Delta DVP Ethernet

7 min

Review the following information for setting up and configuring the Delta DVP Ethernet (Gen2) driver.

Litmus Edge Compatible Series

Compatibility parameter	Compatible items
Driver type	Ethernet
When to use	TCP connection to a Delta DVP series PLC
Supported device models	Delta DVP Series (ES2/EX2/SS2/SA2/SX2/SE/SV2)
Validated devices/series	Delta DVP Series
Replaces Gen 1 driver(s)	Delta DVP (Gen1.3) Learn more about Gen1 and Gen2 Driver Differences

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 the device is configured for Ethernet access, find its network parameters. Otherwise, follow the steps below.

To configure your device:

Record the following information and refer to it when needed.

Device: Delta DVP-12E

Communication I/F: Ethernet. Refer to the following figure.

Delta DVP reference

Launch IPSoft V3.06 software and then open a new project.

Search for the device.

Click the device, click the Basic tab, and set up the network parameters.

Network parameters

Launch COMMGR and configure the driver.

Click Tool > Communication Setting, select the driver and then click Connect.

Connect option

Step 2: Set up the PLC Device in Litmus Edge DeviceHub

Configure the following parameters when you Connect a Device with this driver. Update default values to the specific setup of your device.

Parameter	Value
Type	Delta PLC
Driver	Delta DVP Ethernet
Network Address	The device address you defined in Step 1
Network Port	502
Station ID	0
Response Timeout	1500 (ms)
Max Request Size	125

Step 3: Configure the List of Registers

When you Add a Tag to the connected device, refer to the following register table and tag parameters.

See the following additional resources if necessary:

Organize Device and Tag Data by Using MetadataOrganize Device and Tag Data by Using Metadata

Tag Formula VariablesTag Formula Variables

Register Table

Note: The address format and the supported value types in this Gen 2 driver are different from the Gen 1 driver (Delta DVP (Gen1.3)) for the same device. Learn more about Gen1 and Gen2 Driver Differences.

Name	Value Types	Access Types	Address Format	Max Address	Description
C_Bit	bit	R/W	DDD	255	Counter Contact
M	bit	R/W	DDDD	4095	Auxiliary Relay
S	bit	R/W	DDDD	1023	Step Point
T_Bit	bit	R/W	DDD	255	Timer Contact
X	bit	R	OOO	255	Discrete Input
Y	bit	R/W	OOO	255	Discrete Output
T	word, int16, int32, uint32, int64, uint64, float32, float64	R/W	DDD	255	Timer Current Value
C	word, int16, int32, uint32, int64, uint64, float32, float64	R/W	DDD	255	Counter Current Value
D	word, int16, int32, uint32, int64, uint64, float32, float64, string	R/W	DDDD	9999	Data Register

Tag Parameters

Name: Select a register name from the drop-down list. The available options depend on the names in the register table.

Value Type: Select a data type from the drop-down list. The available options depend on the register name selected.

String Length (only available when the string value type is selected): Enter the number of characters to read or write for the string value, within the allowed range (1–250).

Polling Interval: Enter a value in seconds. This determines how often the tag should poll the register for data. Enter 0 to disable polling.

Tag Name: Enter a name for the tag.

Description (Optional): Enter a description for the tag.

Address: Enter a tag address. The value must in the decimal format, within the allowed min/max range. Omit the leading zeros. The device might use the decimal (D), hexadecimal (H), or octal (O) address format. See the Register Table at the bottom of the dialog box. For Bit tags, append the bit address without the bit separator. The lowercase letters in the address format indicate how many digits you should enter in the Bit address.

Count: Enter the number of register values to read. A count higher than 1 will generate an array of values from the address value configured and respective subsequent address values.

Tag Formula: Enter a formula for the tag to process the generated data. Two variables are permitted: value (current tag value) and timestamp (current tag UNIX time in milliseconds). The following math functions are available:

sqrt

power: power(x) performs the operation 10^x.

log: log(x) is the natural logarithm (the logarithm is in base e).

exp: exp(x) performs the operation e^x.

Only Publish on Change of Value: Select the checkbox to only publish NATS messages when the value parameter changes to a new value. Change of Value only applies to boolean, numeric (such as int or float), and simple string data types. It does not apply to complex types, such as JSON or array. Poll-once topics will not be affected by Change of Value settings. These topics will still only see a single message.

Meta Data: Metadata summarizes basic information about data. This feature allows you to define key-value pair data for the device output payload later on. Metadata can then be used to find, use, and reuse particular instances of data.

Note: If you use special characters in meta data key names, the special characters are replaced with underscore characters in the payload. This can cause two key names to be combined into one. For example, configuring the key names a**b and a&&b will cause only one key name to be created (a__b).