It is my first time with grafana so please dont shout at me
I need to create dashboard to control over 50 machines in my company through modbus.
I have created config and dashboard and look preatty cool but i have problem with value mapping.
The value what i need to map is proccess step time. Some processes has 3minuts and others 45 minus - how i can display this on the dash? I recive from modbus data like this (only first column)
0
0
min
256
1
min
512
2
min
768
3
min
1024
4
min
1280
5
min
1536
6
min
1792
7
min
2048
8
min
2304
9
min
2560
10
min
2816
11
min
3072
12
min
3328
13
min
3584
14
min
3840
15
min
4096
16
min
4352
17
min
4608
18
min
4864
19
min
5120
20
min
5376
21
min
5632
22
min
5888
23
min
6144
24
min
6400
25
min
6656
26
min
6912
27
min
7168
28
min
7424
29
min
7680
30
min
7936
31
min
8192
32
min
8448
33
min
do I have to map every single value from modbus to be able to displat actual time on my dash ?
What is your datasource? It might make more sense to do the “conversion” there.
How are you retrieving the Modbus values? I use Node-RED and again, you could do the conversion there with a lookup table.
Even if you are forced to type out the 90 or so values in the Value Mappings section of Grafana, you would only have to do it once (takes 20 minutes max).
You could reference an array of your map values in Flux and then have your Influx query use the minute value (instead of the Modbus data), but that is a fairly intricate Flux query. You might save time by just creating a giant list of Value mappings in Grafana.
Also, instead of Telegraf, have you tried/used Node-RED? It’s perfect for grabbing Modbus data, manipulating it to your liking, and then sending to InfluxDB. I use it extensively for collecting Modbus data and sending to InfluxDB.
Telegraf is first what i found. If I have some free time at work i do this project. Telegraf was first what i’ve founded online for collecting modbus data, but i am trying to run this as a test, Grafana and other stuff is installed on windows desktop PC. I have plan to reinstall all on Linux when i grab all the data what i need. I received a tcpip/modbus from a representative of the company from which we have the devices, but nothing more and I try to put all togethet.
