LMI Excel XR Series User manual

Excel
®
XR Series
Electronic Metering Pump
Modbus RTU
Manual
Manual No.: 55312
Revision
: 04
Rev. Date:
03/2020
Note:
For basic control features see manual 54630 and
enhanced
control features see manual
54772

Table of Contents
1.0 Precautions.......................................................................................3
2.0 Introduction ......................................................................................5
2.1 Specifications.................................................................................................. 5
3.0 Local Operation ................................................................................5
3.1 Display Navigation .......................................................................................... 6
3.2 Settings ........................................................................................................... 6
3.2.1 Modbus Communication Settings............................................................ 7
4.0 Modbus Software Definition ............................................................8
4.1 Supported Modbus RTU Functions ................................................................. 8
4.2 Modbus Coil Addresses .................................................................................. 9
4.3 Modbus Holding Register Addresses ............................................................ 10
4.4 Modbus Input Registers ................................................................................ 15
4.5 Modbus Discrete Inputs ................................................................................ 17
4.6 Modbus Alarm Discrete Inputs ...................................................................... 19
5.0 Cable Wiring ...................................................................................19
6.0 Troubleshooting .............................................................................21
Table of Figures
Figure 1: Display Navigation ........................................................................................... 6
Figure 2: Settings ............................................................................................................ 6
Figure 3: Communication Settings .................................................................................. 7
Figure 4: Connector C Pin Diagram .............................................................................. 20

PRECAUTIONS
1.0 Precautions
The following precautions should be taken when working with LMI metering pumps.
Please read this section carefully prior to installation.
Protective Clothing
ALWAYS wear protective clothing, face shield, safety glasses and gloves when working on or
near your metering pump. Additional precautions should be taken depending on the solution
being pumped. Refer to Safety Data Sheets (SDS) precautions from your solution supplier.
Water Pre-Prime
All LMI pumps are pre-primed with water when shipped from the factory. If your solution is not
compatible with water, disassemble the Pump Head Assembly. Thoroughly dry the pump head,
valves, O-rings, balls and diaphragm. Reassemble head assembly tightening screws in a
crisscross pattern. Refill the pump head with the solution to be pumped before priming the
pump. (This will aid in priming.)
Liquid Compatibility
CAUTION: The evaluation performed by ETL was tested with water only. The pumps are
certified to NSF 61 with: sodium hypochlorite (12.5%), sulfuric acid (98.5%), sodium hydroxide
(50%), and hydrochloric acid (30%). Determine if the materials of construction included in the
liquid handling portion of your pump are adequate for the solution (chemical) to be pumped.
Always refer to the solution supplier and the LMI Chemical Resistance Chart for compatibility of
your specific LMI metering pump. Contact your local LMI distributor for further information.
Tubing Connections
Inlet and outlet tubing or pipe sizes must not be reduced. Outlet tubing size must not be
increased. Make certain that all tubing is SECURELY ATTACHED to fittings prior to start-up (see
section 3.3 Tubing Connections). ALWAYS use LMI supplied tubing with your pump, as the
tubing is specifically designed for use with the pump fittings. It is recommended that all tubing be
shielded and secure to prevent possible injury in case of rupture or accidental damage. If tubing
is exposed to sunlight, black UV resistant tubing should be installed. Check tubing frequently for
cracks and replace as necessary.
Fittings and Machine Threads
All fittings should be hand-tightened. An additional 1/8 - 1/4 turn after the fitting is snug may be
necessary to provide a leak-proof seal. Excessive overtightening or use of a pipe wrench can
cause damage to the fittings, seals, or pump head.
Most LMI pumps have straight screw machine threads on the head and fittings and are sealed
by the O-rings. DO NOT use PTFE tape or pipe dope to seal these threads. PTFE Tape may
only be used on NPT threads.
Plumbing
Always adhere to your local plumbing codes and requirements. Be sure installation does not
constitute a cross connection. Check local plumbing codes for guidelines. LMI is not responsible
for improper installations.

PRECAUTIONS
Back Pressure/Anti-Syphon Valve
If you are pumping downhill or into low or no system pressure, a backpressure /anti-syphon
device should be installed to prevent over pumping or syphoning. Contact your LMI distributor
for further information.
Electrical Connections
WARNING: To reduce the risk of electrical shock, the metering pump must be plugged into a
properly grounded grounding-type receptacle with ratings conforming to the data on the pump
control panel. The pump must be connected to a good ground. Do not use adapters! All wiring
must conform to local electrical codes. If the supply cord is damaged, it must be replaced by the
manufacturer, stocking distributor, or authorized repair center in order to avoid a hazard.
Fuse and Battery
CAUTION: Battery may explode if mistreated. Do not recharge, disassemble or dispose of in fire.
The battery and fuse are internal, factory serviceable parts, and must be replaced by the factory
or a qualified distributor with parts of the same type and rating.
Flooding
WARNING: Install this pump in a location where flooding cannot occur.
Ground Fault Circuit Interrupter
WARNING: To reduce the risk of electric shock, install only on a circuit protected by a Ground
Fault Circuit Interrupter (GFCI).
Line Depressurization
To reduce the risk of chemical splash during disassembly or maintenance, all installations
should be equipped with line depressurization capability.
Over Pressure Protection
To ensure safe operation of the pump it is recommended that some type of safety / pressure-
relief valve be installed to protect the piping and other system components from failing due to
excessive pressure.
Chemical Concentration
There is a potential for elevated chemical concentration during periods of no flow, for example,
during backwash in the system. Steps, such as turning the pump off, should be taken during
operation or installation to prevent this.
See your distributor about other external control options to help mitigate this risk.
Retightening Components
Plastic materials will typically exhibit creep characteristics when under pressure over a period of
time and to insure a proper fit it may be necessary to retighten the head bolts periodically. To
insure proper operation, we recommend tightening the bolts to 25 inch-pounds after the first
week of operation and on a monthly basis thereafter.

