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--- uphp:functions:mb_set_dev_var [2018/09/09 10:49]
jeff
+++ uphp:functions:mb_set_dev_var [2021/09/13 05:57] (current)
@@ Line 28: / Line 28: @@
 <html><b><span style="color:blue">$id<span style="color:black"></b></html>:  Device identification number (slave ID)
-<html><b><span style="color:blue">$variable<span style="color:black"></b></html>:  Parameter to set
+<html><b><span style="color:blue">$variable<span style="color:black"></b></html>:  Parameter to set.
+This can be the register name, one of the predefined parameters such as "name", "slave_id", "delay", or a role value by passing "roleX" where is X is a number between 0 and the number of roles -1 for that driver.  This will allow you to set a role value which may span two registers (such as a float or unsigned) in one go.  It will take care of sending the appropriate Modbus command to update the value in the device itself.
 <html><b><span style="color:blue">$value<span style="color:black"></b>:  Value to set for the <b><span style="color:blue">variable<span style="color:black"></b></html>
@@ Line 40: / Line 42: @@
 [[mb_add_dev()]] - Add a device to the list of polled devices
-[[mb_delete_device()]] - Delete a device from the list of active devices
+[[mb_delete_dev()]] - Delete a device from the list of active devices
 [[mb_get_dev_by_id()]] - Return modbus device details by ID

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