Honeywell HC900 Reference Manual page 403

Outputs
RD1 through RD4 = Last read value from the selected address
NO_SCAN = Scan Indication
BAD_COM = Communications Indication
IP_ADDR = IP Slave Address for use with TCPR and TCPW 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.
Revision 11
2/07
ON = Device is "Out of Scan"
OFF = Device is "In Scan".
ON = Bad quality or device not defined
OFF = Good Communications
HC900 Hybrid Control Designer Function Block Reference Guide
Function Blocks
TCPS Function Block
389