Loop Control Unit Precautions; System Information Area Settings; Applicable Versions - Omron CX-PROCESS MONITOR PLUS V2 - 01-2007 Operation Manual

Loop Control Unit Precautions

3-3

Loop Control Unit Precautions

3-3-1

System Information Area Settings

System Information
3-3-2

Applicable Versions

72
When monitoring a Loop Control Unit with Monitor Plus, the "system informa-
tion area" is used to display and set the system information. To use the sys-
tem information area, the following data must be set in the System Common
block (Block Model 000) in the Loop Control Unit.
Default Settings to the System Common block (Block Model 000)
ITEM
043 Leading address (S) of the data memory
for node Terminals
042 LCU number
A unique LCU number identifies each Loop
Control Unit when there are multiple Loop
Control Units (3 Units max.) mounted in the
CPU Rack.
System information is information such as the Loop Control Unit's unit
address and operating information. When the Loop Control Unit starts, this
information is written to the 24 words (8 words per Loop Control Unit) starting
with the leading address the data memory for node Terminals.
Loop Control Unit
LCU number 2
System
Information
(8 words)
Note 1. The default leading address of the data memory for node Terminals is
D16020 and the default LCU number is 0. Accordingly, the default location
for the system information is the eight words from D16020 to D16027 when
the Loop Control Unit is started. If the Loop Control Unit is being used with
its default settings, do not use words D16020 to D16027 for any other ap-
plications.
2. When two or three Loop Control Units are mounted in the same CPU Rack,
set a unique LCU number (ITEM042) in each Loop Control Unit to distin-
guish the Units. In addition, set the same leading address of the data mem-
ory for node Terminals (ITEM043) in each Loop Control Units.
The Send All Blocks (Block Model 461) and Receive All Blocks (Block Model
462) are not supported by Loop Control Units prior to version 2.0. CX-Process
Monitor Plus thus cannot be used with Loop Control Units prior to version 2.0.
Function
Loop Control Unit Loop Control Unit
LCU number 1 LCU number 0
System
Information
System
(8 words)
Information
(8 words)
Section 3-3
Setting range Default
0 to 32767 16020
0 to 2 0
CPU Unit
DM Area
Leading address
of data memory
for node Terminals
8 words
8 words
8 words