BENSHAW RSi H2 Series - Modbus-RTU Communication

Communications
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890053-00-02
10.3 Modbus-RTU Communication
10.3.1 Setting Virtual Multi-function Inputs
Multi-function inputs can be controlled using a communication address (0h0385). Set parameters
COM-70–77 to the functions to operate, and then set the BIT relevant to the function to 1 at 0h0385
to operate it. Virtual multi-function inputs operate independently from IN-65–71 digital multi-
function inputs and cannot be set redundantly. Virtual multi-function input can be monitored using
COM-82 (Virt Dl Status). Before you configure the virtual multi-function inputs, set the DRV
parameter according to the command source.
Group
Code
Name
LCD Display
Parameter Setting
Setting range
Unit
COM
70–77
Communication
multi-function input x
Virtual DI x
(x: 1–8)
0
None
0–55
-
82
Communication
multi-function input
monitoring
Virt DI
Status
0000 0000 –
1111 1111
bit
Example: When sending an Fx command by controlling virtual multi-function input in the common
area via Int485, set COM-70 to ‘FX’ and set address 0h0385 to ‘0h0001’.
10.3.2 Saving Parameters Defined by Communication
If you turn off the inverter after setting the common area parameters or keypad parameters via
communication and operate the inverter, the changes are lost and the values changed via
communication revert to the previous setting values when you turn on the inverter.
Set CNF-48 to ‘1 (Yes)’ to allow all the changes over communication to be saved, so that the
inverter retains all the existing values even after the power has been turned off.
Setting address 0h03E0 to ‘0’ and then setting it again to ‘1’ via communication allows the existing
parameter settings to be saved. However, setting address 0h03E0 to ‘1’ and then setting it to ‘0’
does not carry out the same function.
Group
Code
Name
LCD Display
Parameter Setting
Setting range
Unit
CNF
48
Save parameters
Parameter Save
0
No
0
No
-
1
Yes