Read multiple registers

[mrfy]

Hi, I want to read multiple registers but don't know how to, I've cloned repo and below I paste my tests:

When I send topic as array of registers I have response only from first register, becouse node is busy in myReply function.

Is this way of reading correct and consistent with the assumptions?: My flow:

[toplinuxsir]

The same question , how to read multiple items at one time ？ Thanks！

[Steve-Mcl]

the node does not support multiple read. however, you can read multiple consecutive addresses and parse out the relevant values.

e.g:

• NEED: D0, D10 and d55
• READ D0,56 (read 56 WORDS)
• USE msg.payload.D0, msg.payload.D10, msg.payload.D55 in your downstream nodes.

If you want support for reading different areas and sizes, the driver would need to be updated to support "Batch read multiple blocks (command: 0406)" (See section 8.4 in the protocol specification: https://dl.mitsubishielectric.com/dl/fa/document/manual/plc/sh080008/sh080008ab.pdf)

However, i no longer have access to Mitsi PLCs and this would prove difficult to do without one.

---

EDIT:

My apologies for the delay in responding. This question fell off my radar during a particularly busy period of my life and I have just re-discovered it.