2iB SC10 Installation And User Manual - User Manual

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SC10 Single Pump Controller

Installation and User Manual

Safety

SAFETY WARNINGS:



Always isolate the power supply before performing any installation work.



Always isolate the power supply before attempting to trace a fault as the pump connected may start without

warning.



The installation shall be performed by an authorised electrician according to local safety regulations.



The SC10 must only be used on pumping equipment that is capable of running dry for short durations.



The SC10 is not to be used in Hazardous Areas or Locations (such as areas with Explosive or Flammable Gas or Dust
Environments).



There are no operator serviceable parts inside. Modification may negatively impact safety and may void warranty.

Unpacking, Inspection and Recycling

The delivery comprises of:



1 x SC10 Pump Control Unit



1 x SC10 Installation and Operations Manual. (This document.)



1 x SC10 Quick Reference Guide

If any of these items are missing or damaged at the time of delivery, please contact 2iB Pty Ltd. Please retain the product packaging
and return the product for inspection if damaged.

A 4-20mA CT is required for snore control operation. This can be purchased separately from 2IB.

Installation

3.1

Important Installation Requirements



To avoid damage: If the Power Supply is to be earthed then terminal no. 2 (-) may be earthed, but not terminal no. 1
(+).



Check that the rated voltage of SC10 corresponds with the supply line voltage. The SC10 is mounted on a standard 35
mm DIN rail. Ensure that you use the SC10 within its Technical Specifications – see section 8 Specifications.



To ensure accuracy and reliability screened twisted-pair cable is to be used for connection of the Current Transducer for
measuring the pump motor current.

3.2

Remote Snoring Setup Controls for Operator Safety

The Stop Current Setpoint can be set and adjusted using pushbuttons on the front of the pump starter / control panel. This enables
the pump setup, commissioning and setpoint adjustment to be performed without the electrical hazards entailed in opening the
pump starter / control panel doors.

As shown in section 9 SC10 Connections the pushbuttons can be connected to digital inputs on the SC10. It is recommended to
connect / provide pushbuttons for:



Up (Setpoint Adjustment)



Down (Setpoint Adjustment)



Set (Set the Stop Current Setpoint)



Start (Pump Start – needed for commissioning)

If you wish to prevent unauthorised personnel making adjustments then you can install these pushbuttons behind a lockable door
or cover.

3.3

Front-Mounting of SC10 to View Operating Current and Access Pushbuttons

In addition to the standard mounting of the SC10 on a DIN Rail inside the cabinet, two alternative mounting options can be
considered:



A window can be built into the starter cabinet door and the SC10 can be mounted forward of the back-plate / gear-tray
(or on the rear of the door) so that the current display is visible from outside of the panel.



The SC10 can be mounted so that the front of the SC10 protrudes through the door (similar to circuit breakers) thus
providing access to the current display as well as the buttons. Note that the SC10 is neither dust, nor water resistant so
an outer door or cover will be required. (WARNING: Please take into account local and site electrical safety
requirements.)

SC10 Operation

Snore or Snooze Control.  The SC10 Snore Controller monitors the electrical motor current via a 4-20mA output current
transformer (CT).  By monitoring the centrifugal pump current the SC10 detects the low current when no or little fluid is being
discharged (called snoring) and stops the pump from running dry for extended periods.  When low current is detected the unit
stops the pump.  Note that Snore Control can work on both three-phase and single-phase motors.

The SC10 then pauses the pump operation for a time. The length of pause time before the next pump cycle is automatically
calculated. This pause time increases and decreases automatically to adjust to inflow based upon the time required for the last
pump run. The target duration of the pump run time is set via dip switches. The adaptive control algorithm will automatically
adjust the pump pause time to try to achieve the target run time.

Float Switch Support. The SC10 can operate the pump with no level sensors. Or, it can utilise external level (float) switches
either as the primary means of control or in combination with the snore control. Options Include:



Timer start, Snore stop



High level start, Snore stop



High Level start, Low Level stop



Push button start, Snore stop



Push button start, Low Level stop



Push button stop, Timer start



Push button stop, High level start

The start button will start the pump anytime that it is pushed and it will continue to run until the pump is again snoring or the
low level switch activates.

The SC10 also has a pump cleaning feature. The pump will stop periodically to allow a backflush as water runs back down the
discharge hose. This helps clear the impellor and the suction strainer of debris reducing the chance of blockage and cavitation,
as well as increasing the flow rate and efficiency.

