RICE LAKE SCT-4X Ethernet IP Weight Transmitter User Guide

SCT-4X-Ethernet/IP
Quick Start Guide

Electrical Schematic

Manuals are available from Rice Lake Weighing Systems at www.ricelake.com/manuals
Warranty information is available at www.ricelake.com/warranties

Key Functions

| Configuration menu
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| Decreases digit / Scrolls down.
| Increases digit / Scrolls up.
| Enters the setup.
| Selects digit to modify.
| Enters a step / Confirms.
| Clears / Exits a step (no save).

Weighing mode

| Clears the displayed gross weight.
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| Short press: executes semiautomatic tare.
Long press: allows to enter known tare.
| Long press: switches between scales (only in Mode 2 “ind.Ch”).
| Short press: executes data transmission on the printer serial port.
Long press: Setpoint configuration.
| ON/Standby of the instrument.

 Indicator Light Descriptions

| Weight on zero.
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~| Unstable weight.
NET| A tare is active.
F| A function is active.
W1  SP1| Digital output 1 is active.
W2 SP2| Digital output 2 is active.

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
Press C key repeatedly until save? appears; press to save or press C to exit without saving.

 Function Mode

MODE 1 “DEP.CH”
Allows to connect directly the load cells, equalize them (if necessary) and transmit each load cell data and the total weight through Fieldbus. MODE 2 “IND.CH”
Allows to manage up to 4 independent scales and transmit all data of each scale through Fieldbus.

Maximum Scale Capacity, Increment and Decimal Point Settings

* 1 Increment = the amount that the scale will increment by as weight is added or removed.

• 2 Maximum capacity = the maximum weight that can be measured using the scale you are creating.

Theoretical Calibration

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.

Calibration with Sample Weight

Load Cell 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.
**** With more channels connected, it’s possible to scroll between channels with keys and .

Inputs Settings

Outputs Settings

12.1 HOW TO PROGRAM SETPOINTS

RS485 Port

**** The RS485 port is configured by default to communicate in Modbus RTU.

Fieldbus Settings

Load Cell Exclusion (for dependent channel systems)

If a load cell is broken, it’s possible to temporarily exclude the channel where it is connected and continue to weigh, pending replacement.
WARNING: this operation reduces the accuracy of the weighing system. We recommend use for liquid weighing or in applications where the load is evenly distributed.

Weight Filter

Unbalancing

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 F10).

The instrument has an active unbalance function as standard that signals if the load is unevenly distributed, compared to the condition saved via step .
Imbalance occurs when the load distribution percentage value on a cell deviates by at least 10% for more than 3 seconds.
Example: The unbalance condition is signaled via Modbus / Fieldbus or a digital output (refer to the complete manual to set the output).
**** This function is only available if
Use this function only in systems where the load is evenly distributed.

Programming Errors

sample weight acquisition (span) (section 9).
| Calibration error| Check the connection of the load cell. Verify the load cell signal is stable, valid and greater than the previously acquired point.
| Calibration error| Increase the calibration weight.
| Calibration error| Check the signal from the load cell increases when weight is incremented on the scale.
| Calibration error| Repeat calibration and verify capacity and division have been correctly set.
| Instrument not configured| Transmitter needs to be configurated.
| Calibration error| Verify the signal from the load cell is not negative.
| Calibration error| Verify the signal from the load cell is not negative.
| Weight unstable| Check in adC.uv parameter that the signal is stable.
If the connection of the cells is with 4 wires, check that the sense jumpers are inserted.
| A/D converter error| Converter failure. Reboot the instrument.
|  Global load cell error| Signal anomaly: check the load cells connection.
| Load cell error| Signal anomaly: check the indicated load cell connection.

Ethernet/IP

19.1 ETHERNET/IP REGISTERS – (1 SCALE) 19.2 ETHERNET/IP REGISTERS – ind.ch (4 SCALES)![RICE LAKE SCT-4X Ethernet IP Weight Transmitter

• fig 2](https://manuals.plus/wp-content/uploads/2024/02/RICE-LAKE-SCT-4X- Ethernet-IP-Weight-Transmitter-fig-2.png) 19.3 ETHERNET/IP REGISTERS FOR COMMAND SENDING EXAMPLE 1
  For zeroing the weight on the scale:
  2. Set the command in byte 2

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

230 W. Coleman St.
Rice Lake, WI 54868
USA USA:800-472-6703 
International: +1-715-234-9171
© Rice Lake Weighing Systems
Content subject to change without notice.
www.ricelake.com
PN 219718 Rev AMay 25, 2023

Documents / Resources

| RICE LAKE SCT-4X Ethernet IP Weight Transmitter [pdf] User Guide
SCT-4X Ethernet IP Weight Transmitter, SCT-4X, Ethernet IP Weight Transmitter, IP Weight Transmitter, Weight Transmitter, Transmitter
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References

• Rice Lake Weighing Systems

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