Rice Lake SCT-1SX-MODBUS TCP/IP User manual

SCT-1SX-MODBUS TCP/IP
Quick Start Guide
PN 219717 Rev ASeptember 29, 2023

Electrical Schematic
3© Rice Lake Weighing Systems •All Rights Reserved
Internal use
ETHERNET I/O PORT 1 ETHERNET I/O PORT 2
+-
IN 2 IN 1 COM RL2 RL1
12 / 24 Vdc
RL4 RL3
8 9763 4 51 2
14 1512 13 16 17
LOAD CELL
+
+
-
-
E +
E -
S+
S-
ON
EXC - EXC + REF - REF + SIG - SIG +
CAL
For UL approved models:
equipment to be powered by
12 to 24 Vdc LPS or Class 2
power source.
INPUT: 12 to 48 Vdc
OUTPUT: 48Vac or 60Vdc, 0.5 A
max
CONSUMPTION: 4 W max.
(without load cells).
!
!
1. Electrical Schematic
Load cells excitation: 5 V.
Load cells output: 6 mV/V max.
!
Manuals are available from Rice Lake Weighing Systems at www.ricelake.com/manuals
Warranty information is available at www.ricelake.com/warranties
i

SCT-1SX-MODBUS TCP/IP
4 Visit our website www.RiceLake.com
C
C
1 2 3 4 5 6
2. Key Functions
3. Indicator Light Descriptions
Configuration menu
Decreases digit / Scrolls down.
Increases digit / Scrolls up.
Enters the setup.
Selects digit to modify.
Enters a step / Confirms.
CClears / Exits a step (no save).
Weighing mode
Clears the displayed gross weight.
Short press: executes semiautomatic tare.
Long press: allows to enter known tare.
Activates / deactivates the function.
Short press executes data transmission on the
printer serial port.
Long press: Setpoint configuration.
CON/Standby of the instrument.
1Weight on zero.
2Unstable weight.
3A tare is active.
4A function is active.
5Digital output 1 is active.
6Digital output 2 is active.

Configuration Menu
5© Rice Lake Weighing Systems •All Rights Reserved
div.deC
Cel.sen
span
i n P. 0 2
i n P. 0 1
oP
Cel.Cap
dead.ld
zero
0.Calib
adC.v
inPs
o  . 0 1
o  . 0 4
888888
CapaC
485
filer
CloCk
2
4
6
1
3
5
7
8
9
10 1
2
1
4
11
12
13
14
4. Configuration Menu
1. Reboot the weight transmitter
2. Press the key when display shows the 888888 message:
HOW TO EXIT THE MENU AND SAVE YOUR CONFIGURATION
1. Press Ckey repeatedly until save? appears; press to save or press Cto exit without saving.
Theoretical calibration (section 6).
Zeroing of the deal load (pre-tare zeroing) (section 7).
RS485 port configuration (section 12).
Digital input configuration (section 10).
Digital output configuration (section 11).
Scale configuration: capacity, resolution and decimal point (section 5).
Calibration with sample weight (section 8).
Load cells diagnostic (section 9).
Weight filter (section 13).
Date and time setting (with optional card only).

SCT-1SX-MODBUS TCP/IP
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888888
888888 div.deC
div.deC
...
Cel.Cap
div.deCCel.sen
dead.ld
div.deC
div.deCCapaC
1
2
3
4
5
5. Maximum Scale Capacity, Increment and Decimal Point Settings
Set the decimal point position and the minimum scale increment*1
( 0,001 - 0,002 - 0,005 - 0,01 - 0,02 - 0,05 - 0,1 - 0,2 - 0,5 - 1- 2- 5- 10 - 20 - 50 ).
Set the maximum scale capacity*2(max 999999 ).
Examples:
6. Theoretical Calibration
Set the total load cells capacity (up to 999999).
Set the load cells sensitivity (up to 999999).
Dead load weight (from -9999.9 to 99999.9).
*1Increment = the amount that the scale will increment by as weight is added or removed.
*2Maximum capacity = the maximum weight that can be measured using the scale you are creating.
1. Set div.deC and CapaC
(section 4).
2. Set in Cel.Cap the total load cells
capacity (sum of the nominal load cell
capacities).
3. Set in Cel.sen the theoretical signal
value of the load cells.
4. Enter in dead.ld step. The display
shows the theoretical dead load
value. Modify the value and/or confirm
with .
For a 60000 lb scale, with 2 lb
increment:
div.deC = 2
CapaC = 60000
For a 10000 g scale, with 0.1 g increment:
div.deC = 0,1
CapaC = 10000,0
For a 3000 lb scale, with 0.05 lb
increment:
div.deC = 0,05
CapaC = 3000,00
5. Save calibration (Press Ckey many
times until save? message will
appear, then press to confirm).