INTRODUCTION
Flow Display
The accuracy of the flow value as shown on the pump display is highly dependent on the
specific application. Calibration is necessary in order to display an accurate measure of the flow.
Spills
CAUTION: Spills of Dangerous chemicals should be cleaned up immediately.
2.0 Introduction
LMI's metering pumps deliver the highest level of repetitive accuracy and reliability
with the capability to pump a wide range of chemicals. Our comprehensive selection
of pumps means you get the right pump for the right application. Every one of our
pumps is engineered to exceed expectations and is backed by a global network of
highly trained field engineers and aftersales support.
This manual assumes the reader is familiar with commissioning and programming
Modbus RTU devices.
2.1 Specifications
Table 1: Modbus RTU Specifications
Modbus RTU Connector 5 Pin Reverse Key Female M12 (B-Code)
Maximum Cable Length 1200 meters at 9.6 Kbits/s
1000 meters at 115.2 Kbits/s
Slave Address Range 1-125
Line Termination On/Off (Software Configurable)
Supported transmission speeds 9600, 19200, 38400, 115200 (selectable or
automatically detected)
Stop Bits 1 or 2 (Software Configurable)
Parity Even, Odd, or None (Software Configurable)
3.0 Local Operation
This manual covers basic features supported in the Excel®XR Series pumps and complete
descriptions of Modbus features.

LOCAL OPERATION
3.1 Display Navigation
Navigation through display screens is done using the Up, Down,and Multi-Function
buttons. The settings screen is shown in the example below (
Figure 1). The scroll bar on the side of the display screen indicates there are more settings
available on another page.
Figure 1: Display Navigation
3.2 Settings
To access the settings screen (Figure 2) press Settings in the home screen. Navigate
to the function desired and press Enter . Follow the prompts to enter new settings. New
settings will need to be saved by pressing Save . Press Exit to return to the
previous screen without saving.
Figure 2: Settings
Scroll Bar
Multi-Function Icons

LOCAL OPERATION
3.2.1 Modbus Communication Settings
From the Settings screen, navigate to the Communication Settings icon and press Enter
. The Communication Settings screen (Figure 3) will allow for the following settings to
be adjusted:
•The Slave Address can be configured via software in the range of 1-125.
•The Bit Rate can be selected as 9600, 19200, 38400, 115200, or Auto. If the
network bit rate is known, it is recommended to manually select the bit rate. If
Auto is selected, the Excel®XR Pump will change its bit rate for each message
that cannot be read until the correct bit rate is detected. As a result, the first few
commands may fail in autobaud mode.
•Parity can be configured as No Parity, Even Parity, or Odd Parity
•Stop Bits can be configured as 1 Stop Bit or 2 Stop Bits.
•The Internal Line Termination can also be enabled/disabled on this screen. The
final device on the communication bus must have line termination enabled. This
can be accomplished externally or using the software enabled internal line
termination. The Internal Line Termination will engage the following internal
termination resistors:
•562 Ohm between +5V and D1 (Positive Data Signal)
•121 Ohm between D0 (Negative Data Signal) and D1 (Positive Data Signal)
•562 Ohm between DGND and D0 (Negative Data Signal)
Figure 3: Communication Settings

MODBUS SOFTWARE DEFINITION
4.0 Modbus Software Definition
Start Hex
Address
Quantity Type Description
0x0001 14 Coils Coils are used to execute basic commands such as
toggling on/off status, setting operating mode, or setting
units.
0x0001 76 Holding Registers Holding Registers are 2 bytes each and used to
read/write data such as flow rate, time, and setting
values.
0x0001 27 Discrete Inputs Discrete Inputs are read-only bits used to determine the
status of items such as on/off status, current operation
mode, digital I/O status, or homescreen display.
0x0065 11 Discrete Inputs Discrete Inputs are read-only bits and this range is used
to determine the status of alarms. Each alarm has its
own discrete input bit that can be monitored.
0x0001 43 Input Registers Input Registers are read-only and are used for general
information such as current flow rate, analog I/O values,
totalizer information, and firmware revisions.
4.1 Supported Modbus RTU Functions
Code Hex Name Description
01 0x01 Read Coil Status Read the status of contiguous coils.
02 0x02 Read Discrete Inputs Read the status of contiguous discrete inputs.
03 0x03 Read Holding Registers Read the contents from a contiguous block of
holding registers.
04 0x04 Read Input Register Read the contents from a contiguous block of input
registers.
05 0x05 Write Single Coil Write the status of a single coil.
06 0x06 Write Single Holding Register Write the contents a single holding register.
07 0x07 Read Exception Status Read the exception status for the following
Exception Codes:
01: ILLEGAL FUNCTION
02: ILLEGAL DATA ADDRESS
03: ILLEGAL DATA VALUE
15 0x0F Write Multiple Coils Write the status of contiguous coils.
16 0x10 Write Multiple Registers Write the contents of contiguous holding registers.
17 0x11 Report Server ID Read the device slave ID.

