Sensia LEFM 2010FE User manual

February 2014 i IB1009 Rev. 7
CALDON®ULTRASONICS
LEFM®2010FE
Ultrasonic Flowmeter
User Manual

IB1009 Rev. 7 LEFM 2010FE Transmitter User Manual
Page ii February 2014
RECEIPT OF EQUIPMENT
Prior to uncrating, check outside packing case for visible damage. Notify local carrier at once if
damage is present. Inspect unit for damaged or missing parts. Contact Cameron at [phone] to
report damage. Follow up with a written report to:
Cameron
Caldon Ultrasonics Technology Center
1000 McClarenWoods Drive
Coraopolis, PA 15108
USA

LEFM 2010FE Transmitter User Manual IB1009 Rev. 7
February 2014 iii IB1009 Rev. 7
Table of Contents
INTRODUCTION..............................................................................................................................1
TERMS USED IN THIS MANUAL................................................................................................2
1.0 EQUIPMENT SPECIFICATION..........................................................................................3
1.1 LEFM 2010FE Equipment................................................................................................ 3
1.1.1 LEFM 2010FE Transmitter...................................................................................................3
1.1.2 LEFM 2010FE Metering Section...........................................................................................4
1.2 LEFM 2010FE Transmitter Part Code............................................................................. 4
1.2.1 LEFM 2010FE Transmitter...................................................................................................5
1.2.2 Environment.........................................................................................................................6
2.0 INSTALLATION......................................................................................................................7
2.1 Transmitter and Terminations .......................................................................................... 7
2.1.1 Transmitter Mounting ...........................................................................................................7
2.1.2 RS-485 Communication........................................................................................................8
2.1.3 Grounding/Earthing ..............................................................................................................8
2.1.4 Digital Outputs......................................................................................................................8
2.2 Meter Installation Check-Out ......................................................................................... 17
3.0 OPERATION...........................................................................................................................18
3.1 Measuring Flow............................................................................................................... 18
3.2 LEFM 2010FE Transmitter ............................................................................................ 20
3.3 Temperature-Density Determination ............................................................................. 20
3.4 Remote Data Communications....................................................................................... 20
4.0 DISPLAY OPERATION.......................................................................................................21
4.1 Definitions ....................................................................................................................... 21
4.2 Normal Operating Conditions ........................................................................................ 21
4.3 Infrared Interface............................................................................................................. 21
4.4 Display ............................................................................................................................. 22
4.4.1 Boot up and Normal Operational Screens............................................................................23
4.4.2 Path Level Alarm Display Screens ......................................................................................26
4.4.3 Meter State Alarm Display Screens.....................................................................................26
4.5 Output Test Mode............................................................................................................ 28
4.6 Bad Setup File .................................................................................................................28
4.7 Switch Forced Setup........................................................................................................ 29
5.0 MAINTENANCE....................................................................................................................30
5.1 Introduction...................................................................................................................... 30
5.2 General Inspections - Preventative Maintenance Procedures....................................... 30
5.2.1 Enclosure Inspection...........................................................................................................30
5.2.2 Internal Electronics Inspection ............................................................................................31
5.3 Power Supply Voltage Troubleshooting and Maintenance.......................................... 32
5.4 CTC Troubleshooting and Maintenance........................................................................ 33
5.5 MXR Troubleshooting and Maintenance....................................................................... 35
5.6 IOB Troubleshooting and Maintenance......................................................................... 36