Zero Mechanical Tare (pre-tare zeroing)
7© Rice Lake Weighing Systems •All Rights Reserved
888888
888888
888888
div.deC
div.deC
...
0.Calib
div.deC
div.deC
...
zero
Span
div.deC
...
adC.v
6
8
7
9
7. Zero Mechanical Tare (pre-tare zeroing)
Zeroing of the pre-tare (or mechanical tare).
This functionality allows to zero the weigh of the scale structure (e.g. empty silo, conveyor, etc.) without changing the calibration in
memory.
8. Calibration with Sample Weight
Zero point acquisition.
1. Unload the scale. 2. Enter the zero step to adjust the
zero point.
Sample weight acquisition.
3. Load the scale with span weight.
4. Enter the span step, type the span
weight value and press to adjust.
9. Load Cells Diagnostics (µV/V)
It allows to verify signal of each channel. It must be included into the range 0 to 3 mV/V.
Signal have to be stable and it have to increase by increasing the weight on the scale.
5. Save adjustment (Press Ckey many
times until save? message will
appear, then press to confirm).

SCT-1SX-MODBUS TCP/IP
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888888
C
none
are
mode
off
zero
prin
dis.key
div.deC
...
inps div.deCinp.01
inp.02
11 1
2 1
4
2
5
3
6
7
8
10.Input Settings
See INP.02
Input disabled.
When input is active, transmitter keyboard is locked.
When input is active, transmitter reboots.
Emulation of Ckey.
Emulation of key.
Emulation of key.
Emulation of key.
Emulation of key.

Output Settings
9© Rice Lake Weighing Systems •All Rights Reserved
s.1 on
s.2 on
888888 div.deC
...
oUTPUT
no/nC
0 none
fnC
1 Gros
2 ne
div.deCo.01
o.04
888888 ...
Fb.ini mod.Cp
... Fb.Se?
...
div.deC
...
FLDBUS div.deCYES
No
...
div.deC a.CfG
ip.add
ne.msk
Ga.way
Fb.Se
12 1
4 1
2 1
2
3
13
1
2
3
4
11. Output Settings
See o.04.
Setpoint on gross weight.
Setpoint on net weight.
Output disabled.
Normally open / normally close.
11.1 HOW TO PROGRAM SETPOINTS
1. In weighing mode, press
for 3 second.
2. Select the setpoint to modify:
Set the output 1
setpoint value.
Set the output 2
setpoint value.
Static IP address.
Subnet mask.
Default gateway.
12. Fieldbus Settings
Set the IP address:
Dynamic IP address.
3. Press Ckey to save and exit
the menu.

SCT-1SX-MODBUS TCP/IP
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888888 div.deC
...
filer
14
13. Weight Filter
The active weight filter is displayed, alternating with the weight value.
Press and keys to scroll through the available filters (from slowest to fastest, F1 to F11).
14. Programming Errors
MESSAGE DESCRIPTION SOLUTION
preC. Calibration error First calibrate the zero point (zero), then proceed with sample
weight acquisition (span) (section 9).
Err.pn Calibration error Check the connection of the load cell. Verify the load cell signal is
stable, valid and greater than the previously acquired point.
Er 11 Calibration error Increase the calibration weight.
Er 12 Calibration error Check the signal from the load cell increases when weight is
incremented on the scale.
Er 37 Calibration error Repeat calibration and verify capacity and division have been
correctly set.
Er 39 Instrument not configured Transmitter needs to be configurated.
C.e r. 36 Calibration error Verify the signal from the load cell is not negative.
C.e r. 37 Calibration error Verify the signal from the load cell is not negative.
Err.mo Weight unstable
Check in adC.v parameter that the signal is stable.
If the connection of the cells is with 4 wires, check that the sense
jumpers are inserted.
adC.err A/D converter error Converter failure. Reboot the instrument.
Cel.err Global load cell error Signal anomaly: check the load cells connection.