Start-up of the SC10. The SC10 will normally start the pump 30 Seconds after start-up. The pump will run until a stop condition
is reach – snoring is detected or the stop/low float is activated. This pump start will not occur if the stop/low float is active.

4.1

Snoring Detection Explained

What is Snoring?

When the pump starts sucking air (called snoring) the pump flowrate and the pump current drop. This drop in current can be
detected by the SC10. This effect is shown in the graph below.

The Stop Current Setpoint

The Stop Current Setpoint is the current below which the
SC10 considers the pump to be snoring.

As shown in this graph, the pump runs at a Normal Running
Current until it begins snoring – indicated in the graph with
Pump starts snoring here. At this point the current drops to
a lower level.

If this lower Snoring Current is less than the Stop Current
Setpoint then the SC10 stops the pump.

What is the Current Window?

The  normal  way  of  setting  the  Stop  Current  Setpoint  is  to
press the Set button when the pump is snoring (see section
5.6).    When  the  Set  button  is  pressed,  the  Stop  Current
Setpoint  is  set  to  the  measured  pump  current  plus  the
Current Window.  (Stop Current Setpoint = Measured Current
+ Current Window.) This is done so that the SC10 can reliably detect the snoring condition.

An Example

The operator is commissioning the pump which has a 0-100 Amp CT. They press Start. The pump runs normal at a current of 70%
(70 Amps), then the pump snores and the measured current drops to 50% (50 Amps). The operator hears the pump snoring and
presses the Set button combination.

If the Current Window DIP switches are set for a 10% current window then the Stop Current Setpoint is loaded with 60%.

Measured current when pump is snoring = 50% (50 Amps)

Current Window = 10% (10 Amps)

So, the Stop Current Setpoint is loaded with 50% + 10% = 60% (60 Amps)

The Current Window should be set to enable a Stop Current Setpoint to be set in between the Normal Running Current and the
Snoring Current.

If on the next pump run the measured snoring current is 55% (55Amps) then this will still be detected as snoring and the pump
will be stopped.

Single Phase Motors

Snore detection works identically on single-phase motors as it does on three-phase motors.  Note however that on smaller motors
(single- or three-phase) the variation of current with load will be smaller which may make the setup more critical.  In particular,
the Current Window setting may need to be smaller.  Take a note of the current reading displayed on the SC10 and compare that
for normal operation and snoring and use this as a guide.

SC10 Set Up

The initial set up of the relay is done by setting these parameters:

CT Current Range

Pump Cycle Time

Alarm Relay Activation Conditions

Float Switch Contact Status

Current Window %

Stop Current Setpoint

5.1

Current Range & Current Transformer Selection

The SC10 uses a 4-20mA Current Transformer (CT) to measure the motor current.  The selected current transformer rated primary
current  should  be  close  to  the  full  load  current  of  the
connected  load  for  optimal  accuracy  but  should  not
exceed it. Multiple turns of the motor phase wire could
be made through the CT to better match the motor rated
current to the CT.

In the circumstance that this isn’t achievable there are
four current range dip switch selections available 100%,
50%, 25% and 12.5% that increases the current percentage display providing full scale set point ranging setting

i.e. if you have a 0-100 CT with a 50 Amp full load current the output is
only 4mA to 12mA and the percentage of current displayed will only be
50% by switching dip switch 2 (50%) on it increases the display range
resolution to 100% providing full range selection.

Tip: For best accuracy, use (1) Multiple turns through the CT or (2)
Selectable range on the CT in preference to (3) Setting a lower range on the
SC10.

See also section 11 Examples of CT Range and Setup for Starter Panels.

Single Phase Motors. See also the note about single-phase motors in section 4.1 Snoring Detection Explained.

5.2

Pump Run Time Target

When the SC10 is first commissioned a pump run time target should be set,
the  run  time  selection  should  reflect  the  time  the  sump  or  container  is
currently taking to empty by the installed pump.   The stop or pause time
duration is controlled by the SC10 controller and will vary based on run and
stop  history  and  programmed  adaptive  control  algorithm  to  attempt  to
achieve  the  target  run  time.    Setting  a  pump  cycle  time  target  via  DIP
switches.

Tip: If the level in the sump rises too high then select a shorter Cycle Time.
Conversely if you want the level to rise higher before the pump starts then
select a longer Cycle Time.

