Table 60 Mbs Block General Tab Configuration Parameters - Honeywell HC900 Reference Manual

Function Blocks
MBS Modbus Slave Function Block
Outputs
RD1 through RD4 = Last read value from the selected address
NO_SCAN = Scan Indication
BAD_COM = Communications Indication
ADDR = Slave Address for use with MBR and MBW function blocks
ATTENTION
•
Integer values are converted to floating point values prior to output.
•
If a Modbus slave device does not respond to a request, the last output value will be
maintained.
Block properties
Double click on the function block to access the function block properties dialog box.
Configuration parameters
The ON/OFF properties dialog box is divided into Three tab cards:
GENERAL
READ
WRITE
Click on the tab to access the properties for that tab.
GENERAL tab
It looks like this graphically.
Properties Function
Configure Modbus
Slave
198
ON = Device is "Out of Scan"
OFF = Device is "In Scan".
ON = Bad quality or device not defined
OFF = Good Communications
T able 60 describes the parameters and the value or selection.
H

Table 60 MBS Block General tab configuration parameters

Parameter Index #
Slave Tag 1
Name
HC900 Hybrid Control Designer Function Block Reference Guide
Parameter Description
Description of Slave
Device
Value or Selection
16-character tag name
Slave address and Tag Name
must be unique within a control
file.
Revision 11
2/07