MODBUS SOFTWARE DEFINITION
4.2 Modbus Coil Addresses
Coils are read/write single bit data fields. The coil can be set to 0xFF00 (ON) or to 0x0000
(OFF). Coils are read with Function 01 (0x01) Read Coils and written with Function 05
(0x05) Write Single Coil or Function 15 (0x0F) Write Multiple Coils.
Note that PLC Addressing (Base 1) is used.
Dec Hex Function Description
1 0x0001 On/Off Set ON to toggle the On/Off status
2 0x0002 Prime Set ON to initiate the prime sequence. Set OFF to end
the prime sequence.
3 0x0003 100Pct Set ON to run the pump at 100%. Set OFF to end the
prime sequence.
4 0x0004 Force Internal / External
Mode
Set ON to force Internal Control Mode. Set OFF force
External Control Mode. The specific mode for each
internal and external are configured in settings on the
pump or by using Modbus Holding Registers 0x0048
and 0x0049.
5 0x0005 Force Home Set ON to force the pump to return to the homescreen
on the display
6 0x0006 Manual Operation Mode Set ON to select the Manual Operation Mode
7 0x0007 Analog Operation Mode Set ON to select the Analog Operation Mode
8 0x0008 Pulse Operation Mode Set ON to select the Pulse Operation Mode
9 0x0009 Batch Operation Mode Set ON to select the Batch Operation Mode
10 0x000A Cycle Operation Mode Set ON to select the Cycle Timer Operation Mode
11 0x000B Timed Event Operation
Mode
Set ON to select the Timed Event Operation Mode
12 0x000C Slow Mode Set ON to enable Slow Mode. Set OFF to disable Slow
Mode.
13 0x000D Units Set ON to select Metric units. Set OFF to select English
units
14 0x000E Reset User Totalizer Set ON to reset the user totalizer
16 0x0010 Start Batch Set ON to start a batch while the pump is

MODBUS SOFTWARE DEFINITION
4.3 Modbus Holding Register Addresses
The Holding Registers are read-write data fields with messages packed as two bytes per
register, with the binary contents right justified within each byte. For each register the first
byte contains the high-order bits, and the second contains the low-order bits. Holding
Registers are read with Function 03 (0x03) Read Holding Registers and written with
Function 06 (0x06) Write Single Register or Function 16 (0x10) Write Multiple Registers.
The request specifies the starting address and the number of registers to read. If a function
spans multiple registers, the first register contains the high order value.
Note that PLC Addressing (Base 1) is used.
Dec Hex Function Description
1
0x0001
Flow Rate for Manual
Mode
Read/write the flowrate for manual mode as a four digit
integer that represents XX.XX GPH/LPH format. The
range is 0000-9999.
2
0x0002
Flow Rate for Prime Mode
Read/write the prime mode flow rate XX.XX GPH/LPH
format. The range is 0000-9999.
3
0x0003
Prime Mode Duration
Read/write the prime mode duration in seconds (1-
3600).
4
0x0004
Power Loss Mode
Read/write the Power Loss Setting as an enumeration:
0: Resume Operation
1: Stay Idle
2: Run at a configured speed
5
0x0005
Power Loss Resume Speed
Read/write the Power Loss Resume Speed as XX.XX
GPH/LPH format. The range is 0000-9999. This
flowrate is applied on power up if the power loss option
is set to 'Run at a configured speed'.
6
0x0006
Slow Mode Setpoint
Read/write the Slow Mode Setpoint as a percentage in
the range of 10-90 in increments of 10.
7
0x0007
RTC Date
Read/write the Date.RTC_DATE has the year month
and date packed into a 16bit word: 7bits for the Year,
4bits for the Month, 5bits for the day.
Ex 9463 = 7/23/18
5 least significant bits are the day (10111 = 23)
4 next least significant bits are the month (0111 = 7)
7 most significant bits are the year (0010010 = 18)
8
0x0008
RTC Hour
Read/write the Hour in the Real Time Clock as an
integer (1-12).
9
0x0009
RTC Minute
Read/write the Minutes in the Real Time Clock as an
integer (0-60).
10
0x000A
RTC Second
Read/write the Seconds in the Real Time Clock an
integer (0-60).
11
0x000B
RTC AM/PM
Read/write AM/PM in the Real Time Clock an
enumeration (0 = AM, 1 = PM).
12
0x000C
Pulse Mode Count
Read/write the Pulse Mode Count setting as an integer
with a valid range of 1 – 10000. This is used to
determine the number of pulses to receive for each
delivery.

