What factors influence the speed of sampling of modbustcp-read nodes?
I have a device with 4x 12 bit Analog inputs rated at 20Hz.
I think that could mean it could sample every 50ms?
I want to sample 5 times a second, every 200ms.
I have two other inputs on the same ModbusTCP device.
I don't need to sample them anywhere near as fast, even 1 sample per minute would be ok.
Can I set different polling rates on different modbustcp nodes?
It seems to me to cause problems with disconnect detection and restarting if I set different polling rates?
I am running the latest versions of everything on a FriendlyArm NanoPi M4, 64 bit lubuntu LXDE 18.04 4G RAM. 16G eMMC.
When I try to poll at anything faster than 1 sample per second the web interface of Node-RED seems to start having problems. It is slow to open node properties, when in node properties drop down option lists keep closing themselves before you have a chance to select what you need.
Any thoughts please?