IB1009 Rev. 7 LEFM 2010FE Transmitter User Manual
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5.7 Analog Input/Output Verification Procedure................................................................ 37
5.7.1 Current Inputs.....................................................................................................................38
5.7.2 RTD Inputs.........................................................................................................................40
5.7.3 Analog Outputs...................................................................................................................40
5.8 Analog Input Verification............................................................................................... 41
5.9 Analog Output and Pulse Output Verification .............................................................. 41
5.9.1 Force Output (Analog)........................................................................................................41
5.9.2 Force Output (Pulse)...........................................................................................................41
5.9.3 Changing Digital Output Voltage........................................................................................41
5.10 Metering Section and Transducer Cables ...................................................................... 42
5.10.1 Metering Section Inspection................................................................................................42
5.10.2 Transducer Cable Inspection...............................................................................................42
5.11 Transducers...................................................................................................................... 43
6.0 TROUBLESHOOTING AND DIAGNOSTICS FOR THE ULTRASONICS..............45
6.1 Diagnostics....................................................................................................................... 45
6.2 Alarm Conditions ............................................................................................................ 45
6.3 Meter Troubleshooting.................................................................................................... 46
6.3.1 Cross Path VOS..................................................................................................................46
6.3.2 Internal Communication......................................................................................................46
6.3.3 Analog Input.......................................................................................................................46
6.3.4 Path Failure.........................................................................................................................47
6.3.5 Clock Failure......................................................................................................................47
6.4 Path Troubleshooting...................................................................................................... 47
6.4.1 Path Reject Status ...............................................................................................................48
6.4.2 Calculation Error.................................................................................................................51
6.4.3 Iteration Failure...................................................................................................................51
6.4.4 Velocity of Sound Failure...................................................................................................51
6.4.5 Velocity Outlier ..................................................................................................................51
6.4.6 Impedance Failure...............................................................................................................52
6.5 Reprogramming the Transmitter .................................................................................... 52
6.5.1 Modbus ID and Baud Rate..................................................................................................53
7.0 RECOMMENDED SPARE PARTS....................................................................................54

LEFM 2010FE Transmitter User Manual IB1009 Rev. 7
February 2014 Page 1 Introduction
INTRODUCTION
The Caldon LEFM 2010FE Ultrasonic Flow Transmitter is a highly sophisticated flow measurement
system. It employs the ultrasonic transit time method to measure fluid velocity and flow rate. It contains
advanced signal and data processing circuitry to achieve high accuracy and repeatability. It also contains an
automatic self-checking system to continuously verify that it is performing properly and to initiate warnings
and alarms when unsatisfactory conditions are detected. For ease of troubleshooting, it provides easy to
interpret diagnostic information via Modbus®.

IB1009 Rev. 7 LEFM 2010FE Transmitter User Manual
Important Safety Information Page 2 February 2014
CAUTION
CAUTION
WARNING
HOT
SURFACE
Important Safety Information
OPERATORS SHOULD NOT REQUIRE ACCESS TO THE INTERIOR OF THE ELECTRONICS.
ONLY QUALIFIED PERSONNEL SHOULD SERVICE THE ELECTRONICS. DO NOT ATTEMPT
TO DISASSEMBLE THE INSTRUMENT OR OTHERWISE SERVICE THE INSTRUMENT
UNLESS YOU ARE A TRAINED MAINTENANCE TECHNICIAN.
If the equipment is used in a manner not specified by Cameron, the protection provided by
the equipment’s safety features may be impaired. Cameron is not responsible for damages
or injuries sustained as a result of inappropriate use.
Before performing system verification and repair procedures, contact Sensia Measurement Systems.
For additional information or assistance on the application, operation or servicing, write or call the
Sensia office nearest you or visit www.sensiaglobal.com
Terms Used in this Manual
This symbol identifies information about practices or circumstances that can lead to
personal injury or death, property damage, or economic loss.
This symbol indicates actions or procedures which if not performed correctly may
lead to personal injury or incorrect function of the instrument or connected
equipment.
This symbol indicates a particular surface maybe hot and touching this surface may
lead to personal injury.
Note – Indicates actions or procedures which may affect instrument operation or may lead to an instrument
response which is not planned.