MODBUS SOFTWARE DEFINITION
13
0x000D
,
0x000E
Pulse Mode Volume
Read/write the volume to deliver in Pulse Mode as an
integer with a valid range is 0.0 to 10000.00. This
value spans two registers.
15
0x000F
Pulse Mode Units
Read/write the units setting for Pulse Mode
enumeration (0=Small, 1=Large). Large will use
Gallons or Liters based on global units setting. Small
will use fl oz. or mL based on global units setting.
16
0x0010
Pulse Mode Pulse Width
Read/write the pulse width for Pulse Mode as an
integer representing msec. The valid range is 4 - 60 in
increments of 4.
17
0x0011
Batch Mode Volume
Read/write the volume to deliver in Batch Mode with a
valid range of 0.0 to 10000.00. This value spans two
registers.
19
0x0013
Batch Mode Time
Read/write the dosing time for Batch Mode with a valid
range of 1-86400 Seconds. This value spans two
registers.
21
0x0015
Batch Mode Units
Read/write the units setting for Batch Mode as an
enumeration (0=Small, 1=Large). Large will use
Gallons or Liters based on global units setting. Small
will use fl oz. or mL based on global units setting.
22
0x0016
Batch Mode Pulse Width
Read/write the pulse width for Batch Mode as an
integer representing msec. The valid range is 4 - 60 in
increments of 4.
23
0x0017
Batch Mode Accumulate
Read/write the Pulse Accumulator for Batch Mode as
an enumeration (0 = Off, 1 = On).
24
0x0018
Analog Mode P1 Volume
Read/write the flowrate for P1 in Analog Mode as an
integer representing XX.XX GPH/LPH format. The
range is 0000-9999.
25
0x0019
Analog Mode P1 Current
Read/write the Current for P1 in Analog Mode as an
integer representing XX.X mA. The valid range is 0.0-
20.0.
26
0x001A
Analog Mode P2 Volume
Read/write the flowrate for P2 in Analog Mode as an
integer representing XX.XX GPH/LPH format. The
range is 0000-9999.
27
0x001B
Analog Mode P2 Current
Read/write the Current for P2 in Analog Mode as an
integer representing XX.X mA. The valid range is 0.0-
20.0.
28
0x001C
Cycle Mode Cycle Time
Read/write the Cycle Time for Cycle Timer Mode as an
integer representing minutes with a valid range of 1-
1439.
29
0x001D
Cycle Mode Duration
Read/write the Duration for Cycle Timer Mode as an
integer representing minutes with a valid range of 1-
1439 The Duration is the inactive period in Cycle
Mode.
30
0x001E
Cycle Mode Delay
Read/write the Delay Time for Cycle Timer Mode as
an integer representing minutes with a valid range of
0-1439. The Delay Timer is the first inactive period
prior to starting the cycle.
31
0x001F
Cycle Mode Flow
Read/write the flowrate for Cycle Timer Mode as an
integer representing XX.XX GPH/LPH format. The
range is 0000-9999.
32
0x0020
Timed Event Day
Read/write the Day of the Week for Timed Event Mode
as an integer (1-7) that represents a day of the week.

MODBUS SOFTWARE DEFINITION
This must be set prior to configuring event parameters.
The other timed events will be based on the set day.
33
0x0021
Timed Event1 Start Time
Hour
Read/write the Hour for Timed Event 1 on the currently
set day for Timed Event Mode as an integer (1-12).
34
0x0022
Timed Event1 Start Time
Minute
Read/write the Minutes for Timed Event 1 on the
currently set day for Timed Event Mode as an integer
(0-60).
35
0x0023
Timed Event1 Start Time
AM/PM
Read/write AM/PM for Timed Event 1 on the currently
set day for Timed Event Mode as an enumeration (0 =
AM, 1 = PM).
36
0x0024
Timed Event1 Duration
Read/write the duration for Timed Event 1 on the
currently set day for Timed Event Mode an integer
representing minutes with a valid range of 1-1439.
37
0x0025
Timed Event1 Flow
Read/write the flowrate for Timed Event 1 on the
currently set day for Timed Event Mode as an integer
representing XX.XX GPH/LPH format. The range is
0000-9999.
38
0x0026
Timed Event1 Enabled
Read/write the status of Timed Event 1 on the
currently set day for Timed Event Mode as an
enumeration (0 = OFF, 1 = ON).
39
0x0027
Timed Event2 Start Time
Hour
Read/write the Hour for Timed Event 2 on the currently
set day for Timed Event Mode as an integer (1-12).
40
0x0028
Timed Event2 Start Time
Minute
Read/write the Minutes for Timed Event 2 on the
currently set day for Timed Event Mode as an integer
(0-60).
41
0x0029
Timed Event2 Start Time
AM/PM
Read/write AM/PM for Timed Event 2 on the currently
set day for Timed Event Mode as an enumeration (0 =
AM, 1 = PM).
42
0x002A
Timed Event2 Duration
Read/write the duration for Timed Event 2 on the
currently set day for Timed Event Mode as an integer
representing minutes with a valid range of 1-1439.
43
0x002B
Timed Event2 Flow
Read/write the flowrate for Timed Event 2 on the
currently set day for Timed Event Mode as an integer
representing XX.XX GPH/LPH format. The range is
0000-9999.
44
0x002C
Timed Event2 Enabled
Read/write the status of Timed Event 2 on the
currently set day for Timed Event Mode as an
enumeration (0 = OFF, 1 = ON).
45
0x002D
Timed Event3 Start Time
Hour
Read/write the Hour for Timed Event 3 on the currently
set day for Timed Event Mode as an integer (1-12).
46
0x002E
Timed Event3 Start Time
Minute
Read/write the Minutes for Timed Event 3 on the
currently set day for Timed Event Mode as an integer
(0-60).
47
0x002F
Timed Event3 Start Time
AM/PM
Read/write AM/PM for Timed Event 3 on the currently
set day for Timed Event Mode as an enumeration (0 =
AM, 1 = PM).
48
0x0030
Timed Event3 Duration
Read/write the duration for Timed Event 3 on the
currently set day for Timed Event Mode as an integer
representing minutes with a valid range of 1-1439.
49
0x0031
Timed Event3 Flow
Read/write the flowrate for Timed Event 3 on the
currently set day for Timed Event Mode as an integer
representing XX.XX GPH/LPH format. The range is
0000-9999.

