview ............................................................................................. 15
Special – Modbus set up .................................................................................................. 17
Registers explained .......................................................................................................... 17
40001: Actual flow ....................................................................................................... 17
40003: Set point ........................................................................................................... 17
40005 – 40008: Totalizer ............................................................................................. 18
40009: Valve power ..................................................................................................... 18
40010 - 40011: Analog inputs 1 & 2 ............................................................................ 18
40012: Digital inputs .................................................................................................... 18