System Overview
JASCH Industries is a leading Indian manufacturer of Quality Control Systems (QCS) for the paper industry. Their systems are widely installed in Indian paper mills and offer excellent compatibility with the PowerFlow Dilution Control System via Modbus TCP.
JASCH QCS systems are one of the most popular choices for Indian paper mills due to competitive pricing, local support, and good performance. Integration with PowerFlow Dilution Control is straightforward.
Supported Models
The following JASCH QCS models are supported:
| Model | Interface | Features |
|---|---|---|
| JASCH QCS-5000 | Modbus TCP | Latest generation, easy integration |
| JASCH QCS-4000 | Modbus TCP | Widely installed, full profile support |
| JASCH QCS-3000 | Modbus TCP/RTU | Earlier generation, check Modbus TCP availability |
| JASCH Scanner Systems | Modbus TCP | Standalone scanner systems |
Network Setup
Configure the network connection between the Dilution Control PC and the JASCH QCS system:
Physical Connection
- Connect an Ethernet cable from the control PC to the industrial switch
- Ensure the JASCH QCS computer/controller is on the same network
- Use CAT5e or CAT6 Ethernet cables for reliable connection
IP Configuration
Configure the control PC with a static IP address in the same subnet as the JASCH system:
Example Network Configuration
| JASCH QCS IP | 192.168.1.50 |
From JASCH configuration |
| Control PC IP | 192.168.1.10 |
Same subnet |
| Subnet Mask | 255.255.255.0 |
Standard Class C |
| Gateway | 192.168.1.1 |
If required |
The JASCH QCS IP address can be found in the JASCH configuration software. Navigate to System Settings > Network Configuration, or contact your JASCH service engineer.
Modbus Configuration
Configure the Dilution Control System to connect to the JASCH QCS:
-
Open Scanner Configuration
Go to Settings > Scanner Configuration
-
Select Scanner Type
Choose JASCH from the Scanner Type dropdown, or select Generic Modbus for manual configuration
-
Configure Connection
Connection Settings
Interface Modbus TCPStandard protocol IP Address 192.168.1.50JASCH QCS IP Port 502Modbus TCP standard Slave ID 1Default Timeout 3000 msRecommended -
Configure Profile Settings
Profile Settings
Number of Databoxes 200Match JASCH configuration (typically 100-250) Profile Register 0Starting register address Data Type Float 32-bitIEEE 754 Byte Order Big EndianJASCH default (verify with JASCH) -
Test Connection
Click Test Connection to verify communication
-
Save Configuration
Click Save to apply settings
Register Map
The JASCH QCS exposes profile data via Modbus registers. The exact register addresses may vary based on JASCH configuration.
Typical JASCH Register Map
| Register | Count | Type | Description |
|---|---|---|---|
| 0 | 400 | Float (2 regs each) | Basis Weight Profile (200 points) |
| 400 | 2 | Float | Profile Average |
| 402 | 2 | Float | Profile Sigma (2-sigma deviation) |
| 404 | 1 | Int16 | Scanner Status |
| 405 | 1 | Int16 | Profile Valid (0=Invalid, 1=Valid) |
| 406 | 1 | Int16 | Number of Valid Databoxes |
Register addresses and data formats may vary between JASCH models and software versions. Contact JASCH or check your JASCH documentation for the exact register map for your installation.
JASCH Contact for Register Map
To obtain the exact Modbus register map for your JASCH system:
- Contact JASCH Industries technical support
- Provide your JASCH model number and software version
- Request the Modbus TCP communication protocol document
Zone Mapping
Configure the mapping from JASCH scanner databoxes to dilution actuator zones:
Mapping Parameters
Zone Mapping Configuration
| Front Side Offset | 10 |
Databoxes to skip at front edge |
| Back Side Offset | 10 |
Databoxes to skip at back edge |
| Mapping Direction | Front to Back |
Match physical layout |
| Number of Zones | 48 |
Number of dilution valves |
Verifying Zone Mapping
To verify correct zone mapping:
- Open the Profile Display in the main window
- Compare the displayed profile with the JASCH QCS display
- Verify the profile edges align correctly
- If possible, create a known disturbance and verify it appears in the correct zone
Testing & Verification
-
Verify Connectivity
Ping the JASCH QCS from the control PC:
ping 192.168.1.50Expected: Successful ping response
-
Test Modbus Connection
In Scanner Configuration, click Test Connection
Expected: "Connection successful" message
-
Verify Profile Data
Check the Profile Display panel:
- Profile should update with each scanner traverse
- Values should be in expected basis weight range
- Profile shape should match the JASCH display
-
Compare with JASCH Display
Compare key values:
- Profile average should match JASCH average
- Profile sigma (2-sigma) should match
- Number of valid databoxes should match
-
Test Profile Response
If safe to do so, create a small process disturbance and verify:
- Disturbance appears in the correct position
- Zone mapping is correct
- Response direction is correct
Troubleshooting
Connection Problems
| Issue | Possible Cause | Solution |
|---|---|---|
| Cannot ping JASCH IP | Network configuration issue | Verify IP addresses, check cables, confirm JASCH is powered on |
| Modbus connection timeout | Modbus TCP not enabled | Ask JASCH engineer to enable Modbus TCP server |
| Connection refused | Wrong port or firewall block | Confirm port 502 is open, check firewall settings |
Data Problems
| Issue | Possible Cause | Solution |
|---|---|---|
| Profile values are zero | Wrong register address or scanner parked | Verify register map with JASCH, check scanner status |
| Values are very large/small | Wrong data type or byte order | Try different byte order settings, verify Float vs Int |
| Profile looks mirrored | Mapping direction wrong | Toggle mapping direction in configuration |
| Profile not updating | Stale data or scanner stopped | Check Profile Valid flag, verify scanner is scanning |
Getting Help
JASCH Industries Support
For JASCH-specific configuration issues, Modbus register maps, and system settings.
Website: www.jaschindia.com
PowerFlow Support
For Dilution Control System configuration and integration assistance.
Email: [email protected]