Enron Modbus

6min

Note: If multiple stations are connected to the RS-485 bus, then use the Modbus ASCII Advanced﻿ driver instead of this one. 
Review the following information for setting up and configuring the Enron Modbus driver. 
Litmus Edge Compatible Series 
Compatibility parameter
Compatible items
Driver type
Serial (RS-485) or Ethernet
When to use 
Serial connection or TCP connection to a Modbus device 
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
Step 1: Set up and Configure the PLC Device
If you are setting up an Ethernet connection, find the device's network parameters. 
If you are setting up a serial connection, record the serial communication parameters for the device. 
Step 2: Set up the PLC Device in Litmus Edge DeviceHub
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Parameter
Value
Type
Modbus
Driver
Enron Modbus
Override Station ID
Override registers' Station ID setting
False
True
Override BW Order
Override registers' "Bytes And Words Order" setting
False
True
Protocol Mode
RTU
ASCII
Request Timeout (ms)
2000
Transport Type
Serial
TCP/IP
Network Address
If TCP/IP selected
The device address you recorded in Step 1.
Network Port
If TCP/IP selected
502
Device File
If Serial selected
The file of the serial port you are using 
Baud Rate
If Serial selected
1200
2400
4800
9600
19200
38400
57600
115200
230400
460800
921600
Data Bits
If Serial selected
5
6
7
8
Stop Bits
If Serial selected
1
1.5
2
Parity
If Serial selected
Even
Mark
None
Odd
Space
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Name
Value Types
Address Format
Min Address
Max Address
Description
1x
bool
1DDD
100
1999
Boolean Registers
3x
int16
3DDD
3001
1999
Short 16-bit Integer Registers
5x
int32
5DDD
5001
1999
Long 32-bit Integer Registers
7x
float32
7DDD
7001
65535
Floating Point Registers
EventAlarm
JSON
﻿
﻿
﻿
Event/Alarm Register
Acknowledgment


bool
﻿
﻿
﻿
Event/Alarm Acknowledgment (write only)
Archive
JSON
7DD
701
799
Hourly and Daily Archive
Str
string
5DDD
5001
5999
String Registers (5x)
﻿
﻿

Compatibility parameter	Compatible items
Driver type	Serial (RS-485) or Ethernet
When to use	Serial connection or TCP connection to a Modbus device

Parameter	Value
Type	Modbus
Driver	Enron Modbus
Override Station ID Override registers' Station ID setting	False True
Override BW Order Override registers' "Bytes And Words Order" setting	False True
Protocol Mode	RTU ASCII
Request Timeout (ms)	2000
Transport Type	Serial TCP/IP
Network Address If TCP/IP selected	The device address you recorded in Step 1.
Network Port If TCP/IP selected	502
Device File If Serial selected	The file of the serial port you are using
Baud Rate If Serial selected	1200 2400 4800 9600 19200 38400 57600 115200 230400 460800 921600
Data Bits If Serial selected	5 6 7 8
Stop Bits If Serial selected	1 1.5 2
Parity If Serial selected	Even Mark None Odd Space

Name	Value Types	Address Format	Min Address	Max Address	Description
1x	bool	1DDD	100	1999	Boolean Registers
3x	int16	3DDD	3001	1999	Short 16-bit Integer Registers
5x	int32	5DDD	5001	1999	Long 32-bit Integer Registers
7x	float32	7DDD	7001	65535	Floating Point Registers
EventAlarm	JSON				Event/Alarm Register
Acknowledgment	bool				Event/Alarm Acknowledgment (write only)
Archive	JSON	7DD	701	799	Hourly and Daily Archive
Str	string	5DDD	5001	5999	String Registers (5x)

Updated 23 Sep 2024

Modbus UDP (Gen1)

Modbus ASCII