Excell P-120S User manual

1
IP68 Waterproof Indicator
P-120S
User Manual
© Excell Precision Limited. All rights reserved worldwide.
The information contained herein is the property of Excell Precision Limited and is supplied
without liability for errors or omissions. No part may be reproduced or used except as
authorised by contract or other written permission. The copyright and the foregoing restriction
on reproduction and use extend to all media in which the information may be embodied.
V23. 1003

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Table of Contents
Special Notice..............................................................................................................................3
Safety...........................................................................................................................................3
Features.......................................................................................................................................4
CHAPTER 1 FRONTAND REAR PANEL SPECIFICATIONS .....................................................5
1-1 Front panel......................................................................................................................5
1-2 Keyboard description......................................................................................................5
1-3 Assembly diagram ..........................................................................................................6
1-4 A/D Conversion...............................................................................................................7
1-5 Power supply..................................................................................................................7
1-6 Indicator appearance......................................................................................................7
1-7 Circuit board description.................................................................................................8
CHAPTER 2 GENERAL FUNCTION GUIDE...............................................................................9
2-1 Function setup and operation procedures ......................................................................9
2-2 Function setting ..................................................................................12
CHAPTER 3 CALIBRATION ......................................................................................................15
3-1 Load cell connection.....................................................................................................15
3-2 Parameter setting and calibration flow chart.................................................................16
3-3 MODBUS calibration ..........................................................................18
3-4 Specification calibration ......................................................................19
3-5 General Calibration ............................................................................21
3-6 Linearity calibration ............................................................................22
3-7 Digital calibration ...........................................................................24
3-8 Calibration Error Messages..........................................................................................25
CHAPTER 4 WEIGHT COMPARISON PROCEDURES ............................................................26
4-1 Function configuration menu ........................................................................................26
4-2 Check weighing configuration.......................................................................................29
4-3 Batching signal outputs.................................................................................................32
4-4 Normal batching flow chart (SQ-01=1)..........................................................................33
4-5 Loss-in Weight flow chart ( SQ-01 = 2 )........................................................................34
4-6 Hi, OK, Lo output flow chart..........................................................................................35
4-7 Normal batching (built-in program) flow chart (SQ-01=4) .............................................36
4-8 Loss-in Weight (built in program) (SQ-01=5)................................................................37
4-9 Hold mode (SQ-01 = 6).................................................................................................38
4-9-1 Hold mode flow chart..........................................................................................39
4-9-2 Hi, OK, Lo comparison .......................................................................................40
4-10 Totalizing (ACCU.) Auto / Transmit .............................................................................40
CHAPTER 5 INTERFACE..........................................................................................................41
5-1 Serial input/output interface (OP-01) ............................................................................41
5-2 Analogue Current / Voltage Output Interface (OP-03)...................................................50
5-3 External parallel input / output interface (OP-04, OP-05)..............................................53
CHAPTER 6 MAINTENANCE....................................................................................................58
6-1 Restore all parameters to their default factory values...................................................58
6-2 Maintenance function parameters.................................................................................58
6-2-1 Restore the function parameter back to its default value....................................59
6-2-2 Clear zero compensation and TARE values.......................................................59
6-2-3 Clear batch setting .............................................................................................59
6-2-4 Display zero voltage (mV/V)...............................................................................59

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6-2-5 Clear batch setting .............................................................................................60
6-3 Test mode.....................................................................................................................61
6-3-1 7 segment display testing...................................................................................62
6-3-2 Keypad and calibration SW testing.....................................................................62
6-3-3 Display A/D internal value display ......................................................................62
6-3-4 RS-232 serial loop back testing..........................................................................62
6-3-5 EEPROM memory testing ..................................................................................62
6-3-6 Option interface card testing...............................................................................62
Appendix 1: Description of 7 segment characters......................................................................64
Appendix 2: Function Table........................................................................................................65
Appendix 3: MODBUS DataAddress Table I .............................................................................75
Appendix 4: MODBUS Data Address Table II ............................................................................76
Appendix 5: Examples for Input and Output of Modbus.............................................................77
Check Firmware Version
During power-on countdown, press
F1

key to display firmware
version 04011XXX, where XXX is maintenance number.

