Omron CPM2C User Manual

247
Data Memory (DM) Allocation Section 7-4
3. Timeout error occurred
Component Status (Offset: +1)
Read Data (Offset: +2, +4, ... , +22, and +24)
The read data is contained in two words starting at offset 2
× n (n = variable
number.)
The variable data read from a component can have a value ranging from
0000 0000 to FFFF FFFF. The read data will be 0000 0000 if a communica-
tions error occurred. The following example shows the contents of the read
data area when a communications error occurred while reading the variable 2
read data.
• Response Monitor Area: Contains the error code.
• Status: Contains the controller status.
• Read data 1: Contains the data read from the component.
• Read data 2: Contains 0000 0000.
• Remaining read items: Contain 0000 0000.
Note 1. The decimal point position has to be managed by the user since the com-
ponent’s decimal point position is not transferred in CompoWay/F commu-
nications.
2. BCD format is used with Digital Panel Meters (K3N@). For details, refer to
the manual for the model used.
Write Data Area
(26 words max.)
The starting address of the “write data area” is specified in the “write variable
type area.” Store the variable data that you want to write to the component in
this “write data area.”
Timeout code Meaning
E999 Indicates that there was no response from the compo-
nent.
16
3
16
2
16
1
16
0
Component status
Contain the controller status of the component.
Offset Range Function
2 × n
(n = variable
number)
0000 to FFFF
(Hex)
Contains the lower (rightmost) two bytes of the
data. Data is expressed in 2’s complement
signed binary format.
(2 × n) + 1
(n = variable
number)
0000 to FFFF
(Hex)
Contains the upper (leftmost) two bytes of the
data. Data is expressed in 2’s complement
signed binary format.
Offset Contents
+0 Response monitor
+1 Operation Command
+2 Variable 1 write data (lower bytes)
+3 Variable 1 write data (upper bytes)
+4 Variable 2 write data (lower bytes)
+5 Variable 2 write data (upper bytes)
:
:
:
:
+22 Variable 11 write data (lower bytes)
+23 Variable 11 write data (upper bytes)
+24 Variable 12 write data (lower bytes)
+25 Variable 12 write data (upper bytes)

Omron CPM2C Specifications

General

Brand	Omron
Model	CPM2C
Category	Controller
Language	English