MODBUS SOFTWARE DEFINITION
50
0x0032
Timed Event3 Enabled
Read/write the status of Timed Event 3 on the
currently set day for Timed Event Mode as an
enumeration (0 = OFF, 1 = ON).
51
0x0033
Timed Event4 Start Time
Hour
Read/write the Hour for Timed Event 4 on the currently
set day for Timed Event Mode as an integer (1-12).
52
0x0034
Timed Event4 Start Time
Minute
Read/write the Minutes for Timed Event 4 on the
currently set day for Timed Event Mode as an integer
(0-60).
53
0x0035
Timed Event4 Start Time
AM/PM
Read/write AM/PM for Timed Event 4 on the currently
set day for Timed Event Mode as an enumeration (0 =
AM, 1 = PM).
54
0x0036
Timed Event4 Duration
Read/write the duration for Timed Event 4 on the
currently set day for Timed Event Mode as an integer
representing minutes with a valid range of 1-1439.
55
0x0037
Timed Event4 Flow
Read/write the flowrate for Timed Event 4 on the
currently set day for Timed Event Mode as an integer
representing XX.XX GPH/LPH format. The range is
0000-9999.
56
0x0038
Timed Event4 Enabled
Read/write the status of Timed Event 4 on the
currently set day for Timed Event Mode as an
enumeration (0 = OFF, 1 = ON).
57
0x0039
Digital Input 1 Config
Read/write the configuration for Digital Input 1 an
enumeration with a range 0-5:
0: Digital Input = Disabled
1: Digital Input = RemoteOnOff
2: Digital Input = FloatSwitch_Empty
3: Digital Input = FloatSwitch_Low
4: Digital Input = RemoteIntExtMode
5: Digital Input = PacingPulse
58
0x003A
Digital Input 1 State
Read/write the Contact State for Digital Input 1 as an
integer representing an enumeration (0=NO - Normally
Open, 1=NC - Normally Closed).
59
0x003B
Digital Input 2 Config
Read/write the configuration for Digital Input 2 an
enumeration with a range 0-5:
0: Digital Input = Disabled
1: Digital Input = RemoteOnOff
2: Digital Input = FloatSwitch_Empty
3: Digital Input = FloatSwitch_Low
4: Digital Input = RemoteIntExtMode
5: Digital Input = PacingPulse
60
0x003C
Digital Input 2 State
Read/write the Contact State for Digital Input 2 as an
integer representing an enumeration (0=NO - Normally
Open, 1=NC - Normally Closed).
61
0x003D
Digital Input 3 Config
Read/write the configuration for Digital Input 3 an
enumeration with a range 0-5:
0: Digital Input = Disabled
1: Digital Input = RemoteOnOff
2: Digital Input = FloatSwitch_Empty
3: Digital Input = FloatSwitch_Low
4: Digital Input = RemoteIntExtMode
5: Digital Input = PacingPulse
62
0x003E
Digital Input 3 State
Read/write the Contact State for Digital Input 3 as an
integer representing an enumeration (0=NO - Normally
Open, 1=NC - Normally Closed).