LEFM 2010FE Transmitter User Manual IB1009 Rev. 7
February 2014 Page 3 Equipment Installation
1.0 EQUIPMENT SPECIFICATION
1.1 LEFM 2010FE Equipment
The LEFM 2010FE Flow Measurement System consists of two major pieces of equipment:
LEFM 2010FE Transmitter
LEFM 2010FE Metering Section
The LEFM 2010FE Metering Section typically includes the following:
Diagonal Path and Cross Path Transducers
High-Temperature Transducer Cables (to run between the Junction Box and Metering Section)
Junction Box(es)
Low-smoke Transducer Cables (to run between the Transmitter and Junction Box)
Pressure and Temperature devices (optional)
Transducer fixture that holds the transducers to the pipe surface
1.1.1 LEFM 2010FE Transmitter
The LEFM 2010FE Transmitter is a wall mount unit with the following special features:
Standard Outputs:
Flow Pulse (0-5 V standard, 0-12 V optional); the meter K factor is programmable (minimum
frequency 3 Hz)
RS-485 Serial Output (Modbus)
Optional Analog Inputs:
Temperature (100 Ohm PT RTD, α = 0.00385)
Pressure (0,4-20 mA)
Optional Analog Outputs (Select 1 if used):
Density (0,4-20 mA)
Specific Gravity (0,4-20 mA)
Temperature (0,4-20 mA)
Velocity of Sound – (0,4-20 mA)
Flow – (0,4-20 mA)
Display Screen indicating:
Volume Flow or Mass Flow
Temperature
Acoustic Path Status
System Density
Totalized Flow

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Equipment Installation Page 4 February 2014
1.1.2 LEFM 2010FE Metering Section
The metering section contains the acoustic transducers that transmit and receive the ultrasonic pulses that
pass through the fluid. It can be configured with either four ultrasonic measurement paths (two cross paths
and two diagonal paths or all four diagonal paths) or eight ultrasonic measurements paths (four cross paths
and four diagonal paths).
LEFM 2010FE Transmitter is programmed with the dimensions of the metering section (cross sectional
area, distance between transducers, pipe wall thickness, etc.) in order to calculate flow from acoustic
measurements made on the metering section. The LEFM 2010FE Transmitter is connected to the
transducers via a shielded cable. Acoustic transit times through the fluid are measured to determine axial
fluid velocity. The average cross path transit times (or diagonal paths if cross paths are not present) are
used to calculate the fluid sound velocity and fluid temperature. The fluid temperature is used to calculate
density and then used with the volumetric flowrate to determine the mass flowrate.
The transducer modules contain piezoelectric crystals. Each transducer transmits and receives ultrasonic
pulses (typically 1.0 MHz). The LEFM 2010FE Transmitter operating frequency is matched to the
transducers. Transducer cables are used to route electronic signals between the Transmitter and the
transducers.
1.2 LEFM 2010FE Transmitter Part Code
As a member of the Cameron product family, each LEFM 2010FE Transmitter has a part code that
completely defines the construction and features of the flow meter. Table 1-1 defines the part code.
Part Number Power Supply Frequency Paths Enclosure
Material
9A-203B040G02 120 VAC 1.0 MHz 4 Path Stainless Steel
9A-203B040G05 120 VAC 1.0 MHz 8 Path Stainless Steel
9A-203B040G08 230 VAC 1.0 MHz 4 Path Stainless Steel
9A-203B040G11 230 VAC 1.0 MHz 8 Path Stainless Steel
9A-203B040G20 120 VAC 1.0 MHz 4 Path Carbon Steel
9A-203B040G23 120 VAC 1.0 MHz 8 Path Carbon Steel
9A-203B040G26 230 VAC 1.0 MHz 4 Path Carbon Steel
9A-203B040G29 230 VAC 1.0 MHz 8 Path Carbon Steel
Table 1-1 LEFM 2010FE Transmitter Part Code