Current Range

Setting

Off

100% (default)

Off

50%

Off

25%

12.5%

Pump Run Time Target

Setting

Off

3 min

Off

5 min (default)

Off

8 min

Off

15 min

Off

30 min

Off

1 h

Off

2 h

4 h

Tip: Generally it is better to have the pump start at a lower than a higher level, so select a Target Run Time which is lower or equal
to what you expect to need.

5.3

Start and Stop Modes

The standard operating mode of the SC10 starts the pump based on the
timer or the high float switch and stops when either the pump snores or
the low float switch activates.

Stop on Low Float Only / Disable Snore Stop: Using DIP Switch 15 you can
disable the pump stop based on the pump snoring so that the pump will
only stop when the low float switch is reached. This can be useful if you
need the pump to stop at a specific level (that of the low float switch).

Start on High Float Only / Disable the Timer Start:  Using DIP Switch 16 you can disable pump start based on the timer.  This
means that the pump will only start based on the float switch.  This may be useful if you want the pump to start at a specific level
(that of the high float switch).  This can be useful in hoppers or tanks.

Float Switch Only Operation: By switching both DIP Switches 15 and 16 ON the pump will start on the high float switch and stop
on the low float switch. (Timer start and Snore Stop will be disabled.) This mode can be useful in hoppers or tanks. This same
operating mode can be used to start and stop the pump only on Start and Stop Pushbuttons.

5.4

Alarm Relay Activation

The SC10 has a single alarm output can be set to any combination of four
functions and displayed externally with a fault lamp if desired. Ref DIP
Switches (6, 7, 8, 9) on front of SC10.



CT Fault (diagnostic monitoring of CT)



Sump Low



Sump High



Failed to Run (pump called to run no current detected)

5.5

Stop / Low Level Switch Invert

If a low level switch is used then the switch contact status needs to be set
to normally open or closed. Ref DIP Switch (10) on front of SC10.

Tip: If both the High and Low Level Switches are the same and their
contacts close when the float switch is covered then you will need to set
SW 10 to ON.

5.6

Setting the Stop Current Setpoint

Pressing the Set button combination (





simultaneously) sets the Stop Current to Measured Current

+ Window Current

To Set the Stop Current Setpoint perform the following steps:

Ensure that there is enough fluid in the sump or container so the pump doesn’t immediately
draw in air

Press the Start button on the relay or on the front of the panel to start pump.

When the pump running and is snoring (drawing air), press the



Up and



Down buttons

simultaneously. The stop current setpoint is now set to the displayed percentage.

Allow water to fill above pump suction and start the pump again to ensure it stops when
snoring. If it doesn’t stop adjust setting or expand window current.

Note: This settings is non-volatile. It is stored through power-cycles of the SC10.

Single Phase Motors. See also the note about single-phase motors in section 4.1 Snoring Detection Explained.

Modes

Setting

On: Disable Snore Stop

On: Disable Timer Start

Default = Off, Off.

Alarm Relay Activates for …

Setting

AIN (CT) Fault

Stop / Low Float

Start / High Float

Fail to Run (Low Current)

On = Activates for this condition.
Default= Off, Off, Off, Off

Stop / Low Float Invert

Setting

Off

Closed = Low (default)

Open = Low

5.7

Current Window Setting

See section 4.1 Snoring Detection Explained for an explanation of the
Current Window.

The current window setting has 4 dip switches +2%, +4%, +8% and +16%,
by selecting a current window it adds the percentage to the stop current
setpoint.

As an example if the stop current threshold is set to 20% of CT range and
the window current is set to +4% via dip switch 13 the stop current
threshold = 20% + 4% = 24 % of CT range.

Single Phase Motors. See also the note about single-phase motors in
section 4.1 Snoring Detection Explained.

5.8

Current Setpoint Adjustment

An additional adjustment method is by using the up (



) and down (



) buttons independently. By

pushing the up or down button it will adjust the stop current threshold to the user’s desired value as
a percentage of CT current.

Note: This settings is non-volatile. It is stored through power-cycles of the SC10.

Display and LED Indication

6.1

Current % Display

= PAUSING. Pump is Pausing.

= CLEANING. Pumps is Stopped for a Cleaning flush.

Number = the measured current as a percentage of the measured range. (Taking into account the Current Transformer range
configured using the DIP switches as per section 5.1.)

