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135
System Monitor Screens
Section 4-17
Code
Description
Explanation
Operation at Error
Remedy
0
Normal
1
Connection terminal/
output terminal con-
nection not defined
Either the function block is not
registered to the block
address of the source desig-
nation or the destination, or
the ITEM number does not
exist.
Running of the function
block in question is
stopped, and the functions
in question do not operate
normally.
Check the block address
and ITEM number of the
source designation or desti-
nation designation.
2
Default error
When run/stop command S1
turned ON in the ramp pro-
gram or segment program,
the reference input was out-
side the rise ramp range.
The program is not started.
Check the connection of the
reference input and pro-
gram settings.
3
Variable value error
A constant between A1 and
A8 or an intermediate buffer
between B1 and B4 that is
used in the conditional state-
ment for Arithmetic Opera-
tion (Block Model 126) is not
defined.
Execution of the Arithmetic
Operation block will be
stopped.
Set definitions for all con-
stants A1 to A8 and an
intermediate buffers B1 to
B4 that are used.
10
Operation process:
Division by “0”
An attempt was made to exe-
cute division by a “0” denomi-
nator in the operation
process.
In the case of Multiplication,
DI/AI Terminal from CPU
Unit, DI/AI Terminal from
Expanded CPU Unit or
Field Terminal blocks, the
maximum value is output. In
the case of the Segment
Linearizer or Temperature
and Pressure Correction
blocks, the previous data is
retained.
In the case of DI/AI Termi-
nal from CPU Unit, DI/AI
Terminal from Expanded
CPU Unit or Field Terminal
blocks, check the scaling
value, and in the case of the
Segment Linearizer block,
check the setting value of
the input coordinate side. In
the case of temperature
and pressure correction,
check the gain bias value.
An attempt was made to exe-
cute division by a ”0” denomi-
nator in Arithmetic Operation
block (Block Model 126).
Execution of the Arithmetic
Operation block will be
stopped.
Check the contents of the
conditional statement and
calculation expressions for
division by 0.
11
Operation process:
Operation out of
restricted value
The output value of the oper-
ation result exceeded the
data length of two bytes.
Note
An error does not occur
even if the output range
(e.g., 320.00) is
exceeded if the data
length of two bytes is
not exceeded.
Output becomes the maxi-
mum value or minimum
value of the output range.
(For example, when the out-
put range is 320.00, the
output b320.00 or
320.00.)
If there is a problem, review
the settings of related
ITEMs.
The arguments or results for
a Arithmetic Operation block
exceed the defined limits.
Execution of the Arithmetic
Operation block will be
stopped.
Check the contents of the
conditional statement and
calculation expressions and
correct the mistake.
12
Argument beyond defi-
nition
An argument used in Arith-
metic Operation (Block Model
126) is beyond the definition.
Execution of the Arithmetic
Operation block will be
stopped.
Check the range of the
arguments and correct the
conditional statement or
calculation expressions.
15
AT error
A limit cycle cannot be gener-
ated for Basic PID (Block
Model 011) or Advanced PID
(Block Model 012) or suitable
PID constants cannot be cal-
culated.
Execution of the relevant
block will be stopped.
Check the following AT
parameters: ITEM 036 to
ITEM 040. Also, set ITEM
051 to 2 s or less.
Summary of Contents for CX-Process Monitor Plus 2
Page 1: ...CX Process Monitor Plus Ver 2 Cat No W428 E1 02 SYSMAC WS02 LCMC1 EV2 OPERATION MANUAL...
Page 2: ...WS02 LCMC1 EV2 CX Process Monitor Plus Ver 2 Operation Manual Revised January 2007...
Page 3: ...iv...
Page 5: ...vi...
Page 9: ...x...
Page 15: ...xvi Application Precautions 4...
Page 41: ...26 Basic Operating Procedure Section 1 2...
Page 243: ...228 Checking Configurations Section 5 7...
Page 267: ...252 Reading Writing Function Block ITEMs Appendix A...
Page 269: ...254 Differences between Trend Screens and Batch Trend Screens Appendix B...