Below there are presented Modbus commands supported by the controller:
a) Commands
Modbus command
Controller reaction
standard
1
Read Coils
not supported
2
Read Discrete Inputs returns the state of digital inputs in bits
3 Read Holding Registers returns the status of the controller
4
Read Input Registers returns the status of the controller
5
Write Single Coil
not supported
6
Write Single Register sets the value of a single input channel
of the Modbus
15
Write Multiple Coils
not supported
16 Write Multiple Register sets the value of many input channels
of the Modbus
own
65
Internal event
triggers an internal event with no value,
the argument is the number of a virtual event
66
Internal event
triggers several internal events without values,
the arguments are the numbers of virtual
events
67
Internal event
triggers an internal event with a value, the first
argument is the number of virtual events,
the second is the value of the event
68
Internal event
triggers several internal events with values, the
arguments are the numbers of virtual events
69
Action
triggers a specific action
70
Action
triggers many actions
46