Modbus TCP
11© Rice Lake Weighing Systems •All Rights Reserved
15. Modbus TCP
15.1 MODBUS TCP REGISTERS
Data Register DESCRIPTION
Gross weight
30001 (H)
Registers 30001 and 30002 contain the Gross Weight value.
30002 (L)
Net weight
30003 (H)
Registers 30003 and 30004 contain the Net Weight value.
30004 (L)
Input status
register
30005
Bit 15
(msb)
Bit 14
Bit 13
Bit 12
Bit 11
Bit 10
Bit 9
Bit 8 (lsb)
Active channel.
Active channel.
No function.
No function.
No function.
No function.
Status of input n. 2.
Status of input n. 1.
Bit 7(msb)
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0 (lsb)
1 = Scale unloaded (gross weight = 0).
Tare PT (1 = PT tare is active).
Tare (1 = Tare is active).
Overload condition (0 = No; 1 = Overload).
Underload condition (0 = No; 1 = Underload).
Weight Stability (0 = Unstable; 1 = Stable).
Gross Weight Polarity (0 = “+”; 1 = “-”).
Net Weight Polarity (0 = “+”; 1 = “-”).
Command status
register
30006
Last received command.
Bit 7(msb)
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0 (lsb)
Last command result.
Last command result.
Last command result.
Last command result.
Counting of processed commands.
Counting of processed commands.
Counting of processed commands.
Counting of processed commands.
Output status
register
30007
No Function.
Bit 7(msb)
...
Bit 2
Bit 1
Bit 0(lsb)
No function.
...
No function.
Digital output 2 status (0 = OFF; 1 = ON).
Digital output 1 status (0 = OFF; 1 = ON).
Selected page 30008 Shows the value of the selected page (3001).
µV 30009 µV value.
Bit 15 Bit 14 Active Channel
0 0 Channel 1
0 1 Channel 2
1 0 Channel 3
1 1 Channel 4

SCT-1SX-MODBUS TCP/IP
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15.2 MODBUS TCP REGISTERS FOR COMMAND SENDING
Data Register DESCRIPTION
Command 40001
Main available commands:
Value Command
00 Hex No command
01 Hex Scale zeroing
02 Hex Tare
03 Hex Preset Tare
0A Hex Setpoint 1 setting
0B Hex Setpoint 2 setting
19 Hex Digital output setting
22 Hex Reboot the weight transmitter
Parameter 1
40002 (H)
First parameter of the command.
Parameter is always expressed in absolute mode (no decimals, no sign).
40003 (L)
Parameter 2
40004 (H)
Second parameter of the command.
Parameter is always expressed in absolute mode (no decimals, no sign).
40005 (L)
40006
Used in advanced configuration, refer to the complete Fieldbus manual for further information....
40016
EXAMPLE 1
For zeroing the weight on the scale:
2. Set the command in byte 2
Byte Value
100 Hex
201 Hex
EXAMPLE 2
For setting a preset tare of 1000 lb:
1. Set the tare value in parameter 1 (byte 3, 4, 5, 6)
2. Set the command in byte 2
Byte Value
100 Hex
203 Hex
3(MSB) 00 Hex
400 Hex
503 Hex
6(LSB) E8 Hex

Modbus TCP
13© Rice Lake Weighing Systems •All Rights Reserved
Notes

SCT-1SX-MODBUS TCP/IP
14 Visit our website www.RiceLake.com
Notes

230 W. Coleman St. • Rice Lake, WI 54868 • USA USA: 800-472-6703 • International: [phone]
© Rice Lake Weighing Systems Content subject to change without notice.
www.ricelake.com
PN 219717 Rev ASeptember 29, 2023