Modbus RTU (Gen1)
Note: This driver will be deprecated in a future release. We recommend using the Gen 2 Modbus RTU.
Review the following information for setting up and configuring the Modbus RTU (Gen1) driver.
Compatibility parameter | Compatible items |
|---|---|
Driver type | Serial |
When to use | Serial connection to a device using Modbus RTU |
Replaced with Gen 2 driver | Modbus RTU |
To set up and configure this device in Litmus Edge, you will need to do the following:
- Step 1: Set up and Configure the PLC Device
- Step 2: Set up the PLC Device in Litmus Edge DeviceHub
- Step 3: Configure the List of Registers
Parameter | Value |
|---|---|
Type | Modbus |
Driver | Modbus RTU (Gen1) |
Communication Port | Local Serial connection file path |
Data Bits | 8 |
Baud Rate | 9600 |
Parity | Even, Odd, None |
Stop Bits | 1 |
Station ID | 1 |
Name | Value Types | Address Format | Min Address | Max Address | Description |
|---|---|---|---|---|---|
D | bit | DDDD | 1 | 9999 | Discrete Input Contacts |
C | bit | DDDD | 1 | 9999 | Discrete Output Coils |
H_Bit | bit | DDDDdd | 100 | 999915 | Analog Output Holding Registers |
I_Bit | bit | DDDDdd | 100 | 999915 | Analog Input Registers |
H | int, uint | DDDD | 1 | 9999 | Analog Output Holding Registers |
I | int, uint | DDDD | 1 | 9999 | Analog Input Registers |
H_Ulong | ulong, ulong (big-endian) | DDDD | 1 | 9998 | Analog Output Holding Registers |
I_Ulong | ulong, ulong (big-endian) | DDDD | 1 | 9998 | Analog Input Registers |
H_Float | float, float (big-endian) | DDDD | 1 | 9998 | Analog Output Holding Registers |
I_Float | float, float (big-endian) | DDDD | 1 | 9998 | Analog Input Registers |
H_Double | double, double (big-endian) | DDDD | 1 | 9996 | Analog Output Holding Registers |
I_Double | double, double (big-endian) | DDDD | 1 | 9996 | Analog Input Registers |