LEFM 2010FE Transmitter User Manual IB1009 Rev. 7
February 2014 Page 5 Equipment Installation
LEFM 2010FE Specifications
1.2.1 LEFM 2010FE Transmitter
Material:
NEMA 4X Stainless Steel
NEMA 4 Painted Carbon Steel
Wall Mount
Net Weight: 30 lbs. (13.6 kg)
(See Figure 2-1 for dimensions)
Power Requirements
Voltage Supply Required: 120 VAC, 50/60 Hz or,
230 VAC, 50/60 Hz
Current Draw: 120 VAC – 0.8 Amps
230 VAC – 0.6 Amps
Power Consumption: 12W (80W with heaters active)
Cable Lengths
Standard: 25 feet (approximately 7.6 meters); lengths up to 100 feet (31
meters) can be ordered
Extended Range: Special cables can be used for runs up to 1000 feet (310 meters).
Contact the Cameron Engineering department to discuss the
needs of the application.
Pulse Outputs/Communications
Pulse Output: 0-5 V (standard) or 0-12 V (optional)
Alarm Status: +5V or +12V @ 20mA Normal, 0V Alarm
Serial Communications: RS-485 Modbus Protocol (see Cameron Modbus Specification)
Analog Output: 4-20mA or 0-20mA (max load 650 Ohms)
Analog Inputs: 4-20mA, 0-20mA, and RTD

IB1009 Rev. 7 LEFM 2010FE Transmitter User Manual
Equipment Installation Page 6 February 2014
CAUTION
1.2.2 Environment
Indoor or Outdoor Use
Altitudes up to 3000 meters
Pollution – Degree 2
Power Supply ±10% of nominal voltages
Storage Temperature
Transducer Cable: N/A
Transmitter: -70°F (-57°C) to 158°F (70°C)
Operating Temperatures
Transmitter: -40°F (-40°C) to 140°F (60°C)
Transducer Cable (High Temp): -67°F (-55°C) to 392°F (200°C)
Transducer Cable (Low Smoke): -22°F (-30°C) to 176°F (80°C)
Confirm that all other cables entering the transmitter (e.g., power, analog input, analog
output, RS485 etc) that are supplied by the site installation team, are rated to 80 deg C. This
rating allows cables to comply with the full temperature range of the transmitter.
Relative Humidity
Transmitter: 0 – 95% Relative Humidity (Internal)
0 – 100% Relative Humidity (External)
EMI According to EPRI standard TR-10323 Rev 3
EN Standards EN61326-1 (EN-61000)

LEFM 2010FE Transmitter User Manual IB1009 Rev. 7
February 2014 Page 7 Installation
2.0 INSTALLATION
The exact physical properties, acoustic properties, and calibration of the metering section are programmed
into the transmitter as part of the commissioning activities. When installing multiple units ensure that
the transmitter is properly associated with the intended metering section. Also ensure that each
group of transducer signal cables (all transducer cables routed from one transmitter to its specific
metering section is considered a group) are physically separated from other groups of transducer
signal cables.
2.1 Transmitter and Terminations
The LEFM 2010FE meter is designed to be used under a wide variety of environmental conditions. Durable
construction permits conventional installation practices. The transmitter should be installed in an
environment consistent with the ratings of the enclosure. All wiring to and from the transmitter must be put
in grounded metal conduit or equivalent. Mounting must use the mounting points indicated in Figure 2-1.
No ventilation is required, other than that which is necessary to meet the ambient temperature requirements.
2.1.1 Transmitter Mounting
For installation, simply uncrate the delivered transmitter (please note the weight of your transmitter in
Section 1.2.1 for proper handling). Use the indicated mounting points for mounting the units. Select
bolts/hardware appropriate for the unit’s weight. Consider site seismic requirements.
Use 5/16 inch bolts/hardware (or equal) on at least the 4 top and 4 bottom mounting points for the
LEFM 2010FE Transmitter and torque to 18 ft/lbs.
The mounting hardware must be capable of handling 4 times the transmitter’s weight or
approximately 140 lbs (63.6 kg). This should be verified by the site installation team (EN61010).
The transmitter should be mounted at a convenient working height. (The recommended height is the
bottom of the transmitter at about 4 feet (1.2 meters) from the floor.)

