Rockwell Automation T3837 ICS Regent MODBUS Master Package for WINTERPRET - Manual (Page 21)

MODBUS Master Package for W INTERPRET (T3837)
P D - 6048 August, 96
(Issue 1) 21
Configuring a MODBUS Master Function
Block
Serial Port Definition
The MODBUS function block requires you to define a Regent serial port to
use as the primary and/or secondary MODBUS Master port. To allow the
user to reserve a port for this use, and so that the port definition can be
check at runtime a new type of serial port, called MOD MASTER, is used.
(This is a MODBUS master port type, but the current length restrictions
limit the length of port types to 10 characters.)
Serial Port List Dialog Box
From the Project Editor "Definitions" menu, select Serial Ports. This will
display the Serial Port List Dialog Box (see Figure 11).
Figure 11. Serial Port List Dialog Box
The Type drop-down control now displays MOD MASTER between the
ASCII and MODBUS selections. The dialog box functions normally,
except that an additional validation rule is added for the MOD MASTER
port type.