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DFM-400P Rev 2.1 Installation and Appplication Guide  Edition 1.6 

Page 9 of 14

 

 

 

 

Application Notes 

Objects 

The following is a list of predefined or “fixed” objects that reside in the Pulse Input Field 
Module, which you cannot create or delete.  When connected to a BACnet RS-485 MS/TP 
network, these objects are readily accessible over the network.  Connecting to a LINKnet 
network is not an option. 

Object  Name 

Description 

Default Value 

DEV1 

BACnet PI 

Device Object 

N/A 

PI1 

Pulse Input 1 

Counts and Configures Pulses 

N/A 

PI2 

Pulse Input 2 

Counts and Configures Pulses 

N/A 

PI3 

Pulse Input 3 

Counts and Configures Pulses 

N/A 

PI4 

Pulse Input 4 

Counts and Configures Pulses 

N/A 

AV1 

PI1 Converted Pulse Rate 

Pulse Value (PI1 “Present” 

Value) 

N/A 

AV2 

PI1 Average Converted Pulse Rate 

Avg. Pulses (from PI Data tab) 

N/A 

AV3 

PI1 Sample Interval 

Sample Interval (from PI Setup 

tab) 

60 

AV4 

PI1 Number of Sample Intervals 

Number of Intervals (from PI 

Adv.) 

AV5 

PI1 Total Pulses 

Total Pulses (from PI Data tab) 

N/A 

AV6 

PI2 Converted Pulse Rate 

Pulse Value (PI2 “Present” 

Value) 

N/A 

AV7 

PI2 Average Converted Pulse Rate 

Avg. Pulses (from PI Data tab) 

N/A 

AV8 

PI2 Sample Interval 

Sample Interval (from PI Setup 

tab) 

60 

AV9 

PI2 Number of Sample Intervals 

Number of Intervals (from PI 

Adv.) 

AV10 

PI2 Total Pulses 

Total Pulses (from PI Data tab) 

N/A 

AV11 

PI3 Converted Pulse Rate 

Pulse Value (PI3 “Present” 

Value) 

N/A 

AV12 

PI3 Average Converted Pulse Rate 

Avg. Pulses (from PI Data tab) 

N/A 

AV13 

PI3 Sample Interval 

Sample Interval (from PI Setup 

tab) 

60 

AV14 

PI3 Number of Sample Intervals 

Number of Intervals (from PI 

Adv.) 

AV15 

PI3 Total Pulses 

Total Pulses (from PI Data tab) 

N/A 

AV16 

PI4 Converted Pulse Rate 

Pulse Value (PI4 “Present” 

Value) 

N/A 

AV17 

PI4 Average Converted Pulse Rate 

Avg. Pulses (from PI Data tab) 

N/A 

AV18 

PI4 Sample Interval 

Sample Interval (from PI Setup 

tab) 

60 

AV19 

PI4 Number of Sample Intervals 

Number of Intervals (from PI 

Adv.) 

Summary of Contents for DFM-400P

Page 1: ...al for electrical water gas and various flow meters the DFM 400P has four pulse inputs Two inputs support pulses from 0 to 200 Hz and the other two inputs support pulses from 0 to 2000 Hz Any addition...

Page 2: ...Guide ORCAview Technical Reference Manual particularly Appendix G in the V3 22 Manual Important Information The Pulse Input Field Module is designed to work with Application Controller products starti...

Page 3: ...Inputs 2 Pulse Inputs PP1 and PP2 0 2000 Hz each or actual maximum of about 1950 2 Pulse Inputs PP3 and PP4 0 200 Hz each Monitors either Dry Contact or Open Collector signals Jumper selectable DEBOUN...

Page 4: ...DFM 400P Rev 2 1 Installation and Appplication Guide Edition 1 6 Page 4 of 14 Board Layout...

Page 5: ...device is transmitting out the associated port and a red LED flashes to indicate when the device is receiving data through the port Jumpers DEBOUNCE DEBOUNCE Debounce circuitry which may be necessary...

Page 6: ...ess from higher up devices may be enabled or disabled via jumper setting Enabled With the jumper in place the device automatically obtains portions of its overall BACnet device address as related to A...

Page 7: ...ust be powered separately Network Cabling Requirements To ensure network stability and reliable communications particularly at high speeds on a BACnet RS 485 MS TP network it is imperative that you ad...

Page 8: ...s that there is one other device configured as a System level device on the network 2 Pulse Input Field Modules Configured as LINKnet Devices Not applicable for the DFM 400P Field Module as it can onl...

Page 9: ...Setup tab 60 AV4 PI1 Number of Sample Intervals Number of Intervals from PI Adv 5 AV5 PI1 Total Pulses Total Pulses from PI Data tab N A AV6 PI2 Converted Pulse Rate Pulse Value PI2 Present Value N A...

Page 10: ...Input Field Module does not support this property There is no need when the hardware supports a jumper configurable debounce COV The PI objects each have a COV setting that is used globally for all of...

Page 11: ...y the sample interval time and verify that the result remains within the Maximum Pulses per Sample Time as listed above Notice that only PP1 and PP2 are designed to handle the higher pulse rates In an...

Page 12: ...ulse values MS TP Connection Objects All of the existing predefined DFM 400P objects are readily accessible over the MS TP network GCL Programming Write GCL programs in other controllers on the networ...

Page 13: ...adian Interference Causing Equipment Regulations Cet appareil num rique de la Classe A Respecte toutes les exigences du R glement sur le mat rial brouiller du Canada UL Compliance Information This pro...

Page 14: ...ns Class A EN 61000 3 2 1999 Power Line Harmonics Class D EN 61000 3 3 1998 Power Line Fluctuations Pst 1 Plt 0 65 EN50082 1 1997 Generic Immunity Standard Part 1 Residential EN 61000 4 2 1995 ESD Imm...

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