MODBUS SOFTWARE DEFINITION
63
0x003F
Digital Input 4 Config
Read/write the configuration for Digital Input 4 an
enumeration with a range 0-5:
0: Digital Input = Disabled
1: Digital Input = RemoteOnOff
2: Digital Input = FloatSwitch_Empty
3: Digital Input = FloatSwitch_Low
4: Digital Input = RemoteIntExtMode
5: Digital Input = PacingPulse
64
0x0040
Digital Input 4 State
Read/write the Contact State for Digital Input 4 as an
integer representing an enumeration (0=NO - Normally
Open, 1=NC - Normally Closed).
65
0x0041
Analog Input 1 Config
Read/write the configuration for Analog Input 1 as an
enumeration:
0: Analog Input = Disabled
1: Analog Input = Pacing
2: Analog Input = Level
66
0x0042
Analog Input 2 Config
Read/write the configuration for Analog Input 2 as an
enumeration:
0: Analog Input = Disabled
1: Analog Input = Pacing
2: Analog Input = Level
67
0x0043
Digital Output 1 Config
Read/write the configuration for Digital Output 1 as an
enumeration:
0: Digital Output = Disabled
1: Digital Output = StrokePulse
2: Digital Output = PumpRunning
3: Digital Output = PumpStandby
4: Digital Output = AlarmOut
5: Digital Output = INTEXTMode
6: Digital Output = UserAlarmOut
7: Digital Output = PumpStopped
8: Digital Output = TimedEvent
68
0x0044
Digital Output 1 State
Read/write the Contact State for Digital Output 1 as an
enumeration:
0=NO - Normally Open
1=NC - Normally Closed
69
0x0045
Digital Output 2 Config
Read/write the configuration for Digital Output 2 as an
enumeration:
0: Digital Output = Disabled
1: Digital Output = StrokePulse
2: Digital Output = PumpRunning
3: Digital Output = PumpStandby
4: Digital Output = AlarmOut
5: Digital Output = INTEXTMode
6: Digital Output = UserAlarmOut
7: Digital Output = PumpStopped
8: Digital Output = TimedEvent
70
0x0046
Digital Output 2 State
Read/write the Contact State for Digital Output 2 as an
enumeration:
0=NO - Normally Open
1=NC - Normally Closed
71
0x0047
Analog Output Config
Read/write the configuration for the Analog Output as
an enumeration:

MODBUS SOFTWARE DEFINITION
0: Analog Output = Disabled
1: Analog Output = Flow
2: Analog Output = MirrorInput
72
0x0048
Remote Internal Mode
Read/write the operation mode that is assigned to
Internal Control as an enumeration:
0 = Manual
1 = Cycle Timer
2=Weekly Timer).
73
0x0049
Remote External Mode
Read/write the operation mode that is assigned to
External Control as an enumeration:
0= mA
1= Pulse
2 = Batch
74
0x004A
Lock Style
Read/write the Keypad Lock Style as an enumeration:
1=No_Lock
2=All_Lock
3=All_Lock_Power_Unlock
4=All_Lock_Password
75
0x004B
Password
Read/write the Password as an integer with a range of
0000-9999.
76
0x004C
User Alarm Mask
Read/write the configuration for the User Alarm Mask
as a bitmask with a high bit to indicate the status of
each item:
Bit 0 - Reserved
Bit 1 - Reserved
Bit 2 - Tank Empty
Bit 3 - Tank Low
Bit 4 - Internal System Error
Bit 5 - Motor Stall
Bit 6 - Analog Loss of Signal
Bit 7 - Analog Overrange
Bit 8 - Motor Homing Error
Bit 9 - Pulse Signal not Present
Bit 10 - Pulse Signal Overrange
NOTE: Setting a bit high will cause the associated
alarm to trigger the user alarm.
77
0x4D
Stayprime Enabled
Read/write Stay Prime mode:
1=Enabled
2=Disabled
78
0x4E
Stayprime Idle Minutes
Read/write Stay Prime Idle Minutes as an integer (30-
1440 in 30-minute increments).
79
0x4F
Stayprime Run Seconds
Read/write Stay Prime Run seconds as an integer (1-
100 in 1-second increments).
4.4 Modbus Input Registers
Input registers are read-only registers with data packed as two bytes per register, with the
binary contents right justified within each byte. For each register the first byte contains the
high-order bits, and the second contains the low-order bits. They are read with Function
04 (0x04) Read Input Registers.

MODBUS SOFTWARE DEFINITION
The request specifies the starting address and the number of registers to read. If a function
spans multiple registers, the first register contains the high order value.
Note that PLC Addressing (Base 1) is used.
Dec Hex Function Description
1
0x0001
Model ID
Read the Model ID as an enumeration associated with the
maximum flow rate of the pump:
Output Code 2 - 5.6 GPH (21.2 l/h) 175 psi (12.0 bar)
Output Code 3 - 14.0 GPH (53.0 l/h) 75 psi (5.0 bar)
Output Code 4 - 18.0 GPH (68.1 l/h) 50 psi (3.5 bar)
2
0x0002
Language
Read the Language Setting as an enumeration:
1=English
2=French
3=Portuguese
4=Spanish
5=Chinese)
3
0x0003
Current Flow
Rate
Read the Current Flow Rate as an integer representing XX.XX
GPH/LPH. The range is 0000-9999.
4
0x0004
Flow Percentage
Read the Flow Percentage as an integer representing
XXX.XX%. The range is 00000-10000.
5
0x0005
Analog Input 1
Read Analog Input 1 as an integer representing XX.X mA. The
range is 000-200.
6
0x0006
Analog Input 2
Read Analog Input 2 an integer representing XX.X mA. The
range is 000-200.
7
0x0007
Analog Output
Read Analog Output an integer representing XX.X mA. The
range is 000-200.
8
0x0008,
0x0009
Totalizer User
Strokes
Read Totalizer User Strokes as an integer. This is stored in two
registers.
10
0x000A,
0x000B,
0x000C,
0x000D
Totalizer User
Volume
Read Totalizer User Volume as an integer representing Gal or L
depending on current unit setting. This is stored in four
registers.
14
0x000E,
0x000F
Totalizer User
Hours
Read Totalizer User Hours an integer representing the number
of hours the motor has been operated. This uses two registers.
16
0x0010
Totalizer User
Power Cycles
Read Totalizer User Power Cycles as an integer.
17
0x0011,
0x0012
Totalizer Unit
Strokes
Read Totalizer Unit Strokes as an integer. This is stored in two
registers.
19
0x0013,
0x0014,
0x0015,
0x0016
Totalizer Unit
Volume
Read Totalizer Unit Volume as an integer representing Gal or L
depending on current unit setting. This is stored in four
registers.
23
0x0017
Totalizer Unit
Hours
Read Totalizer Unit Hours an integer representing the number
of hours the motor has been operated. This uses two registers.
25
0x0019
Totalizer Unit
Power Cycles
Read Totalizer Unit Power Cycles as an integer.
26
0x001A
Calibrated
Volume
Read the Calibrated Volume as an integer representing XX.XX
mL. This volume of a single stroke based on the calibration.

