I am using a RUT956 for reading holding registers from my flowmeter. I´m using Modbus RTU (RS-232). Now, I want to send this holding registers values via SMS to my cellphone. I tried making an specific script but it does not works because router does not have Jq, mbpoll or modbus_client packages. What can i do? I need help.
This depends on what information you want to send, and on what event (trigger). For example, you can configure Modbus Alarms to send a message to your MQTT broker when the value of a specific modbus register changes. More information about Modbus alarms is available here. You can also use I/O Juggler to send MQTT messages when there are I/O changes. More information is available here.
There are also SMS and Email alarm options that are available. For example, in addition to Modbus alarms and I/O Juggler, you can use Events Reporting here.