Omron FINS driver

Connecting to Omron CJ / CS / CP / NJ series PLCs via FINS/TCP or FINS/UDP and reading and writing using memory area addresses (D100, CIO100.00, W10); node numbers.

When to use it

The FINS driver reads and writes via the Ethernet unit of Omron CJ, CS, CP and NJ series PLCs using FINS/TCP (default) or FINS/UDP. The default port is 9600. An address consists of the memory area and the word number (D100, CIO100.00). The serial line (Host Link) is not supported.

Prerequisites on the PLC side

• FINS/TCP (or FINS/UDP) must be enabled in the Ethernet unit of the PLC and port 9600 (or the port you use) must be open.
• Find out the node number (FINS node) and the network number of the PLC. In a common installation, the node number is the last part of the IP address.
• With FINS/TCP, the number of simultaneous connections of the PLC is limited; when the limit is reached, a new connection is rejected.

Setting up a connection

1. Add a connection

   In the Connections section: Add, driver Omron FINS; enter the IP address of the PLC, and port 9600 is filled in.

2. Set the transport and nodes

   

   Conveying

   FINS / TCP (default) or FINS / UDP.

   PLC node no. (DA1)

   0 – 254. If the value is 0, TCP uses the number reported by the PLC during the handshake and UDP uses the last octet of the PLC's IP address.

   Computer node no. (SA1)

   0 – 254. If the value is 0, TCP uses the number assigned by the PLC and UDP uses the last octet of this computer's IP address.

   Network number (DNA)

   0 – 127. 0 = local network.

3. Add a tag

   Enter the memory area and the number as the address (Tag addresses).

Memory areas and addresses

• D100.03: bit of the word (00 – 15), for a Bool tag. A Bool tag requires a word bit; no bit number is written for timers and counters.
• T10 / C10: a Bool tag reads the done flag, an Int / UInt tag reads the current value; no other type is accepted.
• Int / UInt occupy 1 word, DInt / UDInt / Real occupy 2 words (low word first), LReal occupies 4 words. String holds 2 characters per word (the high byte of the word is the first character); the default Length is 32, maximum 254.

Read and write

• Nearby tags in the same area are read in a single request (at most 480 words; gaps of at most 16 words between them are merged); if the PLC rejects a block, the block is read tag by tag.
• Words are written with the word area code; a bit of a word is written with the bit area code, so only that bit changes in the PLC.

Driver reference

Omron FINS

Omron CJ / CS / CP / NJ series. 32-bit types use two consecutive words.

Driver ID

fins (name in the project file)

Connection

An IP address / computer name and a port are required (default port 9600)

Data types

Bool Int UInt DInt UDInt Real LReal String

Connection parameters

Appears in the Inspector window when a connection is selected.

Address formats

Sample addresses

Common errors

The marker at the start of each line tells where the message will appear in Live: [connection] in the Connections section of the system menu; [write] in the notification window of the operator who performed the write; [Studio] in the address cell in Studio. [tag] is a tag error during reading: the tag is left with bad quality, the text of the message is not shown in Live in this version (Tag errors); read the text to understand the cause.

Limits