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Installation Page 8 February 2014
2.1.2 Field Terminations
The wiring should be routed to the transmitter in shielded conduit that meets site environment
specifications. All terminations should be made according to Table 2-1 through Table 2-6.
For full environmental temperature range, all wiring (conductors) into and out of the transmitter should be
rated as follows:
Temperature range - minimum of 176°F (80°C).
All supply wiring must be rated to 300 volts AC (18 AWG).
Equipment must be installed by a licensed electrician, in accordance with NEC/CEC and local
codes.
As a minimum, a disconnect switch should be installed before and near the transmitter. The
external disconnect device must be an approved device rated for the supply voltages and is rated to 3
Amps for 120 VAC or 240 VAC and provide a minimum of 3.0 mm spacing. This remote
disconnect should be marked as the disconnect to the Transmitter.
Figure 2-1 illustrates the conduit connections for the LEFM 2010FE Transmitter and the transmitter layout.
Transducer termination guide is defined in Table 2-1. Metering section transducers are defined in acoustic
pairs, path 1 through path 8, and designated as upstream or downstream with respect to typical flow
direction. Each transducer has a positive and negative lead and a shield wire.
2.1.2 RS-485 Communication
Serial communications is RS-485. Table 2-6 shows pin out for serial communications. The system also has
the option for Ethernet connectivity using two RJ45 jacks. Each of the communication ports (Channel 1 and
Channel 2) can be configured for either serial or Ethernet using the switches 1 and 2 located on the
datalogger board.
2.1.3 Grounding/Earthing
The transmitter has grounding/earthing points available. Site guidelines are to be followed regarding
grounding/earthing. Transducer cable shields are to be grounded in the transmitter, but not at the
transducers. Shielding through the transmitter terminal blocks avoids undesirable ground loops. Note that
some installations may use transformers to match other vendor’s transducers (single ended transducers). In
these installations, the shield termination may not be landed.
2.1.4 Digital Outputs
The LEFM 2010FE Transmitter is a bidirectional meter and has two digital output options that indicate
direction. The first is quadrature pulse output to indicate direction of flow (reference Table 2-4).
Quadrature output uses two pulse outputs (A and B). Pulse output A leading pulse output B by 90° indicates
forward flow while pulse output B leading pulse output A by 90° indicates reverse flow with respect to the
flow arrow of the nameplate. The second is a level indication that is driven by direction (output "Hi" for
positive flow and "Lo" for negative flow).

LEFM 2010FE Transmitter User Manual IB1009 Rev. 7
February 2014 Page 9 Installation
Figure 2-1: Transmitter Enclosure (units in inches, [mm])

IB1009 Rev. 7 LEFM 2010FE Transmitter User Manual
Installation Page 10 February 2014
Figure 2-2: Electronics with Door Open
Circuit Breaker – ON to the LEFT, OFF to the RIGHT
On/Off
Breaker
See Figure 2-2A
Transducers
RTD
Analog I/O
RS
-
485
Digital I/O
Power

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February 2014 Page 11 Installation
Figure 2-2a – Transmitter Assembly Board
Top View
Power
Supply
Check
± 12Vdc
± 5 Vdc
Jumper
“2” wire – RS485 “4” wire – RS485
E1 (pins 1&2) E1 (pins 3&2)
E2 (pins 1&2) E2 (pins 3&2)
Indicates Unit
Operating