MODBUS SOFTWARE DEFINITION
27
0x001B,
0x001C
Batch Mode
Remaining
Volume
Read Batch Mode Remaining Volume as an integer
representing Gal or L depending on current unit setting. This
uses two registers.
29
0x001D,
0x001E
Batch Mode
Remaining
Dosing Time
Read Batch Mode Remaining Dosing Time in seconds. This
uses two registers.
31
0x001F,
0x0020
Cycle Time Mode
Startup Delay
Left
Read Cycle Time Mode Startup Delay Remaining in seconds.
This uses two registers.
33
0x0021,
0x0022
Cycle Time Mode
Run Time Left
Read Cycle Time Mode Run Time Remaining in seconds. This
uses two registers.
35
0x0023
Cycle Time Mode
Cycle Time Left
Read Cycle Time Mode Cycle Time Remaining in seconds. This
uses two registers.
37
0x0025
Weekly Event
Remaining Run
Time
Read Weekly Event Remaining Run Time in seconds. This uses
two registers.
39
0x0027
LCD Contrast
Read the LCD Contrast as an integer representing 0-100%
40
0x0028
Main Firmware
Version
Read the Main Firmware Version as an integer that must be
converted to hex to be read as 0000-FFFF representing
X.X.X.X.
41
0x0029
I/O Firmware
Version
Read the I/O Firmware Version as an integer that must be
converted to hex to be read as 0000-FFFF representing
X.X.X.X.
42
0x002A
Display Firmware
Version
Read the Display Firmware Version as an integer that must be
converted to hex to be read as 0000-FFFF representing
X.X.X.X.
43
0x002B
Display EEPROM
Firmware
Version
Read the Display EEPROM Firmware Version as an integer that
must be converted to hex to be read as 0000-
FFFF representing X.X.X.X.
44
0x2C
Stayprime Idle
Remaining_W1
Read the Stayprime Idle remaining high bits.
45
0x2D
Stayprime Idle
Remaining_W0
Read the Stayprime Idle remaining low bits.
46
0x2E
Stayprime Run
Time Remaining
Read the Stayprime Run time remaining
47
0x2F
RTC_DOW
Read the Day of the Week in the Real Time Clock as an integer
(1-7) that represents the day of the week.
4.5 Modbus Discrete Inputs
Discrete Inputs are read-only, single bit data fields that are used to provide access to
status information. Status is indicated as: 1 is the value ON, and 0 is the value OFF. The
Discrete Inputs are read with Function 02(0x02) Read Discrete Inputs.
Note that PLC Addressing (Base 1) is used.
Dec Hex Function Description
1
0x0001
Running Status
Read the Running Status Discrete Input:
(0 = stopped, 1 = running).