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!
Special Notice
The indicator is IP68 waterproof design. Only the cables with ψ4~ψ7mm calibre could
be used or will affect the waterproof design. In some certain conditions, the stainless case of
indicator would be opened to set up the load cell, to connect the power cable, or to change the
new rechargeable battery. Before open the stainless case, please make sure the indicator is dry,
if necessary the liquid should be wiped off. The assembling notice should be accurately followed
to assure the waterproof performance. We also strongly suggest that these procedures should
be operated by the technical staff of your supplier.
ASSEMBLING NOTICE:
After the desired steps are done, screw the case with 12 kgf-cm in the following orders.
Do not screw tightly before all screws are in the positions.
Screwing orders:
Safety
When the instrument is installed, connect an earth bonding conductor from FG to the earth
connection marked “ ”.
Disconnect the mains power supply before opening the instrument housing. NOTE: There
are no user serviceable parts inside.
To install the optional interface cards, it is necessary to disconnect the mains power supply
and fit a yellow/green earth bonding cable to the rear panel.
Before turning the power on ensure the supply voltage is within the acceptable range,
AC100V ~ AC240V.
The operating ambient temperature range is -10oC ~ +40oC.
(+14°F ~ +104°F)
The indicator is IP68 waterproof design. Only the cables with ψ4~ψ7mm calibre could
be used or will affect the waterproof design.
1st
2nd
3rd
4th
5th
6th

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Features
P-120S is an IP68 waterproof weighing indicator and has a wide range of applications from
batching to simple weighing.
Features:
Sturdy and durable stainless steel waterproof and dustproof IP68 design
Stainless steel IP 68 Waterproof design
The stainless steel body can be easily mounted on the control panel.
High performance A/D interface
016 VD sensitivity
Maximum sampling speed of 120 times/second
Measurement range -0.1~ 4.0 mV/V
Flexible Calibration Method
Regular 2-points weight calibration
5-points linear calibration
Key in the signal voltage value (mV/V) directly via the keyboard, no need to apply any
weight to the bottomwork to calibrate the weigher.
Display load cell output voltage (mV/V) for future maintenance
Adjustable digital filter
Can effectively suppress vibrations generated by the on-site environment
Six weight comparison modes cover most application situations
Stand alone batching mode or connect to PLC for external system control
Built in batching / dosing functions
Manual / automatic discharge operation
Set cycle times in a batch
Totalise weight and number of cycles
RS232C bi-directional and current loop one way serial interface
Built in MODBUS
The body is made of stainless steel and can be easily mounted on the control panel.
Interface options:
OP-01 RS422/485/232 serial interface
OP-03 16 Bit Analogue current/voltage output interface (4 ~ 20 mA/ 0 ~ 10V)
OP-04 Control I/O (4In / 4Out) + Setpoint In (BCD code)
OP-05 Control I/O (8In / 8Out)

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F2FF1
Tare
Zero G/N
P-120S
CHAPTER 1 FRONT AND REAR PANEL
SPECIFICATIONS
1-1 Front panel
Display
6 digits, bright red, 7 segment LED display, character height 16mm (0.63”).
Display can be switched between Gross Weight / Net Weight / Totalised Weight /
Number of transactions in the total.
Indication icons “◄”
ZERO
◄
:
Zero Indication
MD
◄
:
Unstable weight Indication
GROSS
◄
:
Gross weight Indication
NET
◄
:
Net weight Indication
The indicator is supplied with suitable labels to customise the icon displays. Refer to
FNC. 07 ~ FNC.10 to set up S1 ~ S4 indication depending the need.
Weighing Units
Weighing Units kg / g / t / lb.
1-2 Keyboard description
:
When entering data or reference setting, it means “ESC”.
In the normal operation, it puts the indicator in standby mode or escape. Entering
standby mode: All of the display (except ZERO “” symbol) and serial data output
are disabled.
Escape from standby mode: Re-power on mains for normal operation.
:
In the normal mode, it performs as Zero operation.
:
When parameter setting, it increments the flashing digit or steps up the select item.
In the normal mode, it performs a Gross/Net switch operation.
:
In the normal mode, it performs as Tare operation.
:
When parameter setting, it move flashing to right.
In the normal mode, it accesses the FNC-06 setting.
Tare
F2