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Installation Page 12 February 2014
Table 2-1: LEFM 2010FE Transducer Terminations
(For 8 acoustic paths)
Transducer Path Name Cable Identification Transmitter Termination
Wire Name Device Terminal
Diagonal Path 1 UP + BPL-TB1 1
Shield BPL-TB1 2
- BPL-TB1 3
Cross Path 1 UP + BPL-TB1 4
Shield BPL-TB1 5
- BPL-TB1 6
Diagonal Path 2 UP + BPL-TB1 7
Shield BPL-TB1 8
- BPL-TB1 9
Cross Path 2 UP + BPL-TB1 10 Shield BPL-TB1 11
- BPL-TB1 12
Diagonal Path 1 DN + BPL-TB1 13 Shield BPL-TB1 14
- BPL-TB1 15
Cross Path 1 DN + BPL-TB1 16 Shield BPL-TB1 17
- BPL-TB1 18
Diagonal Path 2 DN + BPL-TB1 19 Shield BPL-TB1 20
- BPL-TB1 21
Cross Path 2 DN + BPL-TB1 22
Shield BPL-TB1 23
- BPL-TB1 24
Diagonal Path 3 UP + BPL-TB2 1
Shield BPL-TB2 2
- BPL-TB2 3
Cross Path 3 UP + BPL-TB2 4
Shield BPL-TB2 5
- BPL-TB2 6
Diagonal Path 4 UP + BPL-TB2 7
Shield BPL-TB2 8
- BPL-TB2 9
Cross Path 4 UP + BPL-TB2 10 Shield BPL-TB2 11
- BPL-TB2 12
Diagonal Path 3DN + BPL-TB2 13 Shield BPL-TB2 14
- BPL-TB2 15
Cross Path 3 DN + BPL-TB2 16 Shield BPL-TB2 17
- BPL-TB2 18
Diagonal Path 4 DN + BPL-TB2 19 Shield BPL-TB2 20
- BPL-TB2 21
Cross Path 4 DN + BPL-TB2 22
Shield BPL-TB2 23
- BPL-TB2 24

LEFM 2010FE Transmitter User Manual IB1009 Rev. 7
February 2014 Page 13 Installation
Table 2-2: LEFM 2010FE Transducer Terminations
(For 4 acoustic paths)
Transducer Path Name
(when using DPs) Transducer Path Name (when using DPs & CPs) Cable Identification Transmitter Termination
Wire Name Device Terminal
Diagonal Path 1 UP Diagonal Path 1 UP
+ BPL-TB1 1
Shield BPL-TB1 2
- BPL-TB1 3
Diagonal Path 2 UP Cross Path 1 UP
+ BPL-TB1 4
Shield BPL-TB1 5
- BPL-TB1 6
Diagonal Path 3 UP Diagonal Path 2 UP
+ BPL-TB1 7
Shield BPL-TB1 8
- BPL-TB1 9
Diagonal Path 4 UP Cross Path 2 UP
+ BPL-TB1 10
Shield BPL-TB1 11
- BPL-TB1 12
Diagonal Path 1 DN Diagonal Path 1 DN
+ BPL-TB1 13
Shield BPL-TB1 14
- BPL-TB1 15
Diagonal Path 2 DN Cross Path 1 DN
+ BPL-TB1 16
Shield BPL-TB1 17
- BPL-TB1 18
Diagonal Path 3 DN Diagonal Path 2 DN
+ BPL-TB1 19
Shield BPL-TB1 20
- BPL-TB1 21
Diagonal Path 4 DN Cross Path 2 DN
+ BPL-TB1 22
Shield BPL-TB1 23
- BPL-TB1 24