6.2

LED Indicators

See section 12 Reference for details of the LED indicators.

Current Window (%)

Setting

On: +16%

On: +8%

On: +4%

On: +2% (default)

Troubleshooting

Question / Problem

Answer



Pump Starts too early / often.



Level does not rise high enough before the
pump starts.



Increase the Pump Cycle Time. The
controller will wait longer before starting
the pump. See section 5.2.



Pump Starts too late.



Level does rises too high before the pump
starts.



Decrease the Pump Cycle Time. The
controller will not wait as long before
starting the pump. See section 5.2.



If you need the pump to start at a specific
level then consider using a High Level
(Float) Switch.



Current display percentage is always zero.



Lo Current LED is lit.



Ensure installed 4-20mA CT correctly
installed and connected to terminals 7 and
9.



Ensure installed 4-20mA CT is correct range
for installed load.



The pump stops although it is not snoring.



Ensure the inhibit/low float input is not
activated



Stop current setpoint requires adjustment
as it is set too high. Adjust the stop current
setpoint to a lower value.



If using the Set functionality during
commissioning then adjust the Current
Window to a lower value.



The pump doesn’t stop when snoring.



Ensure the start/high float input is not
activated



The stop current setpoint is set too low.
Adjust the stop current setpoint to a higher
value.



If using the Set functionality during
commissioning then adjust the Current
Window to a higher value.



Power on but no lights are illuminated on unit.



Check power supply to unit across terminal
1 & 2.



Unit is faulty or damaged and requires
change out.

Specifications

Supply Voltage

24VAC, 12-24VDC

Frequency

45–65 Hz

Power Consumption

<10VA

Motor Current Sensor

4-20mA input CT. Range to suit attached load. SC10 provides
24VDC drive for CT.

Operating Temp

0-55 degrees Celsius

Run Relay Contact Rating

5 A, 48 VAC Resistive, 1.5 A 48 VAC Pilot duty / AC12

Alarm Contact Rating

5 A, 48 VAC Resistive, 1.5 A 48 VAC Pilot duty / AC12

Dimensions

W 106.5mm x H 90.50 mm x D 59mm

Material

PC/ABS

Mounting

35mm Din rail mounted

Weight

300 g

Certification

EN 61000-6-3:2007+A1+AC

FCC Part 15B

90.5mm

SC10 Connections

See section 12 Reference for terminal identification.

Figure 1

– SC10 Front Panel

Figure 2 - Connections

10.

Pump starter wiring example

Pump

EOL

F1-6A

F2-6A

415VAC/24VAC

250VA

Power On

Overload Fault

O/L 1

O/L Panel Reset

Main Contactor

Alarm

CT 4-20mA +

CT 4-20mA -

Stop Button

Low Level

Overload

High Level

Panel Start

Remote Start

Start Inputs

Stop Inputs

Overload Reset

Remote Set Point Up

Remote Set Point Down

Remote Threshold Set

DIN Common

O/L 2

Emergency Stop

Pump Run

DIN 1

DIN 2

DIN 3

DIN 4

DIN 5

+ 4-20mA

- 4-20mA

24 VAC-A

24 VAC-N

Ref -Line 8

Ref - Line 7

Ref – Line 23

Ref – Line

24 VAC - A

24 VAC - N

24 VAC

- N

24 VAC

- A

SC-10 Supply

SC-10

11.

Examples of CT Range and Setup for Starter Panels

11.1

22kW Starter for 8kW & 20kW Flygt Pumps (1kV)

Pump Model

Rated
Current

Flygt 8kW 2125

6.2 A

Flygt 20kW 2151

14A

CT Set to 20A

CT is Dwyer CCT40 with selectable
ranges of 10A, 20A, 50A. Set to 20A.

Set Current Range DIP Switches to
100%

Current Range

Setting

Off

100% (default)

11.2

37kW Starter for 20kW & 37kW Flygt Pumps (1kV)

Pump Model

Rated
Current

Flygt 20kW 2151

14A

Flygt 37kW 2201

26 A

To use with an 8kW & 20kW Pumps it
would be best to set the CT to Mid
(20A) Range.

CT Set to 50A

CT is Dwyer CCT40 with selectable
ranges of 10A, 20A, 50A. Set to 50A.

