Honeywell HC900 - Page 412

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