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Installation Page 14 February 2014
Analog Input
Source RTD Connections 0, 4-20mA Connection
Description Terminus Description Terminus
Analog Input 1 0, 4-20mA + BPL-TB4-1 0, 4-20mA - BPL-TB4-2
Chassis Ground BPL-TB4-3
Analog Input 2 0, 4-20mA + BPL-TB4-7 0, 4-20mA - BPL-TB4-8
Chassis Ground BPL-TB4-9
Fluid Temperature
RTD - BPL-TB3-1
RTD + BPL-TB3-2
RTD - BPL-TB3-3
RTD + BPL-TB3-4
Chassis Ground BPL-TB3-5
Table 2-3: Analog Input Customer Connection Locations
(Located on Backplane)
Note: TP4 on the IOB can be used to verify analog input value
Typical
Analog Output* Signal Description Terminus
Analog Output 1
Flow (0)
4,0-20 mA + (high) TB4-4
4,0-20 mA– (low) TB4-5
Shield TB4-6
Analog Output 2
Flow (38)
4,0-20 mA + (high) TB4-10
4,0-20 mA– (low) TB4-11
Shield TB4-12
Table 2-4: Analog Output Customer Connection Locations (Located on Backplane)
*Note: Other variables can be mapped to the analog outputs (reference Cameron Modbus manual).

LEFM 2010FE Transmitter User Manual IB1009 Rev. 7
February 2014 Page 15 Installation
Name Signal Description Terminus
Pulse A +V, Indicates forward flow BPL-TB6-1
GND5 Signal Ground BPL-TB6-2
Pulse B or
Direction
+V, Pulse 90 degrees phase shift to Pulse A
If phase lags (positive flow) - if phase leads (negative flow)
Direction: +V indicates reverse flow, 0 Indicates positive flow BPL-TB6-3
GND5 Signal Ground BPL-TB6-4
GND Chassis Ground BPL-TB6-5
Status +0V, Indicates alarm condition
+V, Indicates normal operation BPL-TB6-6
GND5 Signal Ground BPL-TB6-7
GND Chassis Ground BPL-TB6-8
Table 2-5: Pulse and Digital Output Wiring
Note: +V can be either 5 volts or 12 volts by moving the jumper E1 on the IOB board. When positions
1 & 2 are jumpered the output is 5 volts, when positions 2 & 3 are jumpered the output is 12 volts.
Power
Connectivity Description Terminus
120 VAC
LINE XMT-TB2-1
Neutral/Return XMT-TB2-2
Ground/Earth XMT-TB2-3
24 VDC
+24 VDC XMT-TB2-1
24 VDC Return XMT-TB2-2
Ground/Earth XMT-TB2-3
240 VAC
LINE 1 XMT-TB2-1
LINE 2 XMT-TB2-2
Ground/Earth XMT-TB2-3
Table 2-6: Power Connections
(Only one type of power should be connected)

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Port
Name Termination RS-485 Full Duplex* E1, E2 Jumpered 2-3 RS-485 Half Duplex* E1, E2 Jumpered 1-2
COM1
BPL-TB5-1 A, Noninverting Receive (+Rx)
BPL-TB5-2 B, Inverting Receive (-Rx)
BPL-TB5-3 Signal Ground
BPL-TB5-4 Y, Noninverting Transmit (+Tx) Y, Noninverting Transmit/Receive (+Data)
BPL-TB5-5 Z, Inverting Transmit (-Tx) Z, Inverting Transmit/Receive (-Data)
BPL-TB5-6 Chassis Ground
COM2
BPL-TB5-7 A, Noninverting Receive (+Rx)
BPL-TB5-8 B, Inverting Receive (-Rx)
BPL-TB5-9 Signal Ground
BPL-TB5-10 Y, Noninverting Transmit (+Tx) Y, Noninverting Transmit/Receive (+Data)
BPL-TB5-11 Z, Inverting Transmit (-Tx) Z, Inverting Transmit/Receive (-Data)
BPL-TB5-12 Chassis Ground
Table 2-7: RS-485 Serial Communications
* Jumpering E1 (COM1) and E2 (COM2) on the transmitter backplane board to positions 1-2 selects half
duplex mode. Jumpering E1 (COM1) and E2 (COM2) on the transmitter backplane board to positions 2-3
selects full duplex mode (reference Figure 2-2A).