RICE LAKE SCT-4X-MODBUS TCP IP Weight Transmitter User 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
Indicator Light Descriptions
- Reboot the weight transmitter
- Press the key when display shows the 888888 message
Function Mode
. Maximum Scale Capacity, Increment and Decimal Point Settings
Zeroing Mechanical Tare (pre-tare zeroing)
Inputs Settings
RS485 Port
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.
Example:
The unbalance condition is signalled via Modbus / Fieldbus or a digital output (refer to the complete manual to set the output).
This function is only available if EXCL.CH = NoNE.
Use this function only in systems where the load is evenly distributed
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.er.36 | Calibration error | Verify the signal from the load cell is not negative. |
| C.er.37 | Calibration error | Verify the signal from the load cell is not negative. |
|
Err.mo |
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. |
| adC.err | A/D converter error | Converter failure. Reboot the instrument. |
| Cel.err | Global load cell error | Signal anomaly: check the load cells connection. |
| Er.Cel.1
… Er.Cel.4 |
Load cell error |
Signal anomaly: check the indicated load cell connection. |
Modbus TCP
MODBUS TCP REGISTERS – CH / ind.ch (1 SCALE)
| Data | Register | DESCRIPTION | |
|
Gross weight |
30001 |
Bytes 1, 2, 3 and 4 contain the Gross Weight value. |
|
| 30003 | |||
|
Net weight |
30005 |
Bytes 5, 6, 7 and 8 contain the Net Weight value. |
|
| 30007 | |||
|
Input status register |
30009 |
Bit 15(msb) Bit 14
Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 (lsb) |
Active channel. Bit 15 Bit 14 Active Channel
Active channel. No function. 0 0 Channel 1 No function. 0 1 Channel 2 No function. No function. 1 0 Channel 3 Status of input n. 2. 1 1 Channel 4 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 |
30011 |
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 |
30013 |
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 | 30015 | Shows the value of the selected page (3001). | |
| µV Channel 1 | 30017 | Bytes 16 and 17 contain the µV value of the channel 1. | |
| µV Channel 2 | 30019 | Bytes 18 and 19 contain the µV value of the channel 2. | |
| µV Channel 3 | 30021 | Bytes 20 and 21 contain the µV value of the channel 3. | |
| µV Channel 4 | 30023 | Bytes 22 and 23 contain the µV value of the channel 4. | |
MODBUS TCP REGISTERS – ch (4 SCALES)
| Data | Register | DESCRIPTION | ||||
|
Status register scale 1 |
30001 |
Bit 15(msb) Bit 14
Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 (lsb) |
Not used. Not used. Not used.
Scale active (0 = “no”; 1 = “yes”). Decimals (00 = 0; 01 = 1; 10 = 2; 11 = 3) Unit of Measure (00 = “g”; 01 = “kg”; 10 = “t”; 11 = “lb”). |
|||
| Bit 7(msb) Bit 6
Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 (lsb) |
Tare PT (1 = PT tare is active). Tare (1 = Tare is active).
Net Weight Polarity (0 = “+”; 1 = “-”). 1 = Scale unloaded (gross weight = 0). Overload condition (0 = No; 1 = overload). Underload condition (0 = No; 1 = underload). Stability (0 = “unstable”; 1 = “stable”). Gross Weight Polarity (0 = “+”; 1= “-”). |
|||||
| Status register scale 2 | 30002 | Same as Status register scale 1. | ||||
| Status register scale 3 | 30003 | Same as Status register scale 1. | ||||
| Status register scale 4 | 30004 | Same as Status register scale 1. | ||||
|
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. |
|||
| No function. | ||||||
| Command status register | 30006 | Same as Command status register page 10. | ||||
| Output status register | 30007 | Same as Output status register page 10. | ||||
| Selected page | 30008 | Shows the value of the selected page (2000). | ||||
|
Gross weight scale 1 |
30009 |
Bytes 16, 17, 18 and 19 contain the Gross Weight of scale 1. |
||||
| 30010 | ||||||
|
Gross weight scale 2 |
30011 |
Bytes 20, 21, 22 and 23 contain the Gross Weight of scale 2. |
||||
| 30012 | ||||||
|
Gross weight scale 3 |
30013 |
Bytes 24, 25, 26 and 27 contain the Gross Weight of scale 3. |
||||
| 30014 | ||||||
|
Gross weight scale 4 |
30015 |
Bytes 28, 29, 30 and 31 contain the Gross Weight of scale 4. |
||||
| 30016 | ||||||
DEVICENET REGISTERS FOR COMMAND SENDING
| Data | Register | DESCRIPTION |
|
Command |
30001 |
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 |
30002 |
First parameter of the command. Parameter is always expressed in absolute mode (no decimals, no sign). |
|
30003 |
||
|
Parameter 2 |
30004 |
Second parameter of the command. Parameter is always expressed in absolute mode (no decimals, no sign). |
|
30005 |
||
| 30006 |
Used in advanced configuration, refer to the complete Fieldbus manual for further information. |
|
| … | ||
| 30016 |
EXAMPLE 1
For zeroing the weight on the scale:
Set the command in byte 2
| Register | Value |
|
30001 |
01 Hex |
EXAMPLE 2
For setting a preset tare of 1000 lb:
- Set the tare value in parameter 1 (byte 3, 4, 5, 6)
- Set the command in byte 2
| Register | Value |
|
30001 |
03 Hex |
|
30002 |
00 Hex |
|
30003 |
03E8 Hex |
Read More About This Manual & Download PDF:
Documents / Resources
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RICE LAKE SCT-4X-MODBUS TCP IP Weight Transmitter [pdf] User Guide SCT-4X-MODBUS TCP IP Weight Transmitter, SCT-4X-MODBUS TCP, IP Weight Transmitter, Weight Transmitter, Transmitter |