Zero
G/N


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:
When parameter setting, it decrements the flashing digit or steps down the select
item.
In the normal mode, it accesses the FNC-05 setting.
:
When parameter setting, it move flashing to left.
In the normal mode, it accesses the FNC-04 setting.
:
Confirm / enter key
Function FNC-03 can be used to selectively disable individual keys.
Zero operation, will be limited by functions CSP-05 and CSP-10.
Zero operation, will be limited by functions CSP-10 and CSP-11.
1-3 Assembly diagram
正面
背面
OP-01
OP-03
OP-05
OP-04
Back
Front
F1

F


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1-4 A/D Conversion
* Input Sensitivity
* Internal Resolution
* Max. Sampling Speed
* Application Range
* Load Cell Excitation Voltage
: Minimum of 0.16 uV/D
: 1 / 1,000,000
: 120 times/sec.
: - 0.1 mV/V ~ 4.0 mV/V
: 5 VDC ±5%, 120mA
(Up to eight (8) 350 Ω load cells can be connected)
1-5 Power supply
AC 100V ~ 240V 50/60Hz
Power consumption is about 10VA
1-6 Indicator appearance
Front view
Back view
Side view
Top view

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1-7 Circuit board description
N
L
Frame Ground
CN2
J4
J2 J5 J1 J3
CN1
SW1
CN2
CN3
CN8
3
2
1
3
2
1
SHLD
EXC-
EXC+
SEN+
SEN-
SIG+
SIG-
CN1 Connect to one of
OP-03-CN2, OP-04-CN3,
OP-05-CN3
J4 4Wire/2Wire
short pin 1, 2 → 4 Wire
short pin 2, 3 → 2 Wire
J2, J5, J1, J3 RS422/RS232
short pin 1, 2 → RS422
short pin 2, 3 → RS232
SW1 Calibration Switch
ON: Calibration Mode
OFF: Weighing Mode
SDA
SDB/TxD
RDA/RxD
RDB
GND
TRM
C-LOOP1
C-LOOP2

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CHAPTER 2 GENERAL FUNCTION GUIDE
2-1 Function setup and operation procedures
Function
Operation
Display
Description
Enter calibration mode
Turn the calibration switch to “ON”
See 3-2 for details
Enter function setting
Press not release,
then press key
after the power is turned on
See 2-2 for details
Reset all parameters
back to default
Turn the power on then turn the
calibration switch to “ON” then
press and hold the
and keys
during the self-testing sequence
.
See 6-1 for details
Reset general function
parameters back to
default
Turn the power on and
Press and keys
during self-testing sequence
See 6-2-1 for details
Clear zero point
compensation and tare
value
Turn the power on and
press and keys
during self-testing sequence, and
then press
See 6-2-2 for details
Clear setpoint parameter
setting
Turn the power on and
press and keys
during self-testing sequence, and
then press two times
See 6-2-3 for details
Value of zero point
voltage(mV/V)
Turn the power on and
Press and , then
press three times.
See 6-2-4 for details
Value of Span voltage
(mV/V)
Turn the power on and
Press and , then
Press
See 6-2-5 for details
Entering to test mode
Turn the power on and
press and keys
during self-testing sequence
.
See 6-3 for details
F