Set Current Range DIP Switches to
100%

Current Range

Setting

Off

100% (default)

11.3

Other Options

You can scale the current measurements in a few different ways

ated C

) A

T R

ati

SC10 Current Range

t Ra

t S

ll D

ispl

DIP Switches

SW 1

SW 2

An Example: Optimal setup for an 8kW Pump. (Based on 11.1 above.)

Option 1: As above.

100%

off

30%

30% of the range really is a bit low. It would be best to adjust the range to increase the measurement.

Option 2: Change the
Range Setting on the
SC10

50%

off

60%

This gives a range of 10A and at FLC this shows 60%. (If you mount the SC10 so that its front panel is accessible
then this change could be done safely without opening the starter panel.)

Option 3: Change the
Range setting on the CT
to 10A.

100%

off

60%

Results are the same as option 2. (This requires disconnection of power and adjustment by an electrician inside
the starter panel.)

Option 4: Put another
turn through the CT

100%

off

60%

Results are the same as options 2 & 3, but this requires an electrician to change the wiring.

12.

Reference

DIP Switches

Current Range

Setting

Off

100% (default)

Off

50%

Off

25%

12.5%

Pump Run Time Target

Setting

Off

3 min

Off

5 min (default)

Off

8 min

Off

15 min

Off

30 min

Off

1 h

Off

2 h

4 h

Alarm Relay Activates for …

Setting

AIN (CT) Fault

Stop / Low Float

Start / High Float

Fail to Run (Low Current)

On = Activates for this condition. Default= Off,Off,Off,Off

Stop / Low Float Invert

Setting

Off

Closed = Low (default)

Open = Low

Current Window (%)

Setting

On: +16%

On: +8%

On: +4%

On: +2%

Default = Off,Off,Off,On.

Modes Default = Off,Off

Setting

On: Disable Snore Stop

On: Disable Timer Start

Current % Display

= PAUSING. Pump is Pausing.

= CLEANING. Pumps is Stopped for a Cleaning flush.

Number = The measured current as a percentage of the
measured range (taking into account the Current Transformer
range configured using the DIP switches as per section 5.1).

Terminals

Power
24VAC
12-24VDC

DC+ / AC

DC- / AC (Earth)

Earth

Pump Run Relay

Alarm Relay

Pump Current
CT (4-20mA)

Digital Inputs

DIN Common

DIN 1: Start / High Float

DIN 2: Stop / Low Float

DIN 3: Up Pushbutton

DIN 4: Down Pushbutton

DIN 5: Set Pushbutton

DIN 8: Remote Config. Mode

No Connection

19-27

Do not use (AIN+ Loop Power)

Modbus RTU
(RS485)

Earth

No Connection

32-36

LED Indicators

Power

Power is Present

Flash

Unit starting up.

Run / Pause

Pump is Running

Pulse
Flash

Pump is Pausing and will start when
pause timer completes or high float
or start signal activates.

Fast
Flash

Pump Snoring. Pump will stop after
10 seconds of snoring

Slow
Flash

Pump Starting or running a cleaning
cycle.

Stop Input /
Low Float

Stop Input / Lo Float Active

Start Input /
High Float

Start Input / Hi Float Active

Alarm

Flash

Alarm Present & Alarm Relay Active

Fail to Run

Pump previously failed to run.
(Current Not detected when the
pump run relay is active.)

Fast
Flash

Pump is failing to run.

Hi Current

Fast
Flash

CT input too high

Pulse
Flash

CT input is above 100% of range.
Consider adjusting CT measuring
range or using a larger CT.

Lo Current

Fast
Flash

CT input too low.

Pulse Flash = Active for 0.25 secs every second.
Slow Flash = 1Hz Flash. Fast Flash = 2 Hz Flash.

13.

Modbus and HMI

13.1

Remote / Local Configuration Mode (for Use with HMI)

Normally, when used standalone, the SC10 is configured using the DIP switches.

When used with a HMI, the SC10 has a remote configuration mode to enable configuration from the HMI (via the Modbus
interface).

To enable Remote Configuration Mode, activate Digital Input DIN8 by connecting terminal 18 (DIN 8) to terminal 10 (DIN
Common).

Configuration
Mode

Configured using Purpose

Notes

Local

DIP switches on
SC10

For use of SC10 standalone.

Modbus RTU configuration is completely
ignored.

Remote

HMI via Modbus
RTU Interface

For use with HMI on Modbus port.

Designed to be used with the SC10 HMI.