MODBUS SOFTWARE DEFINITION
2
0x0002
Int/Ext Operating Mode
Read the Internal/External Operating Mode Discrete
Input: (0 = internal, 1 = external).
3
0x0003
Tank Low
Read the Tank Low Discrete Input: (0 = Not low, 1 =
Tank Low).
4
0x0004
Tank Empty
Read the Tank Empty Discrete Input: (0 = Not empty, 1
= Empty).
5
0x0005
Manual Mode
Read the Manual Mode Discrete Input: (0 = Not in
manual mode, 1 = In manual mode).
6
0x0006
Analog Mode
Read the Analog Mode Discrete Input: (0 = Not in
analog mode, 1 = In analog mode).
7
0x0007
Pulse Mode
Read the Pulse Mode Discrete Input: (0 = Not in pulse
mode, 1 = In pulse mode).
8
0x0008
Batch Mode
Read the Batch Mode Discrete Input: (0 = Not in batch
mode, 1 = In batch mode).
9
0x0009
Cycle Timer Mode
Read the Cycle Timer Mode Discrete Input: (0 = Not in
cycle timer mode, 1 = In cycle timer mode).
10
0x000A
Timed Event Mode
Read the Timed Event Mode Discrete Input: (0 = Not in
timed event mode, 1 = In timed event mode).
11
0x000B
100% Mode
Read the 100% Mode Discrete Input: (0 = Not in 100%
mode, 1 = In 100% mode).
12
0x000C
Prime Mode
Read the Prime Mode Discrete Input: (0 = Not in prime
mode, 1 = In prime mode).
13
0x000D
Slow Mode
Read the Slow Mode Discrete Input: (0 = Not in slow
mode, 1 = In slow mode).
14
0x000E
Units
Read the Units Discrete Input: (0 = English, 1 = Metric).
15
0x000F
Pump Calibrated
Read the Pump Calibrated Discrete Input: (0 = Not
calibrated, 1 = Calibrated).
16
0x0010
Keypad Locked
Read the Keypad Locked Discrete Input: (0 = unlocked,
1 = locked).
17
0x0011
Digital Output 1
Read the Digital Output 1 Discrete Input: (0 =
Unswitched, 1 = Switched).
18
0x0012
Digital Output 2
Read the Digital Output 2 Discrete Input: (0 =
Unswitched, 1 = Switched).
19
0x0013
Digital Input 1
Read the Digital Input 1 Discrete Input: (0 = Unswitched,
1 = Switched).
20
0x0014
Digital Input 2
Read the Digital Input 2 Discrete Input: (0 = Unswitched,
1 = Switched).
21
0x0015
Digital Input 3
Read the Digital Input 3 Discrete Input: (0 = Unswitched,
1 = Switched).
22
0x0016
Digital Input 4
Read the Digital Input 4 Discrete Input: (0 = Unswitched,
1 = Switched).
23
0x0017
Home Screen
Read the Home Screen Discrete Input: (0=homescreen
not displayed, 1=homescreen displayed).
24
0x0018
Batch Mode Dosing
Read the Batch Mode Dosing Discrete Input: (0=No,
1=Yes).
25
0x0019
Cycle Timer Startup
Delay
Read the Cycle Timer Startup Delay Discrete Input:
(0=No, 1=Yes).
26
0x001A
Cycle Timer Pump Active
Read the Cycle Timer Pump Active Discrete Input:
(0=No, 1=Yes).
27
0x001B
Weekly Timed Event
Active
Read the Weekly Timed Event Active Discrete Input:
(0=No, 1=Yes).

CABLE WIRING
4.6 Modbus Alarm Discrete Inputs
The Excel®XR Pump Alarms are stored as a separate range of Discrete Inputs. Discrete
Inputs are read-only, single bit data fields that are used to provide access to status
information. Status is indicated as: 1 is the value ON, and 0 is the value OFF. The Discrete
Inputs are read with Function 02(0x02) Read Discrete Inputs.
Note that PLC Addressing (Base 1) is used.
Dec Hex Function Description
101
0x0065
Global Alarm
Read the Global Alarm Status:(0 = OFF, 1=ON). The
Global Alarm is enabled if there is any alarm condition.
102
0x0066
User Alarm
Read the User Alarm Status: (0 = OFF, 1=ON)
103
0x0067
Tank Empty Alarm
Read the Tank Empty Alarm Status: (0 = OFF, 1=ON).
104
0x0068
Tank Low Alarm
Read the Tank Low Alarm Status: (0 = OFF, 1=ON).
105
0x0069
Internal System Error
Alarm
Read the Internal System Error Alarm Status: (0 = OFF,
1=ON).
106
0x006A
Motor Stall Alarm
Read the Motor Stall Alarm Status: (0 = OFF, 1=ON).
107
0x006B
Analog Loss of Signal
Alarm
Read the Analog Loss of Signal Alarm Status: (0 = OFF,
1=ON).
108
0x006C
Analog Overrange Alarm
Read the Analog Overrange Alarm Status: (0 = OFF,
1=ON).
109
0x006D
Motor Homing Error
Alarm
Read the Motor Homing Error Alarm Status: (0 = OFF,
1=ON).
110
0x006E
Pulse Signal not Present
Alarm
Read the Pulse Signal not Present Alarm Status: (0 =
OFF, 1=ON).
111
0x006F
Pulse Signal Overrange
Alarm
Read the Pulse Signal Overrange Alarm Status: (0 =
OFF, 1=ON).
5.0 Cable Wiring
The Excel®XR pump provides a 5-pin Reverse Key Female M12 (B-Code) connector with
the following pin-out:
Connector Pin # Function
C
1
VP (5 V)
2
D0 (Negative Data) Signal)
3
DGND
4
D1 (Positive Data) Signal)
5
N/A
Thread: Shield (earth ground)
4
3
1
2
5

CABLE WIRING
Figure 4: Connector C Pin Diagram
The M12 circular connector conforms to IEC 60947-5-2 or IEC 61076-2-101. The shield of the
cable should be connected to protective ground on both sides and with good conductivity. The
following parts have been verified:
Description Manufacturer Part Number
2 meter cable with M12 Mating connector and Flying Leads Turck RSSW 590-2M