When the SCADAPack x70 device is operating as a Modbus RTU Slave, it can communicate with up to 4 Modbus RTU Masters, 1 through each serial port on the device.
Supported Data Types
When the SCADAPack x70 device is operating as a Modbus RTU Slave, it supports the IEC 61131-3 data types described below.
To configure RemoteConnect Project as Modbus RTU Slave:
1. Verify that Modbus RTU Slave checkbox is checked from Project Configuration Options
2. Go to Configuration Modbus >Slave/Server to Select Modbus Slave Addressing Mode
at least one of the serial ports needs to be configured for Modbus
SCADAPack x70 devices support 5-digit and 6-digit Modbus addressing, you can set up a Modbus Slave to have any of these registers available to a Modbus Master that requests them.
The table below maps 5-digit Modbus address ranges to the equivalent 6-digit Modbus address range.
Use this information to stay within the appropriate address range when moving from 5-digit to 6-digit Modbus addressing.
4. To assign a Modbus address to an Objects, Open Objects >Object Configuration
Select and object and from Modbus tab insert the proper Modbus address and type
5. Apply and save the project
Supported Data Types
When the SCADAPack x70 device is operating as a Modbus RTU Slave, it supports the IEC 61131-3 data types described below.
| SCADAPack Object Type | Modbus IEC Type | Function Code | Modbus Operation |
| DIGITAL | DISCRETE | 1 | Read Coils |
| 2 | Read Status Registers | ||
| 5 | Write Coil | ||
| 15 | Write Multiple Coils | ||
| ANALOG | UINT | 3 | Read Holding registers |
| 4 | Read Input registers | ||
| 6 | Preset Single Register | ||
| 16 | Preset Multiple Registers | ||
| DINT | 3 | Read Holding register pairs | |
| 4 | Read Input register pairs | ||
| 16 | Preset Multiple Register pairs | ||
| INT | 3 | Read Holding registers | |
| 4 | Read Input registers | ||
| 6 | Preset Single Register | ||
| 16 | Preset Multiple Registers | ||
| REAL | 3 | Read Holding register pairs | |
| 4 | Read Input register pairs | ||
| 16 | Preset Multiple Register pairs | ||
| DISCRETE | 1 | Real Coils (up to 16) | |
| 2 | Read Input Status (up to 16) | ||
| 15 | Write Multiple Coils (up to 16) | ||
| COUNTER | UINT | 3 | Read Holding registers |
| 4 | Read Input registers | ||
| 6 | Preset Single Register | ||
| 16 | Preset Multiple Registers | ||
| UDINT | 3 | Read Holding register pairs | |
| 4 | Read Input register pairs | ||
| 16 | Preset Multiple Register pairs |
To configure RemoteConnect Project as Modbus RTU Slave:
1. Verify that Modbus RTU Slave checkbox is checked from Project Configuration Options
2. Go to Configuration Modbus >Slave/Server to Select Modbus Slave Addressing Mode
at least one of the serial ports needs to be configured for Modbus
- Port Function Should be ‘Modbus’
- Port Mode, Baud rate and the Parity should be configured as the Modbus Master
- Modbus RTU Slave >Station Address should be unique per Modbus Link between 1 to 247
SCADAPack x70 devices support 5-digit and 6-digit Modbus addressing, you can set up a Modbus Slave to have any of these registers available to a Modbus Master that requests them.
The table below maps 5-digit Modbus address ranges to the equivalent 6-digit Modbus address range.
Use this information to stay within the appropriate address range when moving from 5-digit to 6-digit Modbus addressing.
| Type | 5-Digit Modbus Address Range | Equivalent 6-Digit Modbus Address Range |
| Coil | 1 to 9999 | 1 to 9999 |
| Status register | 10001 to 19999 | 100001 to 109999 |
| Input register | 30001 to 39999 | 300001 to 309999 |
| Holding register | 40001 to 49999 | 400001 to 409999 |
4. To assign a Modbus address to an Objects, Open Objects >Object Configuration
Select and object and from Modbus tab insert the proper Modbus address and type
5. Apply and save the project
Released for:Schneider Electric USA