DIP Switches are completely ignored.

13.2

Modbus RTU Interface – RS485

The SC10 has an RS485 port which supports the Modbus RTU protocol for use of a HMI, SCADA or
PLC communications.

Important Note: This has a fixed Modbus slave address of 10.

13.3

Modbus Points List

Registers may be read as Input or Holding Registers.

Coils and Discrete Inputs may be read as registers.

Coils may be read as Discrete Inputs.

No Modbus errors or exceptions will be generated. Reads from invalid addresses will return 0. Writes to invalid addresses will be
ignored.

Addressing: Modbus addresses are indexed from 1 in the following table. The address in the Modbus packet is 1 less than that
address. (There is inconsistency between Modbus implementations about whether the addresses start from 0 or 1, so if you are
not reading the value that you expect then consider reading the previous or next address.)

Coil /
Discrete
Address

Read Only
(RO) or
Read/Write
(RW)

Description

Action (Command) Coils.
An action coil is a request to the device to perform an action. When written to a 1 (set)
by the master, these will be cleared by the slave a few seconds later.

LSB

Call the pump to start. (This is equivalent to pressing the START button.)

Call to stop the pump.

Call to set the current to the measured current. See section 5.6.

Save Settings. Remote Configuration Mode Only.
Settings will apply, but will not be saved until the coil is set.

Reset settings to Defaults. Remote Configuration Mode Only.

Settings Coils (Remote Configuration Mode Only)

LSB

Alarm relay activates for AIN (CT) fault.

Alarm relay activates for Stop / Low Float active.

Alarm relay activates for Start / High Float active.

Alarm relay activates for Pump Fails to Run (Low current when Pump Run Relay is
active).

Invert the Low Float Input.

Serial Parameters

Baud Rate

9600 bps

Data Bits

Parity

None

Stop bits

Coil /
Discrete
Address

Read Only
(RO) or
Read/Write
(RW)

Description

Disable Snore Stop.

Disable (Pause) Timer Start.

Unused

Discrete Status Values

LSB

Low Float / Stop Input is active.

High Float / Start Input is active.

Pump Run Relay is On.

Alarm Relay is On. (An alarm is active.)

Remote Configuration Mode is active.

Pump is Snoring.

AIN 1 / CT Input is too high.

AIN 1 / CT Input is too low.

Pump has failed to run.

Unused

Active Alarms
Alarm for Analog Input (CT Input) low is active.

Alarm for Low Float Active.

Alarm for High Float Active.

MSB

Alarm for Pump Fails to Run. Pump Run Relay Active, but no current was detected.

Unused

Pump Control State:
0: Initial State
1: Pump Pausing (waiting for Pause Timer to expire)
2: Pump Running
3: Low Level active (Pump Stopped)
4: High Level active (Pump Running)
5: Pump is pausing to flush pump.
6: Pump is starting (Pump not yet running.)

Pump Current. Percentage with 1 decimal place. e.g. 125 = 12.5%

Pump Stop Current (Snore Setpoint). . Percentage with 1 decimal place. E.g. 125 =
12.5%. Note: Read Only. See Register 23 for the actual setpoint.

The Duration of this pump run:
Hours

Minutes

Seconds

The Time remaining of the current Pause Timer:
Hours

Minutes

Seconds

Settings / Configuration (Remote Configuration Mode Only.)
IMPORTANT: To save changes to these settings, set coil 4 (see above).
The Pump Run Time Target Setting:

… Hours

… Minutes

… Seconds

Coil /
Discrete
Address

Read Only
(RO) or
Read/Write
(RW)

Description

Window Current. The offset added to the measured current to obtain the stop current
setpoint when the Set button is pressed. Percentage with 0 decimal places 2 = 2%.

CT Current Range
0 = 100%, 1 = 50%, 2 = 25%. 3 = 12.5%

Pump Stop Current (Snore Setpoint). . Percentage with 1 decimal place. E.g. 125 =
12.5%.

Software Version Number/Date:
YY

LSB = Least Significant Bit, MSB = Most Significant Bit.

14.

Legal

14.1

Product Warranty

See Warranty information at

www.2ib.com.au

14.2

Document Subject to Change

This Document: This document and its contents are subject to change without notice.

14.3

Third Party Software Acknowledgement

FreeModbus Library: A portable Modbus implementation for Modbus ASCII/RTU.

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