F

F

F

G/N

F

G/N

G/N

F

F

F1


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Function
Operation
Display
Description
Check weighing setpoint
parameter setting
Press the key to set
the parameter of FUNC.4 to 1 in
the normal mode
.
or
.
See 4-2 for details
Key actions in function set up mode
Increases the number of the flashing digit
Decreases the number of the flashing digit
Moves the flashing digit one space to the left
Moves the flashing digit one space to the right
Saves the configuration
Quits set up mode / Escape
F

F2

F

G/N

F1


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Function Setting
First Serial Port Interface
Second Serial Port
Interface
BCD Parallel Port output
interface
Analogue current / voltage
output interface
External parallel control
input interface
External parallel trip output
interface
Function Setting Procedures
With weight displayed press and hold the key. Then, press
See 5-1 for details
See 5-2 for details
See 5-3 for details
See 5-1 for details
See Function Setting 2-2
for details
See Chapter 4 for details
See 5-4 for details
See 5-4 for details
Set Point Procedure
F1

F1

F1

F1

F1

F1

F1

F1

G/N

G/N

G/N

G/N

G/N

G/N

G/N

G/N

F


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2-2 Function setting
Press
Input desired
Parameter code
Press
Display shows the
previous parameter
code. Input the new
code as required
press
To continue the next function setting
or press to escape
Increment flashing
digit
Decrement flashing
digit
Move flashing point
left.
Move flashing point
right
Store data in
memory
Exit / Escape
*Function Parameter code
Digital Filter I
Digital Filter II
Lock keypad function
“F” function setting
“F1” function setting
“F2”function setting
Front panel indication “S1” setting status
Front panel indication “S2” setting status
Front panel indication “S3” setting status
Front panel indication “S4” setting status
Terms of back to zero
Hold
Display the rate of refreshment
G/N

F1

F

F2


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FNC Group function setting
Item
Function
Setting value
Default
Parameter
Description
FNC-01
Digital Filter I
0
5 Hz
4
1
4.17 Hz
2
2.5 Hz
3
2.08 Hz
4
1.25 Hz
5
1.04 Hz
6
0.63 Hz
7
0.52 Hz
8
0.31 Hz
9
0.26 Hz
FNC-02
Digital Filter II
0
Disabled
2
1
Less filter
Greater
2
3
4
5
FNC-03
Key –Locked
000000

111111
0
Normal
(lock disable)
0 0 0 0 0 0
Tare G/N Zero F2 F1 F
000000
1
Close
(lock enable)
FNC-04
“F” function setting
Parameter Description
0 Setpoint parameter setting
1 Tare reset
2Manually output of serial, parallel print
3Start load
4Stop load
5Start comparison
6Unload command
7Totalise weight and counts command
8Clear totalised weight and counts
9Hold mode
10 Escape Hold mode(I/O DSP)
11 Convert to Gross / Net / totalised weight /
totalised Count
0
FNC-05
“F1” function setting
1
FNC-06
“F2” function setting
2

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Item
Function
Setting value
Default
Parameter
Description
FNC-07
Front panel indication
“S1” setting
Parameter Description
0Accu. V
1Accu. C
2SP1
3SP2
4SP3
5Hi
6OK
7Lo
8Under
9Over
10 Unloading
11 Running
12 Hold
0
FNC-08
Front panel indication
“S2” setting
0
FNC-09
Front panel indication
“S3” setting
0
FNC-10
Front panel indication
“S4” setting
0
FNC-11
Return to zero band
0
5 d
0
1
10 d
2
20 d
3
40 d
4
60 d
5
80 d
6
100 d
7
150 d
8
200 d
9
250 d
FNC-12
Hold
0
Hold
0
1
Peak hold (positive)(1)
2
Peak hold (negative)
3
Peak hold (absolute value)
4
Peak hold (positive)(2)
FNC-13
Rate for display rewrite
0
No limitation
0
1
20 times/sec
2
10 times/sec
3
5 times/sec
4
1 time/sec
The indications of FNC-07~FNC-10 are necessarily operated with OPTION CARD.

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CHAPTER 3 CALIBRATION
3-1 Load cell connection
When using a 6 wire cable to connect the load cell, the SEN+ and SEN- can
be left unconnected (see below diagram)
EXC-
SIG-
SIG+
SEN+
SEN-
EXC+
SHLD
EXC+
SEN+
EXC-
SEN-
SIG+
SIG-

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3-2 Parameter setting and calibration flow chart
Calibration
Switch ON
Select 1 Point for
Weight Calibration
(1P~5P)
Zero point
Calibration
Weight Calibration
Calibration Switch
OFF
Calibration
Completed
Zero Point Voltage
Calibration
Span Voltage
Calibration
MODBUS
Calibration
Specification
Calibration
General
Calibration
Linearity
Calibration
Digital
Calibration

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Calibration process
Before the Linearity Calibration, the General Calibration should be completed.
General Calibration
Linearity Calibration
Digital calibration
Entering the Digital
calibration, see 3.7 for
details
Entering the linearity
calibration, see 3.6 for
details
Entering the General
calibration, see 3.5 for
details
Calibration Switch set to ON
G/N

G/N

F1

F1

F1

G/N

Entering the specification
calibration, see 3.4 for
details
G/N

F1

Spec. Calibration
Entering the MODBUS
calibration, see 3.3 for
details
G/N

F1

MODBUS. Calibration

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3-3 MODBUS calibration
Set RS1-02 to 4 (MODBUS RTU mode) and set RS1-07 to 01 (address)
Calibration switch adjusted to “on” position
For example:
Zero point calibration
Enter 01050423FF007CC0 ← perform zero point calibration
Read the status of zero point calibration
1. Command: Enter 010100410005AC1D
The first “01” means the address of the scale.
The second “01” means “use function code 01 to read the status of the scale”
“00 41” is 65 in decimal, which is the address of the MODBUS.
“00 05” means “ask five addresses in a row which is 65, 66, 67, 68, 69”
2. Scale responses: 01010105919B
The first “01” means the address of the scale.
The second “01” means “use function code 01 to read the status of the scale”
The third “01” means “response with 1 byte”
“05” is “0000 0101” in binary.
The 1st bit of 1 means “address 65 = 1”, which means “in process of zero point
calibration”.
The 2nd bit of 0 means “address 66 = 0”, which means “not in process of span
calibration”.
Please refer to Appendix III Modbus Data Address Table for details.
Zero point calibration is complete when the process is finished without any Error status.
Span calibration
Enter 0110044C0001020BB8EADE ← enter 3000 for calibration weight
Put 3kg weight on the weighing pan
Enter 01050424FF00CD01 ← perform span calibration
Read the status of span calibration
1. Command: Enter 0101004200015DDE.
2. Scale responses: 010101019048.
The first “01” means the address of the scale.
The second “01” means “use function code 01 to read the status of the scale”
The third “01” means “response with 1 byte”
The fourth “01” is “0000 0001” in binary.
The 1st bit of 1 means “address 66 = 1”, which means “in process of span calibration”.
Please refer to Appendix III Modbus Data Address Table for details.
“9048” is the CRC check code.
Press key
CCP flashes

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3-4 Specification calibration
Press
Key in calibration
code
Press
Display shows the
previous parameter
code. Input the new
code as required
Press
To continue the next function setting
or press to escape
Increment flashing
digit
Decrement flashing
digit
Move flashing point
left.
Move flashing point
right
Store data in
memory
Exit / Escape
*Calibration parameter code
Unit
Decimal Point
Min. Division
Max. Capacity
Zero Range
Time of Zero tracking
Range of Zero tracking
Investigate period of unstable
Investigate range of unstable
Function Zero and Tare when
the weight is unstable.
Tare function availability when
gross weight is negative.
G/N

F1

F

F2
