node-red-contrib-s7

node-red-contrib-s7 copied to clipboard

After successfully reading an array of 2 dint from S7 PLC, e.g. DB550,DI1234.2, I also wanted to write a byte array back from NodeRed. Unfortunately, I was not successful so...

StefWe

Reading the whole DB

1

Hi, I'm using node-red-contrib-s7 to connect S7-1200 PLC. Instead of reading variable one by one (mode than 200), I need to read the whole DB. There is a way to...

DonatoD

Array of Structure Read

1

How I can read elements in array of structures/array/PLC data type using this? I do not see anything in documentation

INDRANI125

Hi, anyone knows how to access PIW address?

efrefrefr

Cannot write Strings to PLC (S7-315 PN/DP)

1

### Describe the bug The Node-Out Node in Version 3.1.0 does not support strings to be written to the PLC. I am using a S7315 to write data to the...

ciphermaster

Multiple connections to plc when deploy instance

2

### Describe the bug Every time we deploy the instance, it creates a new connection to plc and when it gets more than 32conn plc stops with conn limit ###...

avlpjwt

S7 error is not propagated

4

Hi, with the 2.2.1 version I get a read error from an S7 (probably something wrong there). The node shows a yellow light and the info "fehlerhaft" (faulty). On the...

mhechthz

Variables configured on the s7 node and not the endpoint

2

In one of my current applications I have about 30 machines that are almost identical, and I'm reading 30~40 variables on each one. Since the variables are tied to the...

OriolFM

ECONNRESET when PLC connection drops

9

Hello, I have a problem with Node-RED: continuously communicates with PLCs using node-red-contrib-s7, it worked well for a long time, once migrated Node.JS and Node-RED (without changes to the flows)...

matteoangrisano

`LIBUSB_TRANSFER_NO_DEVICE` with mpi-usb cable (S7-200)

35

I try to connect my PLC S7-200 with a PPI cable to Node-RED. Every time I give in the properties for an S7 endpoint with "Transport" on "MPI/PPI/Dp USB Adapter",...

Waterboy1602