Honeywell HC900 Reference Manual page 220

Function Blocks
MBW Modbus Write Function Block
Sequence Parameter
Number Field
3
4
5
You must press [APPLY] to accept the register changes.
6
206
Action
Type in the address of
the register (in Hex) on
the slave device
From the drop down
menu, select the
Register Data Type
The function code for
"Unsigned 16 or
Signed 16 register data
type is (06)*
The function code for
"Float, Unsigned 32 or
Signed 32 register data
type is (10 hex)*
*automatically selected
when you select
"Register Data Type"
HC900 Hybrid Control Designer Function Block Reference Guide
Selections
• Float Several standard
Modbus RTU function
• Unsigned 32
codes are supported.
These standard
• Signed 32
function codes provide
basic support for IEEE
• Unsigned 16
32-bit floating point
numbers and 16-bit
• Signed 16
integer register
representation of
instrument's process
data. (see Sequence
Number 5 below)
Preset Single Function code 06
•
Registers – presets integer value
Function Code into a single register.
06
Function Code 10 hex
• Preset Multiple presets values into
Registers – holding registers.
Function Code
NOTE: Refer to the
10 hex
Communications
manual for the function
codes supported by the
specific device.
Comments
